1
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Baird SR, Vogels CM, Geier SJ, Watanabe LK, Binder JF, Macdonald CLB, Westcott SA. The phosphinoboration of thiosemicarbazones. CAN J CHEM 2022. [DOI: 10.1139/cjc-2022-0088] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
This study reports on the exploration of the phosphinoboration reaction with several thiosemicarbazones (R5R4NC(S)NR3N=CR1R2). Reactions between either Ph2PBpin (pin = 1,2-O2C2Me4) or Ph2PBcat (cat = 1,2-O2C6H4) with thiosemicarbazones containing a terminal primary or secondary amine afforded boron-containing heterocyclic 1,3,4-thiadiazoline products in excellent yield. The addition of Ph2PBpin to thiosemicarbazones containing an NMe2 group in the terminal position generated novel five-membered heterocycles in moderate yield, which included boron, sulfur, and nitrogen atoms. Heterocyclization of the thiosemicarbazones occurs preferentially in the presence of functional groups such as acetyl and pyridyl groups.
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Affiliation(s)
- Samuel R. Baird
- Department of Chemistry and Biochemistry, Mount Allison University, Sackville, NB E4L 1G8, Canada
| | - Christopher M. Vogels
- Department of Chemistry and Biochemistry, Mount Allison University, Sackville, NB E4L 1G8, Canada
| | - Stephen J. Geier
- Department of Chemistry and Biochemistry, Mount Allison University, Sackville, NB E4L 1G8, Canada
| | - Lara K. Watanabe
- Department of Chemistry and Biochemistry, University of Windsor, Windsor, ON N9B 3P4, Canada
| | - Justin F. Binder
- Department of Chemistry and Biochemistry, University of Windsor, Windsor, ON N9B 3P4, Canada
| | | | - Stephen A. Westcott
- Department of Chemistry and Biochemistry, Mount Allison University, Sackville, NB E4L 1G8, Canada
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2
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Yuan Hsu S, Murphy MC, Smolensky NT, Vogels CM, Lebel AA, Masuda JD, Boudreau LH, Jr. Morin P, Westcott SA. Iminophosphine platinum(II) complexes containing long chain aniline derivatives: synthesis, characterization, and anticancer properties. Polyhedron 2022. [DOI: 10.1016/j.poly.2022.116236] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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3
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Geier SJ, Vogels CM, Melanson JA, Westcott SA. The transition metal-catalysed hydroboration reaction. Chem Soc Rev 2022; 51:8877-8922. [DOI: 10.1039/d2cs00344a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This review covers the development of the transition metal-catalysed hydroboration reaction, from its beginnings in the 1980s to more recent developments including earth-abundant catalysts and an ever-expanding array of substrates.
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Affiliation(s)
- Stephen J. Geier
- Department of Chemistry and Biochemistry, Mount Allison University, Sackville, NB E4L 1G8, Canada
| | - Christopher M. Vogels
- Department of Chemistry and Biochemistry, Mount Allison University, Sackville, NB E4L 1G8, Canada
| | - Jennifer A. Melanson
- Department of Chemistry and Biochemistry, Mount Allison University, Sackville, NB E4L 1G8, Canada
| | - Stephen A. Westcott
- Department of Chemistry and Biochemistry, Mount Allison University, Sackville, NB E4L 1G8, Canada
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4
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MacCormack TJ, Gormley PT, Khuong BN, Adams OA, Braz-Mota S, Duarte RM, Vogels CM, Tremblay L, Val AL, Almeida-Val VMF, Westcott SA. Boron Oxide Nanoparticles Exhibit Minor, Species-Specific Acute Toxicity to North-Temperate and Amazonian Freshwater Fishes. Front Bioeng Biotechnol 2021; 9:689933. [PMID: 34124028 PMCID: PMC8194395 DOI: 10.3389/fbioe.2021.689933] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Accepted: 05/05/2021] [Indexed: 11/25/2022] Open
Abstract
Boron oxide nanoparticles (nB2O3) are manufactured for structural, propellant, and clinical applications and also form spontaneously through the degradation of bulk boron compounds. Bulk boron is not toxic to vertebrates but the distinctive properties of its nanostructured equivalent may alter its biocompatibility. Few studies have addressed this possibility, thus our goal was to gain an initial understanding of the potential acute toxicity of nB2O3 to freshwater fish and we used a variety of model systems to achieve this. Bioactivity was investigated in rainbow trout (Oncorhynchus mykiss) hepatocytes and at the whole animal level in three other North and South American fish species using indicators of aerobic metabolism, behavior, oxidative stress, neurotoxicity, and ionoregulation. nB2O3 reduced O. mykiss hepatocyte oxygen consumption (ṀO2) by 35% at high doses but whole animal ṀO2 was not affected in any species. Spontaneous activity was assessed using ṀO2 frequency distribution plots from live fish. nB2O3 increased the frequency of high ṀO2 events in the Amazonian fish Paracheirodon axelrodi, suggesting exposure enhanced spontaneous aerobic activity. ṀO2 frequency distributions were not affected in the other species examined. Liver lactate accumulation and significant changes in cardiac acetylcholinesterase and gill Na+/K+-ATPase activity were noted in the north-temperate Fundulus diaphanus exposed to nB2O3, but not in the Amazonian Apistogramma agassizii or P. axelrodi. nB2O3 did not induce oxidative stress in any of the species studied. Overall, nB2O3 exhibited modest, species-specific bioactivity but only at doses exceeding predicted environmental relevance. Chronic, low dose exposure studies are required for confirmation, but our data suggest that, like bulk boron, nB2O3 is relatively non-toxic to aquatic vertebrates and thus represents a promising formulation for further development.
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Affiliation(s)
- Tyson J MacCormack
- Department of Chemistry and Biochemistry, Mount Allison University, Sackville, NB, Canada
| | - Patrick T Gormley
- Department of Chemistry and Biochemistry, Mount Allison University, Sackville, NB, Canada
| | - B Ninh Khuong
- Department of Chemistry and Biochemistry, Mount Allison University, Sackville, NB, Canada
| | - Olivia A Adams
- Department of Chemistry and Biochemistry, Mount Allison University, Sackville, NB, Canada
| | - Susana Braz-Mota
- Laboratory of Ecophysiology and Molecular Evolution, Brazilian National Institute for Research of the Amazon, Manaus, Brazil
| | - Rafael M Duarte
- Institute of Biosciences, São Paulo State University (UNESP), São Vicente, Brazil
| | - Christopher M Vogels
- Department of Chemistry and Biochemistry, Mount Allison University, Sackville, NB, Canada
| | - Luc Tremblay
- Department of Chemistry and Biochemistry, Université de Moncton, Moncton, NB, Canada
| | - Adalberto L Val
- Laboratory of Ecophysiology and Molecular Evolution, Brazilian National Institute for Research of the Amazon, Manaus, Brazil
| | - Vera M F Almeida-Val
- Laboratory of Ecophysiology and Molecular Evolution, Brazilian National Institute for Research of the Amazon, Manaus, Brazil
| | - Stephen A Westcott
- Department of Chemistry and Biochemistry, Mount Allison University, Sackville, NB, Canada
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5
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Abstract
The uncatalyzed addition of catecholborane to α-diimines has been examined.
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Affiliation(s)
- Stephen J. Geier
- Department of Chemistry and Biochemistry, Mount Allison University, Sackville, NB E4L 1G8, Canada
| | - Justin F. Binder
- Department of Chemistry and Biochemistry, University of Windsor, Windsor, ON N9B 3P4, Canada
| | - Christopher M. Vogels
- Department of Chemistry and Biochemistry, Mount Allison University, Sackville, NB E4L 1G8, Canada
| | - Lara K. Watanabe
- Department of Chemistry and Biochemistry, University of Windsor, Windsor, ON N9B 3P4, Canada
| | - Charles L. B. Macdonald
- Department of Chemistry and Biochemistry, University of Windsor, Windsor, ON N9B 3P4, Canada
- Department of Chemistry, Carleton University, Ottawa, ON, K1S 5B6, Canada
| | - Stephen A. Westcott
- Department of Chemistry and Biochemistry, Mount Allison University, Sackville, NB E4L 1G8, Canada
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6
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Fritzemeier RG, Nekvinda J, Vogels CM, Rosenblum CA, Slebodnick C, Westcott SA, Santos WL. Organocatalytic
trans
Phosphinoboration of Internal Alkynes. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202006096] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
| | - Jan Nekvinda
- Department of Chemistry Virginia Tech 900 West Campus Drive Blacksburg VA 24061 USA
| | - Christopher M. Vogels
- Department of Chemistry and Biochemistry Mount Allison University 63C York Street Sackville New Brunswick E4L 1G8 Canada
| | - Carol Ann Rosenblum
- Department of Chemistry Virginia Tech 900 West Campus Drive Blacksburg VA 24061 USA
| | - Carla Slebodnick
- Department of Chemistry Virginia Tech 900 West Campus Drive Blacksburg VA 24061 USA
| | - Stephen A. Westcott
- Department of Chemistry and Biochemistry Mount Allison University 63C York Street Sackville New Brunswick E4L 1G8 Canada
| | - Webster L. Santos
- Department of Chemistry Virginia Tech 900 West Campus Drive Blacksburg VA 24061 USA
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7
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Fritzemeier RG, Nekvinda J, Vogels CM, Rosenblum CA, Slebodnick C, Westcott SA, Santos WL. Organocatalytic
trans
Phosphinoboration of Internal Alkynes. Angew Chem Int Ed Engl 2020; 59:14358-14362. [PMID: 32406101 DOI: 10.1002/anie.202006096] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2020] [Indexed: 01/10/2023]
Affiliation(s)
| | - Jan Nekvinda
- Department of Chemistry Virginia Tech 900 West Campus Drive Blacksburg VA 24061 USA
| | - Christopher M. Vogels
- Department of Chemistry and Biochemistry Mount Allison University 63C York Street Sackville New Brunswick E4L 1G8 Canada
| | - Carol Ann Rosenblum
- Department of Chemistry Virginia Tech 900 West Campus Drive Blacksburg VA 24061 USA
| | - Carla Slebodnick
- Department of Chemistry Virginia Tech 900 West Campus Drive Blacksburg VA 24061 USA
| | - Stephen A. Westcott
- Department of Chemistry and Biochemistry Mount Allison University 63C York Street Sackville New Brunswick E4L 1G8 Canada
| | - Webster L. Santos
- Department of Chemistry Virginia Tech 900 West Campus Drive Blacksburg VA 24061 USA
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8
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Murphy MC, Trofimova A, LaFortune JHW, Vogels CM, Geier SJ, Binder JF, Macdonald CLB, Stephan DW, Westcott SA. The phosphinoboration of acyl chlorides. Dalton Trans 2020; 49:5092-5099. [DOI: 10.1039/d0dt00579g] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
This investigation examines the reactivity of phosphinoboronate esters Ph2PBpin (pin = 1,2-O2C2Me4) and Ph2PBcat (cat = 1,2-O2C6H4), as well as other phosphinoboron species, with various aryl and aliphatic acyl chlorides.
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Affiliation(s)
- Maia C. Murphy
- Department of Chemistry and Biochemistry
- Mount Allison University
- Sackville
- Canada
| | | | | | | | - Stephen J. Geier
- Department of Chemistry and Biochemistry
- Mount Allison University
- Sackville
- Canada
| | - Justin F. Binder
- Department of Chemistry and Biochemistry
- University of Windsor
- Windsor
- Canada
- Department of Chemistry
| | - Charles L. B. Macdonald
- Department of Chemistry and Biochemistry
- University of Windsor
- Windsor
- Canada
- Department of Chemistry
| | | | - Stephen A. Westcott
- Department of Chemistry and Biochemistry
- Mount Allison University
- Sackville
- Canada
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9
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Ramsaywack S, Bos A, Vogels CM, Gray CA, Westcott SA. Preliminary investigations into the synthesis and antimicrobial activities of boron-containing capsaicinoids. CAN J CHEM 2018. [DOI: 10.1139/cjc-2018-0193] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
This preliminary study reports on the synthesis of two new boron-capsaicin derivatives containing either a short or long chain aliphatic tail group using an iridium catalyzed hydroboration reaction with pinacolborane. The boronate ester groups reside on the terminal position of the tail group and are necessary for the bioactivity of these compounds. Indeed, both compounds showed considerable activity against two Gram-positive bacteria, including Vancomycin-resistant Enterococcus. Vancomycin is considered the last resort medication for the treatment of septicemia, and new antibacterial agents that can treat sepsis are of paramount importance. The more lipophilic boron compound with the longer aliphatic chain also showed antifungal activity against Saccharomyces cerevisiae.
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Affiliation(s)
- Sharwatie Ramsaywack
- Department of Chemistry and Biochemistry, Mount Allison University, Sackville, NB E4L 1G8, Canada
| | - Allyson Bos
- Department of Biological Sciences, University of New Brunswick, Saint John, NB E2L 4L5, Canada
| | - Christopher M. Vogels
- Department of Chemistry and Biochemistry, Mount Allison University, Sackville, NB E4L 1G8, Canada
| | - Christopher A. Gray
- Department of Biological Sciences, University of New Brunswick, Saint John, NB E2L 4L5, Canada
- Department of Chemistry, University of New Brunswick, Saint John, NB E2L 4L5, Canada
| | - Stephen A. Westcott
- Department of Chemistry and Biochemistry, Mount Allison University, Sackville, NB E4L 1G8, Canada
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10
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Scott RS, Veinot AJ, Stack DL, Gormley PT, Khuong BN, Vogels CM, Masuda JD, Baerlocher FJ, MacCormack TJ, Westcott SA. Synthesis, reactivity, and antimicrobial properties of boron-containing 4-ethyl-3-thiosemicarbazide derivatives. CAN J CHEM 2018. [DOI: 10.1139/cjc-2018-0108] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
The addition of 4-ethyl-3-thiosemicarbazide to benzaldehyde and boronic acid containing derivatives afforded the corresponding thiosemicarbazones (1–3) or benzodiazaborines (4–6) depending on the position of the boronic acid within the ring. All compounds have been characterized fully including an X-ray diffraction study of the methoxy-containing benzodiazaborine 6. Attempts to coordinate thiosemicarbazones 2 and 3 to palladium(II) acetate were unsuccessful; however, addition of the non-boron-containing derivative 1 to palladium afforded complex 7 whose molecular structure was determined by an X-ray diffraction study. The initial bioactivities of compounds 1–7 were examined against two fungi, Aspergillus niger and Saccharomyces cerevisiae, and two bacteria, Bacillus cereus and Pseudomonas aeruginosa.
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Affiliation(s)
- Ryan S. Scott
- Department of Chemistry and Biochemistry, Mount Allison University, Sackville, NB E4L 1G8, Canada
| | - Alex J. Veinot
- Department of Chemistry, Saint Mary’s University, Halifax, NS B3H 3C3, Canada
| | - Darcie L. Stack
- Department of Chemistry, Saint Mary’s University, Halifax, NS B3H 3C3, Canada
| | - Patrick T. Gormley
- Department of Chemistry and Biochemistry, Mount Allison University, Sackville, NB E4L 1G8, Canada
| | - B. Ninh Khuong
- Department of Chemistry and Biochemistry, Mount Allison University, Sackville, NB E4L 1G8, Canada
| | - Christopher M. Vogels
- Department of Chemistry and Biochemistry, Mount Allison University, Sackville, NB E4L 1G8, Canada
| | - Jason D. Masuda
- Department of Chemistry, Saint Mary’s University, Halifax, NS B3H 3C3, Canada
| | - Felix J. Baerlocher
- Department of Biology, Mount Allison University, Sackville, NB E4L 1G8, Canada
| | - Tyson J. MacCormack
- Department of Chemistry and Biochemistry, Mount Allison University, Sackville, NB E4L 1G8, Canada
| | - Stephen A. Westcott
- Department of Chemistry and Biochemistry, Mount Allison University, Sackville, NB E4L 1G8, Canada
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11
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García-López D, Civit MG, Vogels CM, Ricart JM, Westcott SA, Fernández E, Carbó JJ. Understanding the mechanism of transition metal-free anti addition to alkynes: the selenoboration case. Catal Sci Technol 2018. [DOI: 10.1039/c7cy02295f] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
A novel mechanism was proposed for the stereoselective anti-addition of selenoboranes to alkynes using catalytic amounts of PCy3.
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Affiliation(s)
- Diego García-López
- Departament de Química Física i Inorgànica
- Universitat Rovira i Virgili
- Tarragona
- Spain
| | - Marc G. Civit
- Departament de Química Física i Inorgànica
- Universitat Rovira i Virgili
- Tarragona
- Spain
| | | | - Josep M. Ricart
- Departament de Química Física i Inorgànica
- Universitat Rovira i Virgili
- Tarragona
- Spain
| | - Stephen A. Westcott
- Department of Chemistry and Biochemistry
- Mount Allison University
- Sackville
- Canada
| | - Elena Fernández
- Departament de Química Física i Inorgànica
- Universitat Rovira i Virgili
- Tarragona
- Spain
| | - Jorge J. Carbó
- Departament de Química Física i Inorgànica
- Universitat Rovira i Virgili
- Tarragona
- Spain
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12
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Zhu D, Hunter CD, Baird SR, Davis BR, Bos A, Geier SJ, Vogels CM, Decken A, Gray CA, Westcott SA. Synthesis and antimicrobial properties of cyclic fluorodiamines containing boronate esters. Heteroatom Chem 2017. [DOI: 10.1002/hc.21405] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Diya Zhu
- Department of Chemistry and Biochemistry; Mount Allison University; Sackville NB Canada
| | - Carmanah D. Hunter
- Department of Chemistry and Biochemistry; Mount Allison University; Sackville NB Canada
| | - Samuel R. Baird
- Department of Chemistry and Biochemistry; Mount Allison University; Sackville NB Canada
| | - Bradley R. Davis
- Department of Biology; University of New Brunswick; Saint John NB Canada
| | - Allyson Bos
- Department of Biology; University of New Brunswick; Saint John NB Canada
| | - Stephen J. Geier
- Department of Chemistry and Biochemistry; Mount Allison University; Sackville NB Canada
| | - Christopher M. Vogels
- Department of Chemistry and Biochemistry; Mount Allison University; Sackville NB Canada
| | - Andreas Decken
- Department of Chemistry; University of New Brunswick; Fredericton NB Canada
| | - Christopher A. Gray
- Department of Biology; University of New Brunswick; Saint John NB Canada
- Department of Chemistry; University of New Brunswick; Fredericton NB Canada
| | - Stephen A. Westcott
- Department of Chemistry and Biochemistry; Mount Allison University; Sackville NB Canada
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13
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Geier SJ, Vogels CM, Mellonie NR, Daley EN, Decken A, Doherty S, Westcott SA. The Phosphinoboration ofN-Heterocycles. Chemistry 2017; 23:14485-14499. [DOI: 10.1002/chem.201702203] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2017] [Indexed: 01/08/2023]
Affiliation(s)
- Stephen J. Geier
- Department of Chemistry and Biochemistry; Mount Allison University; Sackville NB E4L 1G8 Canada
| | - Christopher M. Vogels
- Department of Chemistry and Biochemistry; Mount Allison University; Sackville NB E4L 1G8 Canada
| | - Niall R. Mellonie
- NUCAT, School of Chemistry, Bedson Building; Newcastle University; Newcastle upon Tyne NE1 7RU England
| | - Erika N. Daley
- Department of Chemistry and Biochemistry; Mount Allison University; Sackville NB E4L 1G8 Canada
| | - Andreas Decken
- Department of Chemistry; University of New Brunswick; Fredericton NB E3B 5A3 Canada
| | - Simon Doherty
- NUCAT, School of Chemistry, Bedson Building; Newcastle University; Newcastle upon Tyne NE1 7RU England
| | - Stephen A. Westcott
- Department of Chemistry and Biochemistry; Mount Allison University; Sackville NB E4L 1G8 Canada
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14
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St-Coeur PD, Adams ME, Kenny BJ, Stack DL, Vogels CM, Masuda JD, Morin P, Westcott SA. Synthesis and characterization of iminophosphineplatinum(II) complexes of the type (κ2-P,N-2-Ph2PC6H4C(H)=NC6H4X)PtCl2 (X = OMe, F). TRANSIT METAL CHEM 2017. [DOI: 10.1007/s11243-017-0176-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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15
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Klaus JA, Brooks TM, Zhou M, Veinot AJ, Warman AM, Palayew A, Gormley PT, Ninh Khuong B, Vogels CM, Masuda JD, Baerlocher FJ, Westcott SA. Synthesis, characterization, and antimicrobial activities of palladium Schiff base complexes derived from aminosalicylic acids. TRANSIT METAL CHEM 2017. [DOI: 10.1007/s11243-017-0130-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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16
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St-Coeur PD, Kinley S, Vogels CM, Decken A, Jr. Morin P, Westcott SA. Synthesis, characterization, and anticancer properties of iminophosphineplatinum(II) complexes containing boronate esters. CAN J CHEM 2017. [DOI: 10.1139/cjc-2016-0570] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Three new iminophosphines containing pinacol-derived boronate esters have been prepared and ligated to dichloridoplatinum(II) fragments. All compounds have been characterized fully, including an X-ray diffraction study carried out for the platinum complex 8, which is derived from 4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)aniline. These three new platinum complexes, along with the non-boron containing control, have been examined for their initial cytotoxic properties against two glioma cell lines using the MTT method.
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Affiliation(s)
- Patrick-Denis St-Coeur
- Département de chimie et biochimie, Université de Moncton, Campus de Moncton, Moncton, NB E1A 3E9, Canada
| | - Samantha Kinley
- Department of Chemistry and Biochemistry, Mount Allison University, Sackville, NB E4L 1G8, Canada
| | - Christopher M. Vogels
- Department of Chemistry and Biochemistry, Mount Allison University, Sackville, NB E4L 1G8, Canada
| | - Andreas Decken
- Department of Chemistry, University of New Brunswick, Fredericton, NB E3B 5A3, Canada
| | - Pier Jr. Morin
- Département de chimie et biochimie, Université de Moncton, Campus de Moncton, Moncton, NB E1A 3E9, Canada
| | - Stephen A. Westcott
- Department of Chemistry and Biochemistry, Mount Allison University, Sackville, NB E4L 1G8, Canada
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17
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Abstract
The first examples of the catalysed hydroboration of aldehydes and aldimines using low- and high-valent rhenium complexes are reported.
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Affiliation(s)
- Rebeca Arévalo
- Departamento de Química Orgánica e Inorgánica
- Universidad de Oviedo
- Oviedo
- Spain
| | | | - Gregory A. MacNeil
- Department of Chemistry and Biochemistry
- Mount Allison University
- Sackville
- Canada
| | - Lucía Riera
- Centro de Investigación en Nanomateriales y Nanotecnología (CINN)
- CSIC-Universidad de Oviedo-Principado de Asturias
- El Entrego
- Spain
| | - Julio Pérez
- Departamento de Química Orgánica e Inorgánica
- Universidad de Oviedo
- Oviedo
- Spain
- Centro de Investigación en Nanomateriales y Nanotecnología (CINN)
| | - Stephen A. Westcott
- Department of Chemistry and Biochemistry
- Mount Allison University
- Sackville
- Canada
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18
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Civit MG, Royes J, Vogels CM, Westcott SA, Cuenca AB, Fernández E. Strategic Trimethylsilyldiazomethane Insertion into pinB–SR Followed by Selective Alkylations. Org Lett 2016; 18:3830-3. [DOI: 10.1021/acs.orglett.6b01840] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Marc G. Civit
- Department
Química Física i Inorgànica University Rovira i Virgili, C/Marcel·lí Domingo s/n, Tarragona 43007, Spain
| | - Jordi Royes
- Department
Química Física i Inorgànica University Rovira i Virgili, C/Marcel·lí Domingo s/n, Tarragona 43007, Spain
| | - Christopher M. Vogels
- Department
of Chemistry and Biochemistry, Mount Allison University, Sackville, New Brunswick E4L 1G8, Canada
| | - Stephen A. Westcott
- Department
of Chemistry and Biochemistry, Mount Allison University, Sackville, New Brunswick E4L 1G8, Canada
| | - Ana B. Cuenca
- Department
Química Física i Inorgànica University Rovira i Virgili, C/Marcel·lí Domingo s/n, Tarragona 43007, Spain
| | - Elena Fernández
- Department
Química Física i Inorgànica University Rovira i Virgili, C/Marcel·lí Domingo s/n, Tarragona 43007, Spain
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Miles BA, Patterson AE, Vogels CM, Decken A, Waller JC, Morin PJ, Westcott SA. Synthesis, characterization, and anticancer activities of lipophilic pyridinecarboxaldimine platinum(II) complexes. Polyhedron 2016. [DOI: 10.1016/j.poly.2015.07.039] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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Affiliation(s)
- Stephen J. Geier
- Mount Allison University, Department of Chemistry and Biochemistry, Sackville, New Brunswick E4L 1G8, Canada
| | - Christopher M. Vogels
- Mount Allison University, Department of Chemistry and Biochemistry, Sackville, New Brunswick E4L 1G8, Canada
| | - Stephen A. Westcott
- Mount Allison University, Department of Chemistry and Biochemistry, Sackville, New Brunswick E4L 1G8, Canada
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21
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Patterson AE, Flewelling AJ, Clark TN, Geier SJ, Vogels CM, Masuda JD, Gray CA, Westcott SA. Antimicrobial and antimycobacterial activities of aliphatic amines derived from vanillin. CAN J CHEM 2015. [DOI: 10.1139/cjc-2015-0400] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
Ten lipophilic amines were prepared from the reductive amination of vanillin and the corresponding primary amines using sodium borohydride in methanol. All compounds have been obtained elementally pure and an X-ray diffraction study on the 4-n-butylaniline derivative has confirmed the molecular structure. Whilst the overall antibiotic activity of the derivatives was low, some of these compounds, particularly the boronate ester 2-methoxy-4-((2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenylamino)methyl)phenol (7), showed a promising degree of antimycobacterial activity against Mycobacterium tuberculosis H37Ra, where activity seemed to vary by the position of the boron substitution on the aniline ring.
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Affiliation(s)
- Alyssa E. Patterson
- Department of Chemistry and Biochemistry, Mount Allison University, Sackville, NB E4L 1G8, Canada
| | - Andrew J. Flewelling
- Department of Biology, University of New Brunswick, Saint John, NB E2L 4L5, Canada
- Department of Chemistry, University of New Brunswick, Fredericton, NB E3B 5A3, Canada
| | - Trevor N. Clark
- Department of Biology, University of New Brunswick, Saint John, NB E2L 4L5, Canada
- Department of Chemistry, University of New Brunswick, Fredericton, NB E3B 5A3, Canada
| | - Stephen J. Geier
- Department of Chemistry and Biochemistry, Mount Allison University, Sackville, NB E4L 1G8, Canada
| | - Christopher M. Vogels
- Department of Chemistry and Biochemistry, Mount Allison University, Sackville, NB E4L 1G8, Canada
| | - Jason D. Masuda
- Department of Chemistry, St. Mary’s University, Halifax, NS B3H 3C3, Canada
| | - Christopher A. Gray
- Department of Biology, University of New Brunswick, Saint John, NB E2L 4L5, Canada
- Department of Chemistry, University of New Brunswick, Fredericton, NB E3B 5A3, Canada
| | - Stephen A. Westcott
- Department of Chemistry and Biochemistry, Mount Allison University, Sackville, NB E4L 1G8, Canada
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22
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Civit MG, Sanz X, Vogels CM, Bo C, Westcott SA, Fernández E. Ynones Merge Activation/Conjugate Addition of Chalcogenoborates ArE-Bpin (E=Se, S). Adv Synth Catal 2015. [DOI: 10.1002/adsc.201500650] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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23
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Jean S, Cormier K, Patterson AE, Vogels CM, Decken A, Robichaud GA, Turcotte S, Westcott SA. Synthesis, characterization, and anticancer properties of organometallic Schiff base platinum complexes. CAN J CHEM 2015. [DOI: 10.1139/cjc-2015-0157] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
A small family of organometallic platinum complexes containing a chloride, cis-cyclooctene, and a Schiff base ligand have been prepared and characterized fully. Three aliphatic amines and four aromatic amines were chosen as representative examples. All complexes were stable in air except for 7, derived from the pinacol-protected 4-aminophenylboronate ester 4-H2NC6H4Bpin (pin = 1,2-O2C2Me4), which decomposed via B–C bond cleavage. Both complexes 4 (derived from aniline) and 7 were further characterized by single-crystal X-ray diffraction studies and confirmed the square planar nature of the platinum centre whereby the chloride ligand lies trans to the deprotonated hydroxyl group of the Schiff base ligand. The imine functionality is trans to the organic cyclooctene group. Complex 3, which contained the longest aliphatic chain studied (an octyl group), was the most promising for inducing apoptosis in the malignant MB231 breast cancer cell line. Conversely, complexes 4–6, which contained aromatic groups, were the most active against renal cell carcinoma (RCC) cell lines.
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Affiliation(s)
- Stéphanie Jean
- Département de chimie et biochimie, Université de Moncton, Campus de Moncton, Moncton, NB E1A 3E9, Canada
- Atlantic Cancer Research Institute, Moncton, NB E1C 8X3, Canada
| | - Kevin Cormier
- Département de chimie et biochimie, Université de Moncton, Campus de Moncton, Moncton, NB E1A 3E9, Canada
- Atlantic Cancer Research Institute, Moncton, NB E1C 8X3, Canada
| | - Alyssa E. Patterson
- Department of Chemistry and Biochemistry, Mount Allison University, Sackville, NB E4L 1G8, Canada
| | - Christopher M. Vogels
- Department of Chemistry and Biochemistry, Mount Allison University, Sackville, NB E4L 1G8, Canada
| | - Andreas Decken
- Department of Chemistry, University of New Brunswick, Fredericton, NB E3B 5A3, Canada
| | - Gilles A. Robichaud
- Département de chimie et biochimie, Université de Moncton, Campus de Moncton, Moncton, NB E1A 3E9, Canada
- Atlantic Cancer Research Institute, Moncton, NB E1C 8X3, Canada
| | - Sandra Turcotte
- Département de chimie et biochimie, Université de Moncton, Campus de Moncton, Moncton, NB E1A 3E9, Canada
- Atlantic Cancer Research Institute, Moncton, NB E1C 8X3, Canada
| | - Stephen A. Westcott
- Department of Chemistry and Biochemistry, Mount Allison University, Sackville, NB E4L 1G8, Canada
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Cormier K, Curry RD, Betsch MP, Goguen JA, Vogels CM, Decken A, Turcotte S, Westcott SA. Synthesis, Characterization, and Anticancer Activities of Pyrogallol-Based Arylspiroborates. J Heterocycl Chem 2015. [DOI: 10.1002/jhet.2490] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Kevin Cormier
- Département de chimie et biochimie; Université de Moncton; Campus de Moncton Moncton NB E1A 3E9 Canada
- Atlantic Cancer Research Institute; Moncton NB E1C 8X3 Canada
| | - R. Daniel Curry
- Department of Chemistry and Biochemistry; Mount Allison University; Sackville NB E4L 1G8 Canada
| | - Mitchel P. Betsch
- Department of Chemistry and Biochemistry; Mount Allison University; Sackville NB E4L 1G8 Canada
| | - Jeremy A. Goguen
- Department of Chemistry and Biochemistry; Mount Allison University; Sackville NB E4L 1G8 Canada
| | - Christopher M. Vogels
- Department of Chemistry and Biochemistry; Mount Allison University; Sackville NB E4L 1G8 Canada
| | - Andreas Decken
- Department of Chemistry; University of New Brunswick; Fredericton NB E3B 5A3 Canada
| | - Sandra Turcotte
- Département de chimie et biochimie; Université de Moncton; Campus de Moncton Moncton NB E1A 3E9 Canada
- Atlantic Cancer Research Institute; Moncton NB E1C 8X3 Canada
| | - Stephen A. Westcott
- Department of Chemistry and Biochemistry; Mount Allison University; Sackville NB E4L 1G8 Canada
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25
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Salsbury LE, Robertson KN, Flewelling AJ, Li H, Geier SJ, Vogels CM, Gray CA, Westcott SA. Anti-mycobacterial activities of copper(II) complexes. Part II. Lipophilic hydroxypyridinones derived from maltol. CAN J CHEM 2015. [DOI: 10.1139/cjc-2014-0426] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Eight lipophilic 3-hydroxy-4-pyridinones have been prepared from a microwave-mediated reaction along with the corresponding copper(II) complexes. All complexes have been obtained elementally pure and X-ray diffraction studies on two of the copper complexes have confirmed the structure of these compounds. Some of these complexes showed a promising degree of anti-mycobacterial activity against Mycobacterium tuberculosis, where activity seemed to vary by substitution at the pyridinone nitrogen atom.
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Affiliation(s)
- Lauren E. Salsbury
- Department of Chemistry and Biochemistry, Mount Allison University, Sackville, NB E4L 1G8, Canada
| | | | - Andrew J. Flewelling
- Department of Biology, University of New Brunswick, Saint John, NB E2L 4L5, Canada
| | - Hoaxin Li
- Department of Biology, University of New Brunswick, Saint John, NB E2L 4L5, Canada
| | - Stephen J. Geier
- Department of Chemistry and Biochemistry, Mount Allison University, Sackville, NB E4L 1G8, Canada
| | - Christopher M. Vogels
- Department of Chemistry and Biochemistry, Mount Allison University, Sackville, NB E4L 1G8, Canada
| | - Christopher A. Gray
- Department of Biology, University of New Brunswick, Saint John, NB E2L 4L5, Canada
- Department of Chemistry, University of New Brunswick, Fredericton, NB E3B 5A3, Canada
| | - Stephen A. Westcott
- Department of Chemistry and Biochemistry, Mount Allison University, Sackville, NB E4L 1G8, Canada
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26
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Civit MG, Sanz X, Vogels CM, Webb JD, Geier SJ, Decken A, Bo C, Westcott SA, Fernández E. Thioboration of α,β-Unsaturated Ketones and Aldehydes toward the Synthesis of β-Sulfido Carbonyl Compounds. J Org Chem 2015; 80:2148-54. [DOI: 10.1021/jo5026354] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Marc G. Civit
- Dept.
Química Física i Inorgànica, Universitat Rovira i Virgili, C/Marcel·lí Domingo s/n, 43007 Tarragona, Spain
| | - Xavier Sanz
- Dept.
Química Física i Inorgànica, Universitat Rovira i Virgili, C/Marcel·lí Domingo s/n, 43007 Tarragona, Spain
- Institute of Chemical Research of Catalonia (ICIQ), Avda. Països Catalans, 16, 43007 Tarragona, Spain
| | - Christopher M. Vogels
- Department
of Chemistry and Biochemistry, Mount Allison University, Sackville, New Brunswick E4L 1G8, Canada
| | - Jonathan D. Webb
- Department
of Chemistry and Biochemistry, Mount Allison University, Sackville, New Brunswick E4L 1G8, Canada
| | - Stephen J. Geier
- Department
of Chemistry and Biochemistry, Mount Allison University, Sackville, New Brunswick E4L 1G8, Canada
| | - Andreas Decken
- Department
of Chemistry, University of New Brunswick, Fredericton, New Brunswick E3B 5A3, Canada
| | - Carles Bo
- Institute of Chemical Research of Catalonia (ICIQ), Avda. Països Catalans, 16, 43007 Tarragona, Spain
| | - Stephen A. Westcott
- Department
of Chemistry and Biochemistry, Mount Allison University, Sackville, New Brunswick E4L 1G8, Canada
| | - Elena Fernández
- Dept.
Química Física i Inorgànica, Universitat Rovira i Virgili, C/Marcel·lí Domingo s/n, 43007 Tarragona, Spain
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27
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Yang J, Johnson BJ, Letourneau AA, Vogels CM, Decken A, Baerlocher FJ, Westcott SA. Synthesis, Characterisation, and Antifungal Activities of Novel Benzodiazaborines. Aust J Chem 2015. [DOI: 10.1071/ch14534] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Eight new fluoro- and methoxy-substituted benzodiazaborines have been prepared by a simple condensation reaction in high-to-excellent yields. All new compounds have been characterised by several physical methods, including X-ray diffraction studies on three examples. All new compounds were examined for antifungal activities against five species of potentially pathogenic fungi (Aspergillus niger, Aspergillus fumigatus, Rhizoctonia solani, Verticillium albo-atrum, and Verticillium dahliae). While substitution of the aromatic group derived from the 2-formylphenylboronic acid group had an effect on bioactivities, substitution on the parent thioamide C(=S)NH2 group of the starting thiosemicarbazide greatly reduced activities.
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Abstract
The synthesis of phosphinoboronate esters containing a single P-B bond is reported, together with preliminary reactivity studies towards a range of organic substrates. These compounds add readily to aldehydes, ketones, aldimines, and α,β-unsaturated enones to give primarily the corresponding 1,2-addition products containing a new P-C bond. The first examples of transition-metal-catalyzed phosphinoborations of C-C multiple bonds in which P-C and B-C bonds are formed in a single step are also disclosed; allenes react by a highly regioselective 1,2-addition whereas terminal alkynes undergo a formal 1,1-addition.
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Affiliation(s)
- Erika N Daley
- Department of Chemistry and Biochemistry, Mount Allison University, 63C York Street, Sackville, New Brunswick, E4L 1G8 (Canada) http://thewildtoads.com/
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Patterson AE, Miller JJ, Miles BA, Stewart EL, Melanson JME, Vogels CM, Cockshutt AM, Decken A, Morin P, Westcott SA. Synthesis, characterization and anticancer properties of (salicylaldiminato)platinum(II) complexes. Inorganica Chim Acta 2014. [DOI: 10.1016/j.ica.2014.02.028] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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31
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Campbell-Verduyn LS, Bowes EG, Li H, Vallée AM, Vogels CM, Decken A, Gray CA, Westcott SA. Heterocyclic Aminoboron Compounds as Antituberculosis Agents. Heteroatom Chem 2014. [DOI: 10.1002/hc.21141] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
| | - Eric G. Bowes
- Department of Chemistry and Biochemistry; Mount Allison University; Sackville New Brunswick E4L 1G8 Canada
| | - Haoxin Li
- Department of Biology; University of New Brunswick; Saint John New Brunswick E2L 4L5 Canada
| | - Alain M. Vallée
- Department of Chemistry and Biochemistry; Mount Allison University; Sackville New Brunswick E4L 1G8 Canada
| | - Christopher M. Vogels
- Department of Chemistry and Biochemistry; Mount Allison University; Sackville New Brunswick E4L 1G8 Canada
| | - Andreas Decken
- Department of Chemistry; University of New Brunswick; Fredericton New Brunswick E3B 5A3 Canada
| | - Christopher A. Gray
- Department of Biology; University of New Brunswick; Saint John New Brunswick E2L 4L5 Canada
- Department of Chemistry; University of New Brunswick; Fredericton New Brunswick E3B 5A3 Canada
| | - Stephen A. Westcott
- Department of Chemistry and Biochemistry; Mount Allison University; Sackville New Brunswick E4L 1G8 Canada
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32
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Sanz X, Vogels CM, Decken A, Bo C, Westcott SA, Fernández E. Face to face activation of a phenylselenium borane with α,β-unsaturated carbonyl substrates: facile synthesis of C–Se bonds. Chem Commun (Camb) 2014; 50:8420-3. [DOI: 10.1039/c4cc02098g] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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Patterson AE, Bowes EG, Bos A, O’Neill T, Li H, Flewelling A, Vogels CM, Decken A, Gray CA, Westcott SA. Anti-mycobacterial activities of copper(II) salicylaldimine complexes derived from long-chain aliphatic amines. CAN J CHEM 2013. [DOI: 10.1139/cjc-2013-0274] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Twelve copper(II) Schiff base complexes derived from lipophilic amines have been prepared using either salicylaldehyde or ortho-vanillin via a microwave-assisted reaction. All complexes have been obtained elementally pure and an X-ray diffraction of an isopentyl derivative has confirmed the structure of these compounds. All complexes showed a promising degree of anti-mycobacterial activity against Mycobacterium tuberculosis, where activity seemed to increase with an increase in the length of the aliphatic chain.
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Affiliation(s)
- Alyssa E. Patterson
- Department of Chemistry and Biochemistry, Mount Allison University, Sackville, NB E4L 1G8, Canada
| | - Eric G. Bowes
- Department of Chemistry and Biochemistry, Mount Allison University, Sackville, NB E4L 1G8, Canada
| | - Allyson Bos
- Department of Biology, University of New Brunswick, Saint John, NB E2L 4L5, Canada
| | - Taryn O’Neill
- Department of Biology, University of New Brunswick, Saint John, NB E2L 4L5, Canada
| | - Haoxin Li
- Department of Biology, University of New Brunswick, Saint John, NB E2L 4L5, Canada
| | - Andrew Flewelling
- Department of Biology, University of New Brunswick, Saint John, NB E2L 4L5, Canada
| | - Christopher M. Vogels
- Department of Chemistry and Biochemistry, Mount Allison University, Sackville, NB E4L 1G8, Canada
| | - Andreas Decken
- Department of Chemistry, University of New Brunswick, Fredericton, NB E3B 5A3, Canada
| | - Christopher A. Gray
- Department of Biology, University of New Brunswick, Saint John, NB E2L 4L5, Canada
| | - Stephen A. Westcott
- Department of Chemistry and Biochemistry, Mount Allison University, Sackville, NB E4L 1G8, Canada
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34
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Webb MI, Halcovitch NR, Bowes EG, Lee GM, Geier MJ, Vogels CM, O'Neill T, Li H, Flewelling A, Decken A, Gray CA, Westcott SA. Arylspiroborates Derived from 4-tert-Butylcatechol and 3,5-Di-tert-butylcatechol and Their Antimicrobial Activities. J Heterocycl Chem 2013. [DOI: 10.1002/jhet.1997] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Michael I. Webb
- Department of Chemistry and Biochemistry; Mount Allison University; Sackville New Brunswick E4L 1G8 Canada
| | - Nathan R. Halcovitch
- Department of Chemistry and Biochemistry; Mount Allison University; Sackville New Brunswick E4L 1G8 Canada
| | - Eric G. Bowes
- Department of Chemistry and Biochemistry; Mount Allison University; Sackville New Brunswick E4L 1G8 Canada
| | - Graham M. Lee
- Department of Chemistry and Biochemistry; Mount Allison University; Sackville New Brunswick E4L 1G8 Canada
| | - Michael J. Geier
- Department of Chemistry and Biochemistry; Mount Allison University; Sackville New Brunswick E4L 1G8 Canada
| | - Christopher M. Vogels
- Department of Chemistry and Biochemistry; Mount Allison University; Sackville New Brunswick E4L 1G8 Canada
| | - Taryn O'Neill
- Department of Biology; University of New Brunswick; Saint John NB E2L 4L5 Canada
| | - Haoxin Li
- Department of Biology; University of New Brunswick; Saint John NB E2L 4L5 Canada
| | - Andrew Flewelling
- Department of Biology; University of New Brunswick; Saint John NB E2L 4L5 Canada
| | - Andreas Decken
- Department of Chemistry; University of New Brunswick; Fredericton New Brunswick E3B 5A3 Canada
| | - Christopher A. Gray
- Department of Biology; University of New Brunswick; Saint John NB E2L 4L5 Canada
- Department of Chemistry; University of New Brunswick; Fredericton New Brunswick E3B 5A3 Canada
| | - Stephen A. Westcott
- Department of Chemistry and Biochemistry; Mount Allison University; Sackville New Brunswick E4L 1G8 Canada
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35
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Burford RJ, Geier MJ, Vogels CM, Decken A, Westcott SA. Addition of boranes to iminophosphines: Synthesis and reactivity of a new bulky hydroboration reagent. J Organomet Chem 2013. [DOI: 10.1016/j.jorganchem.2013.02.003] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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36
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Ramsaywack S, Vogels CM, Ricker SL, Westcott SA, Barclay LRC. Pyridinones Are Not Antioxidants As Shown by Kinetics of Free Radical Autoxidation, but They Prevent Radical Oxidations Catalyzed by Toxic Heavy Metals. Chem Res Toxicol 2013; 26:399-409. [DOI: 10.1021/tx300486r] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Sharwatie Ramsaywack
- Departments of †Chemistry and Biochemistry and ‡Mathematics and
Computer Science, Mount Allison University, Sackville,
New Brunswick, Canada E4L 1G8
| | - Christopher M. Vogels
- Departments of †Chemistry and Biochemistry and ‡Mathematics and
Computer Science, Mount Allison University, Sackville,
New Brunswick, Canada E4L 1G8
| | - S. Laurie Ricker
- Departments of †Chemistry and Biochemistry and ‡Mathematics and
Computer Science, Mount Allison University, Sackville,
New Brunswick, Canada E4L 1G8
| | - Stephen A. Westcott
- Departments of †Chemistry and Biochemistry and ‡Mathematics and
Computer Science, Mount Allison University, Sackville,
New Brunswick, Canada E4L 1G8
| | - L. Ross C. Barclay
- Departments of †Chemistry and Biochemistry and ‡Mathematics and
Computer Science, Mount Allison University, Sackville,
New Brunswick, Canada E4L 1G8
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37
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Stewart EL, Patterson AE, O'Neill T, Li H, Flewelling A, Vogels CM, Decken A, Lloyd VK, Gray CA, Westcott SA. Synthesis, characterization, and bioactivities of platinum(II) complexes bearing pyridinecarboxaldimines containing aliphatic groups. CAN J CHEM 2013. [DOI: 10.1139/cjc-2012-0371] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Condensation of 2-pyridinecarboxaldehyde with six primary amines containing aliphatic groups gave the corresponding pyridinecarboxaldimines (N-N′R). Addition of these ligands to [PtCl2(coe)]2 (coe = cis-cyclooctene) gave complexes of the type cis-PtCl2(N-N′R) (1: R = propyl, 2: R = hexyl, 3: R = octyl, 4: R = nonyl, 5: R = hexadecyl, and 6: R = octadecyl) in moderate yields. The molecular structure of the hexyl derivative (2) has been confirmed by an X-ray diffraction study. Crystals of 2 were triclinic with a = 8.6858(19) Å, b = 8.7567(19) Å, c = 9.5080(19) Å, α = 76.546(3)°, β = 87.151(3)°, and γ = 78.586(3)° in the space group P1. All platinum complexes show considerable anti-bacterial and anti-mycobacterial properties.
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Affiliation(s)
- Erin L. Stewart
- Department of Chemistry and Biochemistry, Mount Allison University, Sackville, NB E4L 1G8, Canada
| | - Alyssa E. Patterson
- Department of Chemistry and Biochemistry, Mount Allison University, Sackville, NB E4L 1G8, Canada
| | - Taryn O'Neill
- Department of Biology, University of New Brunswick, Saint John, NB E2L 4L5, Canada
| | - Haoxin Li
- Department of Biology, University of New Brunswick, Saint John, NB E2L 4L5, Canada
| | - Andrew Flewelling
- Department of Biology, University of New Brunswick, Saint John, NB E2L 4L5, Canada
| | - Christopher M. Vogels
- Department of Chemistry and Biochemistry, Mount Allison University, Sackville, NB E4L 1G8, Canada
| | - Andreas Decken
- Department of Chemistry, University of New Brunswick, Fredericton, NB E3B 5A3, Canada
| | - Vett K. Lloyd
- Department of Biology, Mount Allison University, Sackville, NB E4L 1G7, Canada
| | - Christopher A. Gray
- Department of Biology, University of New Brunswick, Saint John, NB E2L 4L5, Canada
| | - Stephen A. Westcott
- Department of Chemistry and Biochemistry, Mount Allison University, Sackville, NB E4L 1G8, Canada
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38
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Geier MJ, Bowes EG, Lee GM, Li H, O'Neill T, Flewelling A, Vogels CM, Decken A, Gray CA, Westcott SA. Synthesis and Biological Activities of Arylspiroborates Derived from 2,3-Dihydroxynaphthalene. Heteroatom Chem 2013. [DOI: 10.1002/hc.21072] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Affiliation(s)
- Michael J. Geier
- Department of Chemistry and Biochemistry; Mount Allison University; Sackville; New Brunswick; E4L 1G8; Canada
| | - Eric G. Bowes
- Department of Chemistry and Biochemistry; Mount Allison University; Sackville; New Brunswick; E4L 1G8; Canada
| | - Graham M. Lee
- Department of Chemistry and Biochemistry; Mount Allison University; Sackville; New Brunswick; E4L 1G8; Canada
| | - Haoxin Li
- Department of Biology; University of New Brunswick; Saint John; New Brunswick; E2L 4L5; Canada
| | - Taryn O'Neill
- Department of Biology; University of New Brunswick; Saint John; New Brunswick; E2L 4L5; Canada
| | - Andrew Flewelling
- Department of Biology; University of New Brunswick; Saint John; New Brunswick; E2L 4L5; Canada
| | - Christopher M. Vogels
- Department of Chemistry and Biochemistry; Mount Allison University; Sackville; New Brunswick; E4L 1G8; Canada
| | - Andreas Decken
- Department of Chemistry; University of New Brunswick; Fredericton; New Brunswick; E3B 5A3; Canada
| | | | - Stephen A. Westcott
- Department of Chemistry and Biochemistry; Mount Allison University; Sackville; New Brunswick; E4L 1G8; Canada
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Bowes EG, Lee GM, Vogels CM, Decken A, Westcott SA. Palladium salicylaldimine complexes derived from 2,3-dihydroxybenzaldehyde. Inorganica Chim Acta 2011. [DOI: 10.1016/j.ica.2011.07.051] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Lee GM, Vogels CM, Decken A, Westcott SA. Iridium Phosphane Complexes Containing Arylspiroboronate Esters for the Hydroboration of Alkenes. Eur J Inorg Chem 2011. [DOI: 10.1002/ejic.201100057] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Hunter NM, Vogels CM, Decken A, Bell A, Westcott SA. [Cp*IrCl2]2 catalyzed hydroborations of alkenes using a bulky dioxaborocine. Inorganica Chim Acta 2011. [DOI: 10.1016/j.ica.2010.09.051] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Barnes SS, Vogels CM, Decken A, Westcott SA. Addition of boranes to N-aryl-salicylaldimines: Intramolecular hydrogenation of imines. Dalton Trans 2011; 40:4707-14. [DOI: 10.1039/c1dt10132c] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Melanson JA, Vogels CM, Decken A, Westcott SA. Catalytic hydroboration of vinylarenes using a zwitterionic arylspiroboronate ester iridium complex. INORG CHEM COMMUN 2010. [DOI: 10.1016/j.inoche.2010.07.044] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Geier MJ, Vogels CM, Decken A, Westcott SA. Acetylacetonato(phosphane)iridium Complexes: Synthesis and Catalytic Activity in the Cyclization of Alkynoic Acids. Eur J Inorg Chem 2010. [DOI: 10.1002/ejic.201000655] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Doherty S, Knight JG, Bell AL, El-Menabawey S, Vogels CM, Decken A, Westcott SA. Rhodium complexes of (R)-Me-CATPHOS and (R)-(S)-JOSIPHOS: highly enantioselective catalysts for the asymmetric hydrogenation of (E)- and (Z)-β-aryl-β-(enamido)phosphonates. ACTA ACUST UNITED AC 2009. [DOI: 10.1016/j.tetasy.2009.05.023] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Hicks JW, Kyle CB, Vogels CM, Wheaton SL, Baerlocher FJ, Decken A, Westcott SA. Synthesis, characterization, and antifungal activity of boron-containing thiosemicarbazones. Chem Biodivers 2009; 5:2415-22. [PMID: 19035570 DOI: 10.1002/cbdv.200890206] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Addition of thiosemicarbazide, 4-allylthiosemicarbazide, and 4-phenylthiosemicarbazide to (formylphenyl)boronic acids affords a series of thiosemicarbazones containing boronic acids. Addition of 2-formylphenylboronic acid to the thiosemicarbazides gave the corresponding cyclic 2,3,1-benzodiazaborines. All new compounds have been investigated for potential antifungal activity.
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Affiliation(s)
- Justin W Hicks
- Department of Chemistry, Mount Allison University, Sackville NB E4L1G8, Canada
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Garon CN, McIsaac DI, Vogels CM, Decken A, Williams ID, Kleeberg C, Marder TB, Westcott SA. Synthesis and structure of indenyl rhodium(I) complexes containing unsaturated phosphines: catalyst precursors for alkene hydroboration. Dalton Trans 2009:1624-31. [DOI: 10.1039/b812259h] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Appoh FE, Wheaton SL, Vogels CM, Baerlocher FJ, Decken A, Westcott SA. Synthesis, structure, and antifungal activity of dihydropyridones containing boronate esters. Heteroatom Chem 2009. [DOI: 10.1002/hc.20512] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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