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Short-chain aurachin D derivatives are selective inhibitors of E. coli cytochrome bd-I and bd-II oxidases. Sci Rep 2021; 11:23852. [PMID: 34903826 PMCID: PMC8668966 DOI: 10.1038/s41598-021-03288-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2021] [Accepted: 12/01/2021] [Indexed: 11/12/2022] Open
Abstract
Cytochrome bd-type oxidases play a crucial role for survival of pathogenic bacteria during infection and proliferation. This role and the fact that there are no homologues in the mitochondrial respiratory chain qualify cytochrome bd as a potential antimicrobial target. However, few bd oxidase selective inhibitors have been described so far. In this report, inhibitory effects of Aurachin C (AurC-type) and new Aurachin D (AurD-type) derivatives on oxygen reductase activity of isolated terminal bd-I, bd-II and bo3 oxidases from Escherichia coli were potentiometrically measured using a Clark-type electrode. We synthesized long- (C10, decyl or longer) and short-chain (C4, butyl to C8, octyl) AurD-type compounds and tested this set of molecules towards their selectivity and potency. We confirmed strong inhibition of all three terminal oxidases for AurC-type compounds, whereas the 4(1H)-quinolone scaffold of AurD-type compounds mainly inhibits bd-type oxidases. We assessed a direct effect of chain length on inhibition activity with highest potency and selectivity observed for heptyl AurD-type derivatives. While Aurachin C and Aurachin D are widely considered as selective inhibitors for terminal oxidases, their structure–activity relationship is incompletely understood. This work fills this gap and illustrates how structural differences of Aurachin derivatives determine inhibitory potency and selectivity for bd-type oxidases of E. coli.
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Giomi D, Salvini A, Ceccarelli J, Brandi A. Bromotrimethylsilane as a selective reagent for the synthesis of bromohydrins. RSC Adv 2021; 11:14453-14458. [PMID: 35424012 PMCID: PMC8697681 DOI: 10.1039/d1ra01980e] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2021] [Accepted: 04/01/2021] [Indexed: 11/21/2022] Open
Abstract
Bromotrimethylsilane (TMSBr) is a very efficient reagent in the solvent-free conversion of glycerol into bromohydrins, useful intermediates in the production of fine chemicals. As glycerol is a relevant by-product in biodiesel production, TMSBr has been also tested as a mediator in transesterification in acidic conditions, providing FAME from castor oil in good yields, along with bromohydrins from glycerol. Subsequently the glycerol conversion was optimized and depending on the reaction conditions, glycerol can be selectively converted into α-monobromohydrin (1-MBH) or α,γ-dibromohydrin (1,3-DBH) in very good yields.
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Affiliation(s)
- Donatella Giomi
- Dipartimento di Chimica 'Ugo Schiff', Università degli Studi di Firenze Via della Lastruccia 3-13 I-50019 Sesto Fiorentino (Fi) Italy
- Laboratorio congiunto VALORE, "Valorizzazione di masse algali e sottoprodotti agro-industriali e riduzione di gas serra in atmosfera" Via Morosini snc I-50019 Sesto Fiorentino (Fi) Italy
| | - Antonella Salvini
- Dipartimento di Chimica 'Ugo Schiff', Università degli Studi di Firenze Via della Lastruccia 3-13 I-50019 Sesto Fiorentino (Fi) Italy
- Laboratorio congiunto VALORE, "Valorizzazione di masse algali e sottoprodotti agro-industriali e riduzione di gas serra in atmosfera" Via Morosini snc I-50019 Sesto Fiorentino (Fi) Italy
| | - Jacopo Ceccarelli
- Dipartimento di Chimica 'Ugo Schiff', Università degli Studi di Firenze Via della Lastruccia 3-13 I-50019 Sesto Fiorentino (Fi) Italy
| | - Alberto Brandi
- Dipartimento di Chimica 'Ugo Schiff', Università degli Studi di Firenze Via della Lastruccia 3-13 I-50019 Sesto Fiorentino (Fi) Italy
- Laboratorio congiunto VALORE, "Valorizzazione di masse algali e sottoprodotti agro-industriali e riduzione di gas serra in atmosfera" Via Morosini snc I-50019 Sesto Fiorentino (Fi) Italy
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Yang Y, Li Y, Zhang Z, Zhao Y, Feng W. Metal-free N-formylation of 2-aminophenols using dimethylformamide and CSA. SYNTHETIC COMMUN 2019. [DOI: 10.1080/00397911.2019.1584319] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- Yuanyong Yang
- School of Pharmacy, Guizhou Medical University, Guiyang, China
| | - Yingxian Li
- School of Pharmacy, Guizhou Medical University, Guiyang, China
| | | | - Yonglong Zhao
- School of Pharmacy, Guizhou Medical University, Guiyang, China
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Kazemi S, Mobinikhaledi A, Zendehdel M. NaY zeolite functionalized by sulfamic acid/Cu(OAc) 2 as a new and reusable heterogeneous hybrid catalyst for efficient solvent-free formylation of amines. CHINESE CHEM LETT 2017. [DOI: 10.1016/j.cclet.2017.04.029] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Kamble VT, Bondle GM, Pisal PM. Ultrasonic promoted catalyst-free N-formylation of amines in neutral ionic liquid 1-butyl-3-methylimidazolium tetrafluoroborate. ARAB J CHEM 2017. [DOI: 10.1016/j.arabjc.2013.09.007] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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Kyasa S, Meier R, Pardini RA, Truttmann TK, Kuwata KT, Dussault PH. Synthesis of Ethers via Reaction of Carbanions and Monoperoxyacetals. J Org Chem 2015; 80:12100-14. [PMID: 26560686 PMCID: PMC4687849 DOI: 10.1021/acs.joc.5b02043] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2015] [Indexed: 11/28/2022]
Abstract
Although transfer of electrophilic alkoxyl ("RO+") from organic peroxides to organometallics offers a complement to traditional methods for etherification, application has been limited by constraints associated with peroxide reactivity and stability. We now demonstrate that readily prepared tetrahydropyranyl monoperoxyacetals react with sp(3) and sp(2) organolithium and organomagnesium reagents to furnish moderate to high yields of ethers. The method is successfully applied to the synthesis of alkyl, alkenyl, aryl, heteroaryl, and cyclopropyl ethers, mixed O,O-acetals, and S,S,O-orthoesters. In contrast to reactions of dialkyl and alkyl/silyl peroxides, the displacements of monoperoxyacetals provide no evidence for alkoxy radical intermediates. At the same time, the high yields observed for transfer of primary, secondary, or tertiary alkoxides, the latter involving attack on neopentyl oxygen, are inconsistent with an SN2 mechanism. Theoretical studies suggest a mechanism involving Lewis acid promoted insertion of organometallics into the O-O bond.
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Affiliation(s)
- ShivaKumar Kyasa
- Department
of Chemistry, University of Nebraska-Lincoln, Lincoln, Nebraska 68588-0304, United States
| | - Rebecca
N. Meier
- Department
of Chemistry, Macalester College, Saint Paul, Minnesota 55105, United States
| | - Ruth A. Pardini
- Department
of Chemistry, Macalester College, Saint Paul, Minnesota 55105, United States
| | - Tristan K. Truttmann
- Department
of Chemistry, Macalester College, Saint Paul, Minnesota 55105, United States
| | - Keith T. Kuwata
- Department
of Chemistry, Macalester College, Saint Paul, Minnesota 55105, United States
| | - Patrick H. Dussault
- Department
of Chemistry, University of Nebraska-Lincoln, Lincoln, Nebraska 68588-0304, United States
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Synthesis of aurachin D and isoprenoid analogues from the myxobacterium Stigmatella aurantiaca. Tetrahedron Lett 2013. [DOI: 10.1016/j.tetlet.2013.09.085] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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8
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Synthesis of novel 4′-C-methyl-1′,3′-dioxolane pyrimidine nucleosides and evaluation of its anti-HIV-1 activity. Tetrahedron 2013. [DOI: 10.1016/j.tet.2013.10.075] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Sans A, Gago R, Mingot A, García W, Bosch D, Coll J, Rosell G, Bosch MP, Riba M, Guerrero A. Electrophilic derivatives antagonise pheromone attraction in Cydia pomonella. PEST MANAGEMENT SCIENCE 2013; 69:1280-1290. [PMID: 23554261 DOI: 10.1002/ps.3500] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/14/2012] [Revised: 11/19/2012] [Accepted: 01/29/2013] [Indexed: 06/02/2023]
Abstract
BACKGROUND Pheromone antagonists are good disruptants of the pheromone communication in insects and, as such, have been used in mating disruption experiments. In this study, new non-fluorinated electrophilic keto derivatives structurally related to the pheromone of Cydia pomonella (codlemone) have been synthesised and tested as putative pheromone antagonists. RESULTS Codlemone (1) was prepared in excellent stereoselectivity in a new, iterative approach involving two Horner-Wadsworth-Emmons reactions. Methyl ketone (2), keto ester (3) and diketone (4) were obtained from codlemone in straightforward approaches in good overall yields and excellent stereochemical purity (≥98% E,E). In electrophysiology, only compound 2 displayed inhibition of the antennal response to the pheromone after presaturation of the antennal receptors. Compounds 2 to 4 did not inhibit the pheromone-degrading enzyme responsible for codlemone metabolism, but mixtures of ketone 2 and diketone 4 with codlemone elicited erratic flights on males in a wind tunnel. In the field, blends of either compound (2 or 4) with the pheromone caught significantly fewer males than codlemone alone. CONCLUSION Codlemone and the potential antagonists 2 to 4 have been synthesised in good yields and excellent stereoselectivity. These chemicals behave as pheromone antagonists of the codling moth both in the laboratory and in the field.
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Affiliation(s)
- Albert Sans
- University of Lleida, Centre UdL-IRTA, Lleida, Spain
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Muñoz L, Bosch MP, Batllori L, Rosell G, Bosch D, Guerrero A, Avilla J. Synthesis of allylic trifluoromethyl ketones and their activity as inhibitors of the sex pheromone of the leopard moth, Zeuzera pyrina L. (Lepidoptera: Cossidae). PEST MANAGEMENT SCIENCE 2011; 67:956-964. [PMID: 21394886 DOI: 10.1002/ps.2139] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/19/2010] [Revised: 11/18/2010] [Accepted: 11/23/2010] [Indexed: 05/30/2023]
Abstract
BACKGROUND Trifluoromethyl ketones (TFMKs), structurally related to the pheromones, are good inhibitors of pheromone communication in insects. To determine their activity on Zeuzera pyrina L. (Lepidoptera: Cossidae), a polyphagous pest, the authors have prepared two diunsaturated TFMK analogues of the major (3) and the minor (4) pheromone components, and two monounsaturated ones (5, 6). Their biological activity in electroantennogram (EAG), wind tunnel and field tests is presented. RESULTS The synthetic strategy to obtain the allylic TFMKs 3 and 5 is based on the reactions of diene 10 and 1-octadecene with trifluoroacetaldehyde ethyl hemiacetal, followed by Dess-Martin oxidation of the resulting homoallylic trifluoromethyl alcohols. In EAG, topical application of analogues 3 and 4 on male antennae significantly reduced the pheromone response. In the wind tunnel, compound 4 reduced the number of contacts with the pheromone source. In the field, traps baited with mixtures of pheromone and inhibitors captured significantly fewer males than the pheromone alone. CONCLUSION An efficient synthesis of allylic TFMKs is reported, with good overall yield, regiospecificity and diastereoselectivity. These compounds are good inhibitors of the pheromone in electrophysiology, wind tunnel and field tests. The results show the importance of two unsaturations at positions 2 and 13 of the trifluoroacyl group in the structure of the analogues, the latter being critical for inhibitory activity.
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Affiliation(s)
- Lourdes Muñoz
- Departament de Quimica Biològica i Modelització Molecular (IQAC-CSIC), Barcelona, Spain
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Prinsell MR, Everson DA, Weix DJ. Nickel-catalyzed, sodium iodide-promoted reductive dimerization of alkyl halides, alkyl pseudohalides, and allylic acetates. Chem Commun (Camb) 2010; 46:5743-5. [DOI: 10.1039/c0cc01716g] [Citation(s) in RCA: 144] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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12
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Balamurugan R, Kannan P. Photoisomerization behavior of bisbenzylidene and 1,3,4-oxadiazole-based liquid crystalline polyesters. J Appl Polym Sci 2010. [DOI: 10.1002/app.31742] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Balamurugan R, Kannan P. Photoreactive main chain liquid crystalline polyesters containing oxadiazole and bis(benzylidene) cycloalkanone units. ACTA ACUST UNITED AC 2008. [DOI: 10.1002/pola.22891] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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A simple and cost effective synthesis of 3,11-dimethylnonacosan-2-one, a female sex pheromone of the German cockroach. Molecules 2006; 11:751-7. [PMID: 17971751 DOI: 10.3390/11100751] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2006] [Revised: 10/10/2006] [Accepted: 10/10/2006] [Indexed: 11/17/2022] Open
Abstract
A convenient synthesis of 3,11-dimethylnonacosan-2-one (1) is described. Our strategy involves the use of well known C-alkylation and ethyl acetoacetate synthesis reactions as key steps. We expect that this method will prove to be useful for large scale preparation of 1 and modification of dimethylnonacosanones.
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Allylsilanes as Carbon Nucleophiles in the Palladium-Catalyzed 1,4-Oxidation of Conjugated Dienes. Chemistry 2006. [DOI: 10.1002/chem.19970030320] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Muñoz L, Rosa E, Bosch MP, Guerrero A. A new, practical and efficient sulfone-mediated synthesis of trifluoromethyl ketones from alkyl and alkenyl bromides. Tetrahedron Lett 2005. [DOI: 10.1016/j.tetlet.2005.03.106] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Coles SJ, Costello JF, Draffin WN, Hursthouse MB, Paver SP. Bi(III) halides as efficient catalysts for the O-acylative cleavage of tetrahydrofurans: an expeditious entry to tetralins. Tetrahedron 2005. [DOI: 10.1016/j.tet.2005.02.080] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Psychogios N, Regnouf-de-Vains JB, Stoeckli-Evans H. A Water-Soluble Calix[4]arene-Based Podand Incorporating 4,4′-Dicarboxy-2,2′-bipyridine Chelating Units− Synthesis and Complexation Properties towards Copper Ions. Eur J Inorg Chem 2004. [DOI: 10.1002/ejic.200300690] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Quero C, Rosell G, Jiménez O, Rodriguez S, Bosch MP, Guerrero A. New fluorinated derivatives as esterase inhibitors. Synthesis, hydration and crossed specificity studies. Bioorg Med Chem 2003; 11:1047-55. [PMID: 12614892 DOI: 10.1016/s0968-0896(02)00467-4] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
A variety of new fluorinated chemicals have been prepared for the first time and tested as inhibitors of esterases, one of the main enzymes involved in pheromone catabolism, in two economically important pests, the Egyptian armyworm Spodoptera littoralis (SL) and the Mediterranean corn borer Sesamia nonagrioides (SN). Using the respective major component of the pheromone as substrate, the K(m) and V(max) of the antennal esterase of both insects resulted to be 5.66 x 10(-4) M and 8.47 x 10(-6) Mmin(-1) for SL and 1.61 x 10(-7) M and 1.25 x 10(-7) Mmin(-1) for SN, pointing out that SN esterase has a higher affinity for its corresponding substrate than SL. In general, the trifluoromethyl ketones (TFMKs) exhibited higher inhibitory potency than the corresponding difluoromethyl ketones (DFMKs) or difluoroaldehydes (DFAs). The compounds appeared to hydrate differently in aqueous solution, the extent of hydration following the order: alpha,alpha-DFMKs<alpha,alpha-difluoro-beta-thioalkylmethyl ketones<TFMKs<beta-thiotrifluoromethyl ketones<alpha,alpha-DFAs. No clear correlation has been found between the K(hyd) and the inhibitory potency and no specificity has been found when the chemicals were assayed on extracts of both insects.
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Affiliation(s)
- Carmen Quero
- Department of Biological Organic Chemistry, Institute of Chemistry and Environmental Research (CSIC), Jordi Girona 18-26, 08034 Barcelona, Spain
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Guo Q, Miyaji T, Hara R, Shen B, Takahashi T. Group 5 and group 6 metal halides as very efficient catalysts for acylative cleavage of ethers. Tetrahedron 2002. [DOI: 10.1016/s0040-4020(02)00738-x] [Citation(s) in RCA: 75] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Merlic CA, Baur A, Yamada K, Brown SE. Synthesis of Quadruply Carbon-13 Labeled Tetramethyltetrathiaful Valene. SYNTHETIC COMMUN 2000. [DOI: 10.1080/00397910008086892] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Capdevila A, Prasad AR, Quero C, Petschen I, Bosch MP, Guerrero A. A Convergent and Highly Efficient Synthesis of (E,Z)-2,13-Octadecadienyl Acetate and (E,Z)-3,13-Octadecadienyl Acetate, Components of the Sex Pheromone of the Leopard Moth Zeuzera pyrina, through Sulfones. Org Lett 1999. [DOI: 10.1021/ol990114j] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Anna Capdevila
- Department of Biological Organic Chemistry, Institute of Chemical and Environmental Research (CSIC), Jordi Girona 18-26, 08034-Barcelona, Spain
| | - Attaluri R. Prasad
- Department of Biological Organic Chemistry, Institute of Chemical and Environmental Research (CSIC), Jordi Girona 18-26, 08034-Barcelona, Spain
| | - Carmen Quero
- Department of Biological Organic Chemistry, Institute of Chemical and Environmental Research (CSIC), Jordi Girona 18-26, 08034-Barcelona, Spain
| | - Inés Petschen
- Department of Biological Organic Chemistry, Institute of Chemical and Environmental Research (CSIC), Jordi Girona 18-26, 08034-Barcelona, Spain
| | - Maria P. Bosch
- Department of Biological Organic Chemistry, Institute of Chemical and Environmental Research (CSIC), Jordi Girona 18-26, 08034-Barcelona, Spain
| | - Angel Guerrero
- Department of Biological Organic Chemistry, Institute of Chemical and Environmental Research (CSIC), Jordi Girona 18-26, 08034-Barcelona, Spain
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Parrilla A, Villuendas I, Guerrero A. Synthesis of trifluoromethyl ketones as inhibitors of antennal esterases of insects. Bioorg Med Chem 1994; 2:243-52. [PMID: 7922135 DOI: 10.1016/s0968-0896(00)82167-7] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
A variety of long chain aliphatic and aromatic trifluoromethyl ketones I-XIV has been conveniently prepared, many of them for the first time, from the corresponding Grignard or organolithium derivatives. Two of them, (Z)-1,1,1-trifluoro-15-octadecen-13-yn-2-one (XV) and (Z)-1,1,1-trifluoro-16-nonadecen-14-yn-2-one (XVI), structurally-closed analogues of (Z)-13-hexadecen-11-ynyl acetate, the sex pheromone of the processionary moth Thaumetopoea pityocampa, have been stereospecifically synthesized in excellent yield by a convenient new method. The procedure involves lithiation of the corresponding iododerivative XXIX and XXX with one equivalent of tert-BuLi to obviate addition of the reagent to the enyne system. Some of the compounds have already been tested and found to be good inhibitors of antennal esterases in the Egyptian armyworm Spodoptera littoralis and the pheromone action in the processionary moth Thaumetopoea pityocampa. beta-Thiotrifluoromethyl ketones XVII-XX, which are expected to enhance the inhibition activity of the parent ketones due to their higher hydration constants, have also been prepared in good yields.
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Affiliation(s)
- A Parrilla
- Department of Biological Organic Chemistry, C.I.D. (CSIC), Barcelona, Spain
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Villuendas I, Parrilla A, Guerrero A. An efficient and expeditious synthesis of functionalized trifluoromethyl ketones through lithium-iodine exchange reaction. Tetrahedron 1994. [DOI: 10.1016/s0040-4020(01)89400-x] [Citation(s) in RCA: 23] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Abenhaim D, Loupy A, Petit A, Gonthier-Vassal A, Szwarc H. Synthesis of cyano-[D11]-cyclohexane. J Labelled Comp Radiopharm 1993. [DOI: 10.1002/jlcr.2580330106] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Ducoux JP, Le Ménez P, Kunesch N, Kunesch G, Wenkert E. An efficient and stereoselective synthesis of insect pheromones by way of nickel-catalyzed Grignard reactions. Syntheses of gossyplure and pheromones of Eudia pavonia and Droxophila melanogaster. Tetrahedron 1992. [DOI: 10.1016/s0040-4020(01)88230-2] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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29
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Kotha S, Kuki A. A new synthetic approach to unusually electron rich α-amino acids. ACTA ACUST UNITED AC 1992. [DOI: 10.1039/c39920000404] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Inhibitory pheromonal activity promoted by sulfur analogs of the sex pheromone of the female processionary mothThaumetopoea pityocampa (Denis and schiff). J Chem Ecol 1990; 16:1155-72. [DOI: 10.1007/bf01021017] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/1989] [Accepted: 06/22/1989] [Indexed: 10/25/2022]
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Ducoux JP, Le Ménez P, Kunesch N, Kunesch G, Wenkert E. Short, regio- and stereo-selective preparation of 1,5- and 1,6-dienes. Syntheses of eudia pavonia pheromone and gossyplure. Tetrahedron Lett 1990. [DOI: 10.1016/0040-4039(90)80134-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Camps F, Messeguer A, Sánchez FJ. On the coherence of incorporation of the fluorovinyl moiety into bioactive organic compounds. Synthesis of an insect juvenile hormone III fluorinated analog. Tetrahedron 1988. [DOI: 10.1016/s0040-4020(01)86022-1] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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