2008

AlcoholsP 0110 Catalytic Enantioselective Allyl- and Crotylboration of Aldehydes Using Chiral

Diol·SnCl4 Complexes. Optimization, Substrate Scope and Mechanistic Investiga-tions. — The catalyst system is very efficient for the enantioselective allyl- and crotyl-boration of aliphatic aldehydes. Electron-poor aromatic aldehydes also afford high e.e. values, but a limitation of the method is found in the allylation of deactivated aromatic aldehydes. — (RAUNIYAR, V.; ZHAI, H.; HALL*, D. G.; J. Am. Chem. Soc. 130 (2008) 26, 8481-8490; Dep. Chem., Univ. Alberta, Edmonton, Alberta T6G 2G2, Can.; Eng.) — Bartels

45- 058

2008