Antimony/<i>N</i>-Hydroxyphthalimide as a Catalyst System for Cross-Dehydrogenative Coupling Reactions under Aerobic Conditions
作者:Arata Tanoue、Woo-Jin Yoo、Shū Kobayashi
DOI:10.1002/adsc.201200999
日期:2013.2.1
In the course of our investigations to find a novel catalyst for the cross-dehydrogenativecoupling (CDC) reaction, it was discovered that antimony(V) serves as a co-catalyst with N-hydroxyphthalimide (NHPI) underaerobicconditions. This is a rare example of a catalytic use of antimony for an oxidative couplingreaction.
various cis-2,3-diacetoxylated piperidines. On the other hand, tetrahydroisoquinoline derivatives gave various α-C−H functionalized products in the presence of PhI(OAc)2. Nitroalkanes, dialkyl malonates, and β-keto ester are active participants in this couplingreaction. Meanwhile, α-amino nitriles can also be obtained by oxidativecoupling of amines with malononitrile.