An annulation method for the synthesis of highly substituted polycyclic aromatic and heteroaromatic compounds
作者:Rick L. Danheiser、Ronald G. Brisbois、James J. Kowalczyk、Raymond F. Miller
DOI:10.1021/ja00164a033
日期:1990.4
A general strategy for the synthesis of highly substituted polycyclicaromatic and heteroaromatic compounds has been developed. The new aromatic annulation is achieved simply by the irradiation of a dichloroethane solution of an acetylene derivative and a vinyl or aryl α-diazo ketone. Mechanistically, the reaction proceeds via the photochemical Wolff rearrangement of the diazo ketone to generate an
Formation of a PIII−C(sp2) bond by addition of diphenyl(trimethylsilyl)phosphine to activated acetylenes
作者:A. N. Kochetkov、I. V. Efimova、I. G. Trostyanskaya、M. A. Kazankova、I. P. Beletskaya
DOI:10.1007/bf02495698
日期:1998.9
Diphenyl(trimethylsilyl)phosphine reacts with alkoxy(alkyl)acetylenes to give mixtures of addition products, (2-alkoxy-2-trimethylsilylalkenyl)diphenylphosphines and (2-alkoxyalkenyl)diphenylphosphines. The reaction is sensitive to the solvent; in MeCN, it gives only nonsilylated products. (1-Alkoxyethenyl)diphenylphosphines were obtained as the main products upon the reaction of Ph2PSiMe3 with terminal