High-Pressure Enantioselective Allylation of Aldehydes Catalyzed by (Salen)Chromium(III) Complexes
作者:Janusz Jurczak、Piotr Kwiatkowski
DOI:10.1055/s-2004-836067
日期:——
The enantioselective addition of allyltributyltin to simple aldehydes (2a-1), catalyzed by chiral (salen)Cr(III) complexes 1, has been studied. The reaction proceeds smoothly with low loading (1-2 mol%) of (salen)Cr(III)BF 4 (la) and allyltributyltin under high-pressure conditions (10 kbar) in good yield and ee values in the range of 35-79%.
已经研究了烯丙基三丁基锡对简单醛 (2a-1) 的对映选择性加成,由手性 (salen) Cr(III) 配合物 1 催化。该反应在高压条件 (10 kbar) 下以低负载 (1-2 mol%) (salen)Cr(III)BF 4 (la) 和烯丙基三丁基锡顺利进行,收率良好,ee 值在 35- 79%。