Reductive alkylation of p-benzoquinone using mixed organoboranes
作者:David J. Zillman、Gloria C. Hincapié、M. Reza Savari、Farhad G. Mizori、Thomas E. Cole
DOI:10.1016/j.tetlet.2010.03.096
日期:2010.6
Mixed organoboranes based on diphenyl- or dimethylalkylboranes transfer the alkyl group in the reductive alkylation of p-benzoquinone to form the alkylhydroquinones in very high yields. The auxiliary groups do not transfer or have a low migratory aptitude. Primary and secondary alkyl groups are transferred with retention of regio- and stereochemistry to the hydroquinone. O-Alkylation is the major product