A ferrocenyl palladacycle complex has been identified as a highly enantioselective catalyst for 1,2-additions of a diverse range of alkynes to imines (39 examples) providing nearly enantiopure propargylic amine derivatives. Compared to known methods turnover numbers could be increased by ca. 2–3 orders of magnitude.
<i>C</i><sub>2</sub>-Symmetric Bicyclo[3.3.1]nonadiene as a Chiral Ligand for Rhodium-Catalyzed Asymmetric Arylation of <i>N</i>-(4-Nitrobenzenesulfonyl)arylimines
Asymmetric synthesis of diarylmethylamines with high enantioselectivity (95-99% ee) was realized by use of a new C-2-symmetric diene ligand. (1R,5R)-2,6-diphenylbicyclo[3.3.1]nona-2,6-diene (Ph-bnd*), for the rhodium-catalyzed asymmetric arylation of N(4-nitrobenzenesulfony)arylimines with arylboroxines.
SULFONIMINE ALS BLEICHAKTIVATOREN
申请人:Henkel AG & Co. KGaA
公开号:EP2503984B1
公开(公告)日:2017-11-08
Asymmetric Friedel−Crafts Addition of Indoles to <i>N</i>-Sulfonyl Aldimines: A Simple Approach to Optically Active 3-Indolyl-methanamine Derivatives
[reaction: see text] The enantioselective copper(II)-catalyzed Friedel-Crafts addition of indoles to N-sulfonyl aldimines was developed using chiral bisoxazoline as ligands, and high enantioselectivities (up to 96% ee) were achieved.
Lewis Acid-Catalyzed CH Functionalization for Synthesis of Isoindolinones and Isoindolines
作者:Bo Qian、Shengmei Guo、Chungu Xia、Hanmin Huang
DOI:10.1002/adsc.201000556
日期:2010.12.17
The Lewisacid-catalyzed CH functionalization of 2-substituted azaarenes with N-sulfonylaldimines has been developed, which provides a rapid and efficient approach for synthesis of heterocycle-containing isoindolinones and isoindolines.