Synthesis of Dendrimer-Supported Prolinols and Their Application in Enantioselective Reduction of Ketones
作者:Gang Zhao、Guang-yin Wang、Xin-yuan Liu
DOI:10.1055/s-2006-926253
日期:——
Optically active dendritic amino alcohols were synthesized and applied to catalyze the enantioselective borane reduction of various ketones with good yield and high enantiomeric excesses.
A copper(I)/DDQ-mediated double-dehydrogenative Diels–Alder (DDDA) reaction of simple butenes with 1,4-diketones and indolones has been established for the first time. This strategy is based on a tandem double-dehydrogenation/Diels–Alderreaction from nonprefunctionalized starting materials, in which both a diene and dienophile were in situgenerated via activation of fourfold inert C(sp3)–H bonds