Friedel-Crafts reaction has been reported recently." The present work was undertaken in an attempt to improve the synthesis of 3 by reaction of a weakly ionic naphthalene organocadmium derivative with methyl adipoyi chloride (methyl 6-chlorod-oxohexanoate, 1) in the hope that addition would occur selectively at the most electrophilic carbonyl group. The reaction of an excess of the cadmium reagent of 2 with
Regioselectivity Switch: Gold(I)-Catalyzed Oxidative Rearrangement of Propargyl Alcohols to 1,3-Diketones
作者:A. Stephen K. Hashmi、Tao Wang、Shuai Shi、Matthias Rudolph
DOI:10.1021/jo301381z
日期:2012.9.7
The gold(I)-catalyzed oxidative rearrangement of propargyl alcohols provides an efficient and selective route to 1,3-diketones under mild conditions. Pyridine-N-oxides were used as external oxidants with, different from related substrates, no alkylidenecycloalkanones or oxetan-3-ones formed as side-products.