Enantiomerically pure α-methoxyaryl acetaldehydes as versatile precursors: a facile chemo-enzymatic methodology for their preparation
摘要:
A facile and efficient synthesis of optically active alpha-methoxyaryl acetic acids (up to 95% ee), alpha-methoxyaryl ethanols (up to 93% ee) and alpha-methoxyaryl acetonitriles (up to 93% ee) was achieved via Arthrobacter sp. lipase-catalyzed kinetic resolution of masked aldehydes as the key synthons, that is, alpha-hydroxyaryl acetaldehyde acetals. (C) 2008 Elsevier Ltd. All rights reserved.
Highly Efficient and Catalytic Conversion of Aldoximes to Nitriles
摘要:
[GRAPHICS]Catalytic dehydration of aldoximes can be performed highly efficiently with a catalyst system of [RuCl2(p-cymene)](2)/molecular sieves under essentially neutral and mild conditions, and various types of cyano compounds are produced in good to excellent yields.