E
Evelyne Chelain
Researcher at Cergy-Pontoise University
Publications - 20
Citations - 278
Evelyne Chelain is an academic researcher from Cergy-Pontoise University. The author has contributed to research in topics: Trifluoromethyl & Ketene. The author has an hindex of 9, co-authored 18 publications receiving 269 citations. Previous affiliations of Evelyne Chelain include Centre national de la recherche scientifique.
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Reaction of aminocarbene complexes of chromium with alkynes. 1. Formation and rearrangement of ketene and nitrogen ylide complexes
Evelyne Chelain,Régis Goumont,Louis Hamon,Andrée Parlier,M. Rudler,Henri Rudler,Jean Claude Daran,Jacqueline Vaissermann +7 more
TL;DR: The title reactions of chromium-containing carbene complexes (CO) 5 Cr=(R 1 )N(R 2 R 3 ) (R 1 =H, Me, Ph; R 2 =Me; R 3 =Me, C 3 H 5, CH 2 C 3H 5 ) 8 and (CO 5 Cr=C[(CH 2 ) 3 C≡CPh]N
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Reaction of aminocarbene complexes of chromium with alkynes. 2. Intramolecular insertions leading to polycyclic lactams
Evelyne Chelain,Andrée Parlier,Max Audouin,Henri Rudler,Jean Claude Daran,Jacqueline Vaissermann +5 more
TL;DR: In this article, the authors examined the thermolysis of chromium-containing carbene complexes of the general structure (CO) 5 Cr=C(NR 2 R 3 )-(CH 2 ) n C=C-R 1) and showed that the insertions of the triple bond and of CO, followed by a rearrangement to tricyclic lactams, are observed.
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Aminocarbene complexes of chromium and molybdenum : initiators for cascade reactions with alkynes leading to new heterocyclic compounds via nitrogen ylides
Henri Rudler,Max Audouin,Evelyne Chelain,B. Denise,Régis Goumont,A. Massoud,Andrée Parlier,Annie Pacreau,M. Rudler,R. Yefsah,Cecilio Alvarez,F. Delgado-Reyes +11 more
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Meta, para and meta, ortho double exo nucleophilic additions of trimethylsilylester enolates derived from saturated and unsaturated carboxylic acids to tricarbonylchromium complexes of aryl ethers: dearomatizing cyclization to lactones
Henri Rudler,Virginie Comte,Eva Garrier,Eva Garrier,Moncef Bellassoued,Evelyne Chelain,Jacqueline Vaissermann +6 more
TL;DR: In this article, the influence of the nature of substituents on the ketene acetals, of the oxidant and of the ester enolates on the course of the reaction has been established and discussed.
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Concise synthesis of enantiopure (S)- and (R)-α-trifluoromethyl aspartic acid and α-trifluoromethyl serine from chiral trifluoromethyl oxazolidines (Fox) via a Strecker-type reaction
Julien Simon,Thi Thuan Nguyen,Evelyne Chelain,Nathalie Lensen,Julien Pytkowicz,Grégory Chaume,Thierry Brigaud +6 more
TL;DR: In this article, a concise synthesis of enantiopure (S)- and (R)-α-Tfm-aspartic acid and α-tfm-serine is reported, which involves a Strecker-type reaction on chiral CF3-oxazolidines derived from ethyl 4,4,4-trifluoroacetoacetate (ETFAA) or ethyl trifluoropyruvate.