Catalyst development for organocatalytic hydrosilylation of aromatic ketones and ketimines†‡§
Angus J. P. Stewart-Liddon,Grant D. McGeoch,Pedro Ramírez-López,Pavel Kočovský
Organic & Biomolecular Chemistry Pub Date : 04/25/2012 00:00:00 , DOI:10.1039/C2OB25472G
Abstract

A new family of Lewis basic 2-pyridyl oxazolines have been developed, which can act as efficient organocatalysts for the enantioselective reduction of prochiral aromatic ketones and ketimines with trichlorosilane, a readily available and inexpensive reagent. 1-Isoquinolyl oxazoline, derived from mandelic acid, was identified as the most efficient catalyst of the series, capable of delivering high enantioselectivities in the reduction of both ketones (up to 94% ee) and ketimines (up to 89% ee).

Graphical abstract: Catalyst development for organocatalytic hydrosilylation of aromatic ketones and ketimines