Zobrazeno 1 - 10
of 47
pro vyhledávání: '"Bernard R. Langlois"'
Publikováno v:
Journal of Fluorine Chemistry. 155:118-123
Because of the great interest of benzoheteroazepines and trifluoromethylated compounds in medicinal chemistry, a simple strategy to synthesize trifluoromethylated 1,5-benzoheteroazepines have been described. Starting from β-trifluoromethylated enone
Publikováno v:
Journal of Fluorine Chemistry. 132:799-803
β-(Trifluoromethyl) enones, easily obtained in few steps from commercially available methyl hemiketal of trifluoroacetaldehyde, react with electron-rich O- and N-containing heterocycles (furans and benzofurans, pyrroles and indoles, hydroxycoumarins
Publikováno v:
Advanced Synthesis & Catalysis. 352:2831-2837
The reaction of tetrabutylammonium triphenyldifluorosilicate with 2,4-dinitro(trifluoromethoxy)benzene, in acetonitrile and under microwave irradiation, generates a trifluoromethoxide anion which is able to substitute activated bromides (benzyl bromi
Publikováno v:
Angewandte Chemie. 121:8703-8707
Autor:
Diane M. Coe, Bernard R. Langlois, Yves Queneau, Stéphane Chambert, Aurélie Assalit, Thierry Billard
Publikováno v:
Tetrahedron: Asymmetry
Tetrahedron: Asymmetry, Elsevier, 2009, 20 (5), pp.593-601. ⟨10.1016/j.tetasy.2009.02.050⟩
Tetrahedron: Asymmetry, Elsevier, 2009, 20 (5), pp.593-601. ⟨10.1016/j.tetasy.2009.02.050⟩
International audience; A series of 10 new carbohydrate-substituted bipyridines were prepared from 2,2′-bipyridine-3,3′-dicarboxylic acid, itself easily available from ortho-phenanthroline. As a preliminary exploration of their use as chiral liga
Publikováno v:
The Journal of Organic Chemistry. 73:9362-9365
Fluorinated moieties constitute important substituents used in many applications to modify the properties of molecules. The action of DAST onto Ruppert's reagent yields to a not isolable intermediate that can then react with various primary amines to
Autor:
Jean-Paul Alric, Thierry Billard, Bertrand Morel, Olivier Roy, Bernard Marquet, Alex Jourdan, Bernard R. Langlois
Publikováno v:
Journal of Fluorine Chemistry
Journal of Fluorine Chemistry, 2014, 167, pp.74-78
Journal of Fluorine Chemistry, Elsevier, 2014, 167, pp.74-78
Journal of Fluorine Chemistry, 2014, 167, pp.74-78
Journal of Fluorine Chemistry, Elsevier, 2014, 167, pp.74-78
International audience; The annual worldwide production of UF6 is very large and this compound is not used. Consequently, it could be interesting to find some applications as organic reagent. UF6 could be considered as an oxidizer of various function
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b4740808a4ab420872052d5f474c100b
https://hal.science/hal-01154481
https://hal.science/hal-01154481
Publikováno v:
Organic Process Research and Development
Organic Process Research and Development, American Chemical Society, 2014, 18, pp.1037-1040
Organic Process Research and Development, American Chemical Society, 2014, 18, pp.1037-1040
International audience; α-trifluoromethoxy carbonyl compounds are valuable building blocks for the synthesis of various trifluoromethoxylated compounds. The best way to easily obtain them is the direct trifluoromethoxylation with the CF3O– anion,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5c221db9d207ce44de5647d3debdee78
https://hal.archives-ouvertes.fr/hal-01154495
https://hal.archives-ouvertes.fr/hal-01154495
Publikováno v:
ChemInform. 45
Because of the great interest of benzoheteroazepines and trifluoromethylated compounds in medicinal chemistry, a simple strategy to synthesize trifluoromethylated 1,5-benzoheteroazepines have been described. Starting from β-trifluoromethylated enone
Publikováno v:
ChemInform. 43
Title reaction is smoothly achieved using trifluoromethanesulfinamide (II) as a less toxic alternative to CF3SCl.