Pinacol boronicesters are highly valuable buildingblocks in organic synthesis. In contrast to the many protocols available on the functionalizing deboronation of alkyl boronicesters, protodeboronation is not well developed. Herein we report catalytic protodeboronation of 1°, 2° and 3° alkyl boronicesters utilizing a radical approach. Paired with a Matteson–CH2–homologation, our protocol allows
Tandem reaction by using compatible catalysts: cross-metathesis reaction and hydrogenation
作者:Janine Cossy、Frédéric C. Bargiggia、Samir BouzBouz
DOI:10.1016/s0040-4039(02)01523-x
日期:2002.9
A one-pot tandem cross-metathesis/hydrogenation procedure was achieved at room temperature, under one atmosphere of hydrogen, in the presence of ruthenium catalyst II and PtO2 showing the compatibility of the two catalysts. (C) 2002 Elsevier Science Ltd. All rights reserved.