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Paolino M, de Candia M, Purgatorio R, Catto M, Saletti M, Tondo AR, Nicolotti O, Cappelli A, Brizzi A, Mugnaini C, Corelli F, Altomare CD. Investigation on Novel E/Z 2-Benzylideneindan-1-One-Based Photoswitches with AChE and MAO-B Dual Inhibitory Activity. Molecules 2023; 28:5857. [PMID: 37570828 PMCID: PMC10421270 DOI: 10.3390/molecules28155857] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2023] [Revised: 07/22/2023] [Accepted: 07/26/2023] [Indexed: 08/13/2023] Open
Abstract
The multitarget therapeutic strategy, as opposed to the more traditional 'one disease-one target-one drug', may hold promise in treating multifactorial neurodegenerative syndromes, such as Alzheimer's disease (AD) and related dementias. Recently, combining a photopharmacology approach with the multitarget-directed ligand (MTDL) design strategy, we disclosed a novel donepezil-like compound, namely 2-(4-((diethylamino)methyl)benzylidene)-5-methoxy-2,3-dihydro-1H-inden-1-one (1a), which in the E isomeric form (and about tenfold less in the UV-B photo-induced isomer Z) showed the best activity as dual inhibitor of the AD-related targets acetylcholinesterase (AChE) and monoamine oxidase B (MAO-B). Herein, we investigated further photoisomerizable 2-benzylideneindan-1-one analogs 1b-h with the unconjugated tertiary amino moiety bearing alkyls of different bulkiness and lipophilicity. For each compound, the thermal stable E geometric isomer, along with the E/Z mixture as produced by UV-B light irradiation in the photostationary state (PSS, 75% Z), was investigated for the inhibition of human ChEs and MAOs. The pure E-isomer of the N-benzyl(ethyl)amino analog 1h achieved low nanomolar AChE and high nanomolar MAO-B inhibition potencies (IC50s 39 and 355 nM, respectively), whereas photoisomerization to the Z isomer (75% Z in the PSS mixture) resulted in a decrease (about 30%) of AChE inhibitory potency, and not in the MAO-B one. Molecular docking studies were performed to rationalize the different E/Z selectivity of 1h toward the two target enzymes.
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Affiliation(s)
- Marco Paolino
- Department of Biotechnology, Chemistry and Pharmacy, University of Siena, Via A. Moro 2, I-53100 Siena, Italy; (M.P.); (M.S.); (A.C.); (A.B.); (C.M.); (F.C.)
| | - Modesto de Candia
- Department of Pharmacy-Pharmaceutical Sciences, University of Bari Aldo Moro, Via E. Orabona 4, I-70125 Bari, Italy; (M.d.C.); (R.P.); (M.C.); (A.R.T.); (O.N.)
| | - Rosa Purgatorio
- Department of Pharmacy-Pharmaceutical Sciences, University of Bari Aldo Moro, Via E. Orabona 4, I-70125 Bari, Italy; (M.d.C.); (R.P.); (M.C.); (A.R.T.); (O.N.)
| | - Marco Catto
- Department of Pharmacy-Pharmaceutical Sciences, University of Bari Aldo Moro, Via E. Orabona 4, I-70125 Bari, Italy; (M.d.C.); (R.P.); (M.C.); (A.R.T.); (O.N.)
| | - Mario Saletti
- Department of Biotechnology, Chemistry and Pharmacy, University of Siena, Via A. Moro 2, I-53100 Siena, Italy; (M.P.); (M.S.); (A.C.); (A.B.); (C.M.); (F.C.)
| | - Anna Rita Tondo
- Department of Pharmacy-Pharmaceutical Sciences, University of Bari Aldo Moro, Via E. Orabona 4, I-70125 Bari, Italy; (M.d.C.); (R.P.); (M.C.); (A.R.T.); (O.N.)
| | - Orazio Nicolotti
- Department of Pharmacy-Pharmaceutical Sciences, University of Bari Aldo Moro, Via E. Orabona 4, I-70125 Bari, Italy; (M.d.C.); (R.P.); (M.C.); (A.R.T.); (O.N.)
| | - Andrea Cappelli
- Department of Biotechnology, Chemistry and Pharmacy, University of Siena, Via A. Moro 2, I-53100 Siena, Italy; (M.P.); (M.S.); (A.C.); (A.B.); (C.M.); (F.C.)
| | - Antonella Brizzi
- Department of Biotechnology, Chemistry and Pharmacy, University of Siena, Via A. Moro 2, I-53100 Siena, Italy; (M.P.); (M.S.); (A.C.); (A.B.); (C.M.); (F.C.)
| | - Claudia Mugnaini
- Department of Biotechnology, Chemistry and Pharmacy, University of Siena, Via A. Moro 2, I-53100 Siena, Italy; (M.P.); (M.S.); (A.C.); (A.B.); (C.M.); (F.C.)
| | - Federico Corelli
- Department of Biotechnology, Chemistry and Pharmacy, University of Siena, Via A. Moro 2, I-53100 Siena, Italy; (M.P.); (M.S.); (A.C.); (A.B.); (C.M.); (F.C.)
| | - Cosimo D. Altomare
- Department of Pharmacy-Pharmaceutical Sciences, University of Bari Aldo Moro, Via E. Orabona 4, I-70125 Bari, Italy; (M.d.C.); (R.P.); (M.C.); (A.R.T.); (O.N.)
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Adilkhanova A, Frolova VF, Yessengazin A, Öztopçu Ö, Gudun KA, Segizbayev M, Matsokin NA, Dmitrienko A, Pilkington M, Khalimon AY. Synthesis and catalytic performance of nickel phosphinite pincer complexes in deoxygenative hydroboration of amides. Dalton Trans 2023; 52:2872-2886. [PMID: 36762562 DOI: 10.1039/d2dt03801c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/10/2023]
Abstract
A series of imino-POCNR, amino-POCNR2, and bis(phosphinite) POCOP pincer complexes of Ni(II) were prepared and tested in catalytic deoxygenative hydroboration of amides with HBPin to the corresponding amines. In contrast to the deoxygenative hydrosilylation approach, primarily developed for tertiary amides, superior reactivity in Ni-catalyzed deoxygenative hydroboration was demonstrated for secondary carboxamides. The bis(phosphinite) hydride complex (POCOP)NiH proved the most active in these reactions, tolerating potentially reducible functionalities such as internal alkenes, esters, nitriles, heteroaromatic compounds, and tertiary amides. Preferable hydroboration of secondary amides was also demonstrated in the presence of primary amide functionalities. The reactions were conducted at 60-80 °C, representing a rare example of a base-metal catalytic system for selective deoxygenation of secondary amides to the corresponding amines under mild conditions. In contrast to secondary amides, deoxygenative hydroboration of primary amides was demonstrated using an iminophosphinite pre-catalyst (POCNDmp)Ni(CH2TMS) (Dmp = 2,6-Me2C6H3). Deoxygenation reactions were suggested to proceed via a direct C-O bond cleavage mechanism, which is triggered by dehydrogenative N-borylation to access more electrophilic N-borylamides amenable to the addition of HBPin to the carbonyl group.
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Affiliation(s)
- Aziza Adilkhanova
- Department of Chemistry, School of Sciences and Humanities, Nazarbayev University, 53 Kabanbay Batyr Avenue, Astana 010000, Kazakhstan. .,School of Mining and Geosciences, Nazarbayev University, 53 Kabanbay Batyr Avenue, Astana 010000, Kazakhstan
| | - Valeriya F Frolova
- Department of Chemistry, School of Sciences and Humanities, Nazarbayev University, 53 Kabanbay Batyr Avenue, Astana 010000, Kazakhstan.
| | - Azamat Yessengazin
- Department of Chemistry, School of Sciences and Humanities, Nazarbayev University, 53 Kabanbay Batyr Avenue, Astana 010000, Kazakhstan.
| | - Özgür Öztopçu
- Department of Chemistry, School of Sciences and Humanities, Nazarbayev University, 53 Kabanbay Batyr Avenue, Astana 010000, Kazakhstan.
| | - Kristina A Gudun
- Department of Chemistry, School of Sciences and Humanities, Nazarbayev University, 53 Kabanbay Batyr Avenue, Astana 010000, Kazakhstan.
| | - Medet Segizbayev
- Department of Chemistry, Brock University, 1812 Sir Isaac Brock Way, St Catharines, Ontario L2S 3A1, Canada
| | - Nikita A Matsokin
- Department of Chemistry, Lomonosov Moscow State University, Leninskie Gory 1-3, Moscow 119991, Russia
| | - Anton Dmitrienko
- Department of Chemistry, Brock University, 1812 Sir Isaac Brock Way, St Catharines, Ontario L2S 3A1, Canada.,Department of Chemistry and Biochemistry, University of Windsor, 401 Sunset Avenue, Windsor, Ontario N9B 3P4, Canada
| | - Melanie Pilkington
- Department of Chemistry, Brock University, 1812 Sir Isaac Brock Way, St Catharines, Ontario L2S 3A1, Canada
| | - Andrey Y Khalimon
- Department of Chemistry, School of Sciences and Humanities, Nazarbayev University, 53 Kabanbay Batyr Avenue, Astana 010000, Kazakhstan.
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Bano K, Sharma J, Jain A, Tsurugi H, Panda TK. A binuclear aluminium complex as a single competent catalyst for efficient synthesis of urea, biuret, isourea, isothiourea, phosphorylguanidine, and quinazolinones. RSC Adv 2023; 13:3020-3032. [PMID: 36756451 PMCID: PMC9850453 DOI: 10.1039/d2ra07714k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2022] [Accepted: 12/22/2022] [Indexed: 01/21/2023] Open
Abstract
The synthesis and characterisation of two mononuclear aluminium alkyl complexes with the general composition [Al(Me)2{Ph2P(E)N(CH2)2N(CH2CH2)2O}] (E = Se (2a); S (2b)), and two binuclear aluminium complexes, [Al(Me)2{Ph2P-(E)N(CH2)2N(CH2CH2)2O}(AlMe3)] (E = Se (3a) and S (3b)), are described. The binuclear aluminium alkyl complex 3a proved to be a proficient catalyst for the addition of simple nucleophiles to heterocumulenes, leading to the synthesis of a variety of products such as urea, biuret, isourea, isothiourea, phosphorylguanidine, and quinazolinone derivatives, in contrast to its mononuclear analogues. Complex 3a is the first example of a single competent catalyst, which is also low-cost and eco-friendly and derived from a main-group metal, under solvent-free conditions either at room temperature or mild temperatures. Complex 3a possessed a wide functional group tolerance including heteroatoms, yielding the corresponding insertion products in good quantities and with high selectivity.
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Affiliation(s)
- Kulsum Bano
- Department of Chemistry, Indian Institute of Technology Kandi-502 285, Sangareddy Hyderabad Telangana India https://sites.google.com/site/tkpandagroup/home
| | - Jyoti Sharma
- Department of Chemistry, Indian Institute of Technology Kandi-502 285, Sangareddy Hyderabad Telangana India https://sites.google.com/site/tkpandagroup/home
| | - Archana Jain
- Department of Physics and Chemistry, Mahatma Gandhi Institute of Technology Gandipet-500 075 Hyderabad Telangana India
| | - Hayato Tsurugi
- Department of Chemistry, Graduate School of Engineering Science, Osaka University Toyonaka Osaka 560-8531 Japan
| | - Tarun K. Panda
- Department of Chemistry, Indian Institute of TechnologyKandi-502 285, SangareddyHyderabadTelanganaIndiahttps://sites.google.com/site/tkpandagroup/home
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Lanthanide-oxo clusters for efficient catalytic reduction of carboxamides. Sci China Chem 2023. [DOI: 10.1007/s11426-022-1493-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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5
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Thomas SP, Bage AD, Nicholson K, Hunt TA, Langer T. Transborylation-Enabled Boron Catalysis. SYNTHESIS-STUTTGART 2022. [DOI: 10.1055/s-0040-1720046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
AbstractThis review highlights transborylation (controlled boron-boron exchange) and its applications as a turnover strategy in boron-catalysed methodologies. Catalytic applications of B–C, B–O, B–N, B–F, B–S, and B–Se transborylations are discussed in the context of transborylation-enabled catalysis, across a wide range of organic transformations including hydroboration, C–C bond formation, C–H borylation, chemoselective reduction, and asymmetric reduction.1 Introduction2 B–C Transborylation3 B–O Transborylation4 B–N Transborylation5 B–F Transborylation6 B–S Transborylation7 Conclusion
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Affiliation(s)
| | - Andrew D. Bage
- EaStCHEM School of Chemistry, The University of Edinburgh
| | | | | | - Thomas Langer
- Pharmaceutical Technology & Development, Chemical Development U.K., AstraZeneca
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Sai Kumar G, Bhattacharjee J, Kumari K, Moorthy S, Bandyopadhyay A, Kumar Singh S, Panda TK. Hydroboration of Nitriles, Esters, and Amides Catalyzed by Simple Neosilyllithium. Polyhedron 2022. [DOI: 10.1016/j.poly.2022.115784] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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7
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Bano K, Kisan DA, Panda TK. Facile Synthesis of Benzimidazole and Benzothiazole Compounds Mediated by Zinc Precatalyst Supported by Iminopyrrole‐Morpholine Ligand. Eur J Inorg Chem 2022. [DOI: 10.1002/ejic.202200023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Kulsum Bano
- IITH: Indian Institute of Technology Hyderabad Chemistry KandiSangareddy 502285 INDIA
| | - Devadkar Ajitrao Kisan
- IITH: Indian Institute of Technology Hyderabad Chemistry KandiSangareddy 502285 Hyderabad INDIA
| | - Tarun K. Panda
- IITH: Indian Institute of Technology Hyderabad Chemistry KandiSangareddy 502285 Hyderabad INDIA
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Bhattacharjee J, Bockfeld D, Tamm M. N-Heterocyclic Carbene-Phosphinidenide Complexes as Hydroboration Catalysts. J Org Chem 2022; 87:1098-1109. [PMID: 35007063 DOI: 10.1021/acs.joc.1c02377] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The reactions of the N-heterocyclic carbene-phosphinidene adducts (NHC)PSiMe3 and (NHC)PH with the dinuclear ruthenium and osmium complexes [(η6-p-cymene)MCl2]2 (M = Ru, Os) afforded the half-sandwich complexes [(η6-p-cymene){(NHC)P}MCl] and [(η6-p-cymene){(NHC)PH}MCl2] with two- and three-legged piano-stool geometries, respectively (NHC = IDipp, IMes; IDipp = 1,3-bis(2,6-diisopropylphenyl)imidazolin-2-ylidene; IMes = 1,3-bis(2,4,6-trimethylphenyl)imidazolin-2-ylidene). The complexes were initially tested as precatalysts for the hydroboration of benzonitrile, and the most active species, the ruthenium complex [(η6-p-cymene){(IMes)P}RuCl], was further used for the efficient hydroboration of a wide range (ca. 50 substrates) of nitriles, carboxylic esters, and carboxamides in neat pinacolborane (HBpin) under comparatively mild reaction conditions (60-80 °C, 3-5 mol % catalyst loading). Preliminary mechanistic and kinetic studies are reported, and stoichiometric reactions with HBpin indicate the initial formation of the monohydride complex [(η6-p-cymene){(IMes)P}RuH] as the putative catalytically active species.
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Affiliation(s)
- Jayeeta Bhattacharjee
- Institut für Anorganische und Analytische Chemie, Technische Universität Braunschweig, Hagenring 30, 38106 Braunschweig, Germany
| | - Dirk Bockfeld
- Institut für Anorganische und Analytische Chemie, Technische Universität Braunschweig, Hagenring 30, 38106 Braunschweig, Germany
| | - Matthias Tamm
- Institut für Anorganische und Analytische Chemie, Technische Universität Braunschweig, Hagenring 30, 38106 Braunschweig, Germany
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Panda TK, Kumar R, Rawal P, Banerjee I, Nayek HP, Gupta P, Panda TK. Catalytic Hydroboration and Reductive Amination of Carbonyl Compounds by HBpin using a Zinc Promoter. Chem Asian J 2022; 17:e202200013. [PMID: 35020275 DOI: 10.1002/asia.202200013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2022] [Indexed: 11/10/2022]
Abstract
In this paper, the chemoselective hydroboration of aldehydes and ketones, catalyzed by Zinc(II) complexes [ k 2 -(PyCH=NR)ZnX 2 ] [R = CPh 3 , X = Cl ( 1 ) and R = Dipp (2,6-diisoropylphenyl) and X = I ( 2 )], in the presence of pinacolborane (HBpin) in ambient temperature and solvent-free conditions, which produced corresponding boronate esters in high yield, is reported. Zinc metal complexes 1 and 2 were derived in 80-90% yield from the reaction of iminopyridine [PyCH=NR] with anhydrous zinc dichloride in dichloromethane at room temperature. The solid-state structures of both zinc complexes were confirmed using X-ray crystallography. Zinc complex 1 was also used as a competent pre-catalyst in the reductive amination of carbonyl compounds with HBpin under mild and solvent-free conditions to afford a high yield (up to 97%) of the corresponding secondary amines. The wider substrate scope of both reactions was explored. Catalytic protocols using zinc as a pre-catalyst demonstrated an atom-economic and green method with diverse substrates bearing excellent functional group tolerance. Computational studies established a plausible mechanism for catalytic hydroboration.
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Affiliation(s)
- Tarun K Panda
- IITH: Indian Institute of Technology Hyderabad, Chemistry, Kandi, Sangareddy, 502285, Hyderabad, INDIA
| | - Ravi Kumar
- IITH: Indian Institute of Technology Hyderabad, Chemistry, Kandi, Sangareddy, 502285, Hyderabad, INDIA
| | - Parveen Rawal
- IIT Roorkee: Indian Institute of Technology Roorkee, Chemistry, Roorkee, 247667, Roorkee, INDIA
| | - Indrani Banerjee
- IITH: Indian Institute of Technology Hyderabad, Chemistry, Kandi, Sangareddy, 502285, Hyderabad, INDIA
| | - Hari Pada Nayek
- IIT (ISM): Indian Institute of Technology, Chemistry, Dhanbad, 826004, Dhanbad, INDIA
| | - Puneet Gupta
- IIT Roorkee: Indian Institute of Technology Roorkee, Chemistry, Roorkee, 247667, Roorkee, INDIA
| | - Tarun K Panda
- IITH: Indian Institute of Technology Hyderabad, Chemistry, Kandi, Sangareddy, 502285, Hyderabad, INDIA
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Affiliation(s)
- Congjian Ni
- Beijing Institute of Technology School of chemistry CHINA
| | - Xiaoli Ma
- Beijing Institute of Technology School of Chemistry and Chemical Engineering CHINA
| | - Zhi Yang
- Beijing Institute of Technology School of Chemistry and Chemical Engineering CHINA
| | - Herbert W. Roesky
- Georg-August-Universitat Gottingen Department of Chemistry Tammannstrasse 4 37077 Göttingen GERMANY
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Panda TK, Bhattacharjee J, Rawal P, Das S, Harinath A, Gupta P. Highly efficient Ti-catalyst for deoxygenative reduction of esters at ambient conditions: experimental and mechanistic insights from DFT Study. Dalton Trans 2022; 51:5859-5867. [DOI: 10.1039/d2dt00076h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In this paper, we report the synthesis of dianionic amidophosphineborane–supported titanium chloride [{Ph2P(BH3)N}2C6H4}TiCl2] (1) and TiIV alkyl complex [{Ph2P(BH3)N}2C6H4}Ti(CH2SiMe3)2] (2) using salt metathesis reaction. The TiIV complex 1 was obtained...
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Zhang F, Guo C, Gong M, Xie H, Luo Y. Hydroborative reduction of amides to amines mediated by La(CH 2C 6H 4NMe 2- o) 3. NEW J CHEM 2022. [DOI: 10.1039/d1nj04996h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
La(CH2C6H4NMe2-o)3/HBpin is an efficient catalytic system for the deoxygenative reduction of primary, secondary and tertiary amides to amines.
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Affiliation(s)
- Fangcao Zhang
- School of Materials Science and Chemical Engineering, Ningbo University, Ningbo 315211, P. R. China
| | - Chenjun Guo
- School of Materials Science and Chemical Engineering, Ningbo University, Ningbo 315211, P. R. China
| | - Mingliang Gong
- The Barstow School Ningbo Campus, Ningbo 315201, P. R. China
| | - Hongzhen Xie
- School of Materials Science and Chemical Engineering, Ningbo University, Ningbo 315211, P. R. China
| | - Yunjie Luo
- School of Materials Science and Chemical Engineering, Ningbo University, Ningbo 315211, P. R. China
- Key Laboratory of Advanced Mass Spectrometry and Molecular Analysis of Zhejiang Province, Ningbo 315211, P. R. China
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Khalimon AY. Deoxygenative hydroboration of carboxamides: a versatile and selective synthetic approach to amines. Dalton Trans 2021; 50:17455-17466. [PMID: 34787155 DOI: 10.1039/d1dt03516a] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Deoxygenative reduction of amides is considered as an attractive method for preparation of synthetically valuable amines. However, the low electrophilicity of the amide carbonyl group, high thermodynamic stability and kinetic inertness of the amides make their reduction a challenging task. Until recently, most efforts for catalytic deoxygenation of amides to amines were concentrated on hydrogenation and hydrosilylation approaches, which mainly employed precious metal catalysts and often required harsh reaction conditions and showed insufficient selectivities. Moreover, these reactions are mostly limited to secondary and tertiary amides, whereas direct reduction of primary amides to primary amines remained arduous. In contrast, deoxygenative hydroboration of amides, although it appeared less then a decade ago, has already proved advantageous in terms of the amide scope, reaction conditions and selectivity of transformations. This article provides an overview of the developments in hydroboration of amides, focusing on mechanistic aspects of these transformations and advantages of hydroboration compared to hydrogenation and hydrosilylation approaches.
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Affiliation(s)
- Andrey Y Khalimon
- Department of Chemistry, School of Sciences and Humanities, Nazarbayev University, 53 Kabanbay Batyr Avenue, Nur-Sultan 010000, Kazakhstan.
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Yi J, Kim HT, Jaladi AK, An DK. Deoxygenative hydroboration of primary, secondary, and tertiary amides: Catalyst‐free synthesis of various substituted amines. B KOREAN CHEM SOC 2021. [DOI: 10.1002/bkcs.12438] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Jaeeun Yi
- Department of Chemistry Institute for Molecular Science and Fusion Technology, Kangwon National University Chuncheon Republic of Korea
| | - Hyun Tae Kim
- Department of Chemistry Institute for Molecular Science and Fusion Technology, Kangwon National University Chuncheon Republic of Korea
| | - Ashok Kumar Jaladi
- Department of Chemistry Institute for Molecular Science and Fusion Technology, Kangwon National University Chuncheon Republic of Korea
| | - Duk Keun An
- Department of Chemistry Institute for Molecular Science and Fusion Technology, Kangwon National University Chuncheon Republic of Korea
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Han B, Zhang J, Jiao H, Wu L. Zirconium-hydride-catalyzed site-selective hydroboration of amides for the synthesis of amines: Mechanism, scope, and application. CHINESE JOURNAL OF CATALYSIS 2021. [DOI: 10.1016/s1872-2067(21)63853-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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Kumar R, Bisai MK, Jain S, Vanka K, Sen SS. Deoxygenative hydroboration of primary and secondary amides: a catalyst-free and solvent-free approach. Chem Commun (Camb) 2021; 57:10596-10599. [PMID: 34568884 DOI: 10.1039/d1cc04148g] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In contrast to the recent reports on catalytic hydroboration of amides to amines with pinacolborane (HBpin), a simple catalyst-free and solvent-free method for the hydroboration of a variety of amides has been realized. To get the mechanistic insights, DFT calculations have been performed.
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Affiliation(s)
- Rohit Kumar
- Inorganic Chemistry and Catalysis Division, CSIR-National Chemical Laboratory, Dr Homi Bhabha Road, Pashan, Pune 411008, India. .,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad-201002, India
| | - Milan Kumar Bisai
- Inorganic Chemistry and Catalysis Division, CSIR-National Chemical Laboratory, Dr Homi Bhabha Road, Pashan, Pune 411008, India. .,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad-201002, India
| | - Shailja Jain
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad-201002, India.,Physical and Material Chemistry Division, CSIR-National Chemical Laboratory, Dr Homi Bhabha Road, Pashan, Pune 411008, India.
| | - Kumar Vanka
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad-201002, India.,Physical and Material Chemistry Division, CSIR-National Chemical Laboratory, Dr Homi Bhabha Road, Pashan, Pune 411008, India.
| | - Sakya S Sen
- Inorganic Chemistry and Catalysis Division, CSIR-National Chemical Laboratory, Dr Homi Bhabha Road, Pashan, Pune 411008, India. .,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad-201002, India
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Pandey P, Bera JK. Hydrosilylative reduction of primary amides to primary amines catalyzed by a terminal [Ni-OH] complex. Chem Commun (Camb) 2021; 57:9204-9207. [PMID: 34519312 DOI: 10.1039/d1cc03537a] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A terminal [Ni-OH] complex 1, supported by triflamide-functionalized NHC ligands, catalyzes the hydrosilylative reduction of a range of primary amides into primary amines in good to excellent yields under base-free conditions with key functional group tolerance. Catalyst 1 is also effective for the reduction of a variety of tertiary and secondary amides. In contrast to literature reports, the reactivity of 1 towards amide reduction follows an inverse trend, i.e., 1° amide > 3° amide > 2° amide. The reaction does not follow a usual dehydration pathway.
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Affiliation(s)
- Pragati Pandey
- Department of Chemistry and Center for Environmental Science and Engineering, Indian Institute of Technology Kanpur, Kanpur 208016, India.
| | - Jitendra K Bera
- Department of Chemistry and Center for Environmental Science and Engineering, Indian Institute of Technology Kanpur, Kanpur 208016, India.
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18
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Guo C, Zhang F, Yu C, Luo Y. Reduction of Amides to Amines with Pinacolborane Catalyzed by Heterogeneous Lanthanum Catalyst La(CH 2C 6H 4NMe 2- o) 3@SBA-15. Inorg Chem 2021; 60:13122-13135. [PMID: 34357749 DOI: 10.1021/acs.inorgchem.1c01531] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Hydroboration of amides is a useful synthetic strategy to access the corresponding amines. In this contribution, it was found that the supported lanthanum benzyl material La(CH2C6H4NMe2-o)3@SBA-15 was highly active for the hydroboration of primary, secondary, and tertiary amides to amines with pinacolborane. These reactions selectively produced target amines and showed good tolerance for functional groups such as -NO2, -halogen, and -CN, as well as heteroatoms such as S and O. This reduction procedure exhibited the recyclable and reusable property of heterogeneous catalysts and was applicable to gram-scale synthesis. The reaction mechanisms were proposed based on some control experiments and the previous literature. This is the first example of hydroborative reduction of amides to amines mediated by heterogeneous catalysts.
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Affiliation(s)
- Chenjun Guo
- School of Materials Science and Chemical Engineering, Ningbo University, Ningbo 315211, P. R. China
| | - Fangcao Zhang
- School of Materials Science and Chemical Engineering, Ningbo University, Ningbo 315211, P. R. China
| | - Chong Yu
- School of Materials Science and Chemical Engineering, Ningbo University, Ningbo 315211, P. R. China
| | - Yunjie Luo
- School of Materials Science and Chemical Engineering, Ningbo University, Ningbo 315211, P. R. China.,Key Laboratory of Advanced Mass Spectrometry and Molecular Analysis of Zhejiang Province, Ningbo 315211, P. R. China
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19
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Yu C, Guo C, Jiang L, Gong M, Luo Y. Deoxygenation of Primary Amides to Amines with Pinacolborane Catalyzed by Ca[N(SiMe3)2]2(THF)2. Organometallics 2021. [DOI: 10.1021/acs.organomet.1c00120] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Chong Yu
- School of Materials Science and Chemical Engineering, Ningbo University, Ningbo 315211, P. R. China
| | - Chenjun Guo
- School of Materials Science and Chemical Engineering, Ningbo University, Ningbo 315211, P. R. China
| | - Linhong Jiang
- School of Materials Science and Chemical Engineering, Ningbo University, Ningbo 315211, P. R. China
| | - Mingliang Gong
- The Barstow School Ningbo Campus, Ningbo 315201, P. R. China
| | - Yunjie Luo
- School of Materials Science and Chemical Engineering, Ningbo University, Ningbo 315211, P. R. China
- Key Laboratory of Advanced Mass Spectrometry and Molecular Analysis of Zhejiang Province, Ningbo 315211, P. R. China
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20
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Bisai MK, Gour K, Das T, Vanka K, Sen SS. Lithium compound catalyzed deoxygenative hydroboration of primary, secondary and tertiary amides. Dalton Trans 2021; 50:2354-2358. [PMID: 33570073 DOI: 10.1039/d1dt00364j] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
A selective and efficient route for the deoxygenative reduction of primary to tertiary amides to corresponding amines has been achieved with pinacolborane (HBpin) using simple and readily accessible 2,6-di-tert-butyl phenolate lithium·THF (1a) as a catalyst. Both experimental and DFT studies provide mechanistic insight.
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Affiliation(s)
- Milan Kumar Bisai
- Inorganic Chemistry and Catalysis Division, CSIR-National Chemical Laboratory, Dr Homi Bhabha Road, Pashan, Pune 411008, India. and Academy of Scientific and Innovative Research (AcSIR), Ghaziabad-201002, India
| | - Kritika Gour
- Inorganic Chemistry and Catalysis Division, CSIR-National Chemical Laboratory, Dr Homi Bhabha Road, Pashan, Pune 411008, India. and Academy of Scientific and Innovative Research (AcSIR), Ghaziabad-201002, India
| | - Tamal Das
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad-201002, India and Physical and Material Chemistry Division, CSIR-National Chemical Laboratory, Dr Homi Bhabha Road, Pashan, Pune 411008, India
| | - Kumar Vanka
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad-201002, India and Physical and Material Chemistry Division, CSIR-National Chemical Laboratory, Dr Homi Bhabha Road, Pashan, Pune 411008, India
| | - Sakya S Sen
- Inorganic Chemistry and Catalysis Division, CSIR-National Chemical Laboratory, Dr Homi Bhabha Road, Pashan, Pune 411008, India. and Academy of Scientific and Innovative Research (AcSIR), Ghaziabad-201002, India
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21
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Dicken RD, Motta A, Marks TJ. Homoleptic Lanthanide Amide Catalysts for Organic Synthesis: Experiment and Theory. ACS Catal 2021. [DOI: 10.1021/acscatal.0c04882] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Rachel D. Dicken
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208-3113, United States
| | - Alessandro Motta
- Dipartimento di Scienze Chimiche, Università di Roma “La Sapienza” and INSTM, UdR Roma, Piazzale Aldo Moro 5, I-00185 Roma, Italy
| | - Tobin J. Marks
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208-3113, United States
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22
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Das S, Kumar R, Devadkar A, Panda TK. Zinc Complexes ofβ‐Ketoiminato Ligands as Efficient Catalysts for the Synthesis of α‐Amino Nitriles via Strecker Reaction. ASIAN J ORG CHEM 2020. [DOI: 10.1002/ajoc.202000278] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Suman Das
- Department of ChemistryIndian Institute of Technology Hyderabad Kandi 502285, Sangareddy Telangana India
| | - Ravi Kumar
- Department of ChemistryIndian Institute of Technology Hyderabad Kandi 502285, Sangareddy Telangana India
| | - Ajitrao Devadkar
- Department of ChemistryIndian Institute of Technology Hyderabad Kandi 502285, Sangareddy Telangana India
| | - Tarun K. Panda
- Department of ChemistryIndian Institute of Technology Hyderabad Kandi 502285, Sangareddy Telangana India
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23
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Sandeep, Venugopalan P, Kumar A. Metal Free, Direct and Selective Deoxygenation of α-Hydroxy Carbonyl Compounds: Access to α,α-Diaryl Carbonyl Compounds. European J Org Chem 2020. [DOI: 10.1002/ejoc.202000142] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Sandeep
- Department of Applied Sciences; University Institute of Engineering and Technology; Panjab University; 160014 Chandigarh India
- Department of Chemistry; University Institute of Engineering and Technology; Panjab University; 160014 Chandigarh India
| | - Paloth Venugopalan
- Department of Chemistry; University Institute of Engineering and Technology; Panjab University; 160014 Chandigarh India
| | - Anil Kumar
- Department of Applied Sciences; University Institute of Engineering and Technology; Panjab University; 160014 Chandigarh India
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24
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Barger CJ, Dicken RD, Weidner VL, Motta A, Lohr TL, Marks TJ. La[N(SiMe3)2]3-Catalyzed Deoxygenative Reduction of Amides with Pinacolborane. Scope and Mechanism. J Am Chem Soc 2020; 142:8019-8028. [DOI: 10.1021/jacs.0c02446] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Christopher J. Barger
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208-3113, United States
| | - Rachel D. Dicken
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208-3113, United States
| | - Victoria L. Weidner
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208-3113, United States
| | - Alessandro Motta
- Dipartimento di Scienze Chimiche, Università di Roma “La Sapienza” and INSTM, UdR Roma, Piazzale Aldo Moro 5, Roma I-00185, Italy
| | - Tracy L. Lohr
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208-3113, United States
| | - Tobin J. Marks
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208-3113, United States
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25
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Ye P, Shao Y, Ye X, Zhang F, Li R, Sun J, Xu B, Chen J. Homoleptic Bis(trimethylsilyl)amides of Yttrium Complexes Catalyzed Hydroboration Reduction of Amides to Amines. Org Lett 2020; 22:1306-1310. [PMID: 32013446 DOI: 10.1021/acs.orglett.9b04606] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Homoleptic lanthanide complex Y[N(TMS)2]3 is an efficient homogeneous catalyst for the hydroboration reduction of secondary amides and tertiary amides to corresponding amines. A series of amides containing different functional groups such as cyano, nitro, and vinyl groups were found to be well-tolerated. This transformation has also been nicely applied to the synthesis of indoles and piribedil. Detailed isotopic labeling experiments, control experiments, and kinetic studies provided cumulative evidence to elucidate the reaction mechanism.
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Affiliation(s)
- Pengqing Ye
- College of Chemistry & Materials Engineering , Wenzhou University , Wenzhou , 325035 , P.R. China
| | - Yinlin Shao
- College of Chemistry & Materials Engineering , Wenzhou University , Wenzhou , 325035 , P.R. China.,Institute of New Materials & Industrial Technology , Wenzhou University , Wenzhou , P.R. China
| | - Xuanzeng Ye
- College of Chemistry & Materials Engineering , Wenzhou University , Wenzhou , 325035 , P.R. China
| | - Fangjun Zhang
- School of Pharmaceutical Sciences , Wenzhou Medical University , Wenzhou 325035 , P.R. China
| | - Renhao Li
- School of Pharmaceutical Sciences , Wenzhou Medical University , Wenzhou 325035 , P.R. China
| | - Jiani Sun
- College of Chemistry & Materials Engineering , Wenzhou University , Wenzhou , 325035 , P.R. China
| | - Beihang Xu
- College of Chemistry & Materials Engineering , Wenzhou University , Wenzhou , 325035 , P.R. China
| | - Jiuxi Chen
- College of Chemistry & Materials Engineering , Wenzhou University , Wenzhou , 325035 , P.R. China
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26
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Kumar GS, Harinath A, Narvariya R, Panda TK. Homoleptic Zinc‐Catalyzed Hydroboration of Aldehydes and Ketones in the Presence of HBpin. Eur J Inorg Chem 2020. [DOI: 10.1002/ejic.201901276] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Gobbilla Sai Kumar
- Department of Chemistry Indian Institute of Technology Hyderabad, Kandi ‐502 285 Sangareddy Telangana India
| | - Adimulam Harinath
- Department of Chemistry Indian Institute of Technology Hyderabad, Kandi ‐502 285 Sangareddy Telangana India
| | - Rajrani Narvariya
- Department of Chemistry Indian Institute of Technology Hyderabad, Kandi ‐502 285 Sangareddy Telangana India
| | - Tarun K. Panda
- Department of Chemistry Indian Institute of Technology Hyderabad, Kandi ‐502 285 Sangareddy Telangana India
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27
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Yao W, Wang J, Zhong A, Wang S, Shao Y. Transition-metal-free catalytic hydroboration reduction of amides to amines. Org Chem Front 2020. [DOI: 10.1039/d0qo01092h] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
The selective catalytic reduction of amides to value-added amine products is a desirable but challenging transformation.
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Affiliation(s)
- Wubing Yao
- School of Pharmaceutical and Materials Engineering
- Taizhou University
- Jiaojiang 318000
- P.R. China
- Department of Chemistry
| | - Jiali Wang
- School of Pharmaceutical and Materials Engineering
- Taizhou University
- Jiaojiang 318000
- P.R. China
- Department of Chemistry
| | - Aiguo Zhong
- School of Pharmaceutical and Materials Engineering
- Taizhou University
- Jiaojiang 318000
- P.R. China
| | - Shiliang Wang
- School of Pharmaceutical and Materials Engineering
- Taizhou University
- Jiaojiang 318000
- P.R. China
| | - Yinlin Shao
- College of Chemistry & Materials Engineering and Institute of New Materials & Industrial Technology
- Wenzhou University
- Wenzhou 325035
- P.R. China
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