Ortiz, Pablo published the artcileCopper-Catalyzed Enantioselective Alkylation of Enolizable Ketimines with Organomagnesium Reagents, Category: esters-buliding-blocks, the publication is Angewandte Chemie, International Edition (2017), 56(11), 3041-3044, database is CAplus and MEDLINE.
Inexpensive and readily available organomagnesium reagents were used for the catalytic enantioselective alkylation of enolizable N-sulfonyl ketimines [e.g., I + HexMgBr → II (71% yield, 74% ee)]. The low reactivity and competing enolization of the ketimines was overcome by the use of a copper-phosphine chiral catalyst, which also rendered the transformation highly chemoselective and enantioselective for a broad range of ketimine substrates.
Angewandte Chemie, International Edition published new progress about 1877-71-0. 1877-71-0 belongs to esters-buliding-blocks, auxiliary class Carboxylic acid,Benzene,Ester, name is 3-(Methoxycarbonyl)benzoic acid, and the molecular formula is C9H8O4, Category: esters-buliding-blocks.
Referemce:
https://en.wikipedia.org/wiki/Ester,
Ester – an overview | ScienceDirect Topics