Iron pentacarbonyl is an effective promoter for additions of halogenated acid esters and nitriles to pentafluorophenyl carbonyl compounds 1, 4, and 5 by the Reformatsky-type reaction and reductive coupling of compound 1. The electron-withdrawing character of the pentafluorophenyl group has a significant effect on the reaction pathway and the type of the reaction products. The reactions involving metal
Diastereoselective synthesis of pinacols from aromatic aldehydes using the system pentacarbonyliron-hexamethylphosphoric triamide. Dual reactivity of pentafluorobenzaldehyde
作者:A. B. Terent’ev、T. T. Vasil’eva、O. V. Chakhovskaya、N. E. Mysova、K. A. Kochetkov
DOI:10.1134/s1070428007040057
日期:2007.4
The system Fe(CO)(5)-HMPA effectively promotes diastereoselective reductive dimerization of aromatic aldehydes to the corresponding pinacols having preferentially or exclusively dl configuration. In the reaction with pentafluorobenzaldehyde, the product structure strongly depends on the presence of traces of moisture in the reaction system.
Artamkina,G.A. et al., Doklady Chemistry, 1978, vol. 242, p. 464 - 467