Stereoselectivity in the formation of tricarbonyliron complexes of some dihydrobiphenyls
作者:B.M.Ratnayake Bandara、Arthur J. Birch、Brian Chauncy
DOI:10.1016/0022-328x(93)83066-5
日期:1993.2
Ratios of isomeric products in complexation of some substituted cyclohexa-1,4- and 1,3-dienes, using Fe(CO)5 or Fe3(CO)12 are significantly affected by the nature of an allylic substituent: CO2Me tends to direct the metal to its occupied face, Ph less so and Me is inhibitory. An appropriately substituted cyclohexadiene gives a single stereoisomer.
Metal-ammonia reduction. XII. Mechanism of reduction and reductive alkylation of aromatic hydrocarbons
作者:Donald F. Lindow、Cecilia N. Cortez、Ronald G. Harvey
DOI:10.1021/ja00770a043
日期:1972.7
Synthesis of selectively fluorinated cyclohexanes: The observation of phenonium rearrangements during deoxyfluorination reactions on cyclohexane rings with a vicinal phenyl substituent
group at the benzylic position, found that the fluorination reactions of diepoxide and diol precursors, were susceptible to rearrangement and unexpected products. The origin of these rearranged products can be rationalised by aryl migrations occurring via phenoniumionintermediates, in adventitious pathways occurring during deoxofluorination reactions with hydrogen fluoride reagents.