An Expeditious Access to Enantiomerically Purecis-Dialkyl-Substitutedγ- andδ-Lactones
作者:Yikang Wu、Xin Shen、Chao-Jun Tang、Zhi-Long Chen
DOI:10.1002/1522-2675(20011114)84:11<3428::aid-hlca3428>3.0.co;2-j
日期:2001.11.14
A facile general route to enantiomerically pure 3,4-cis-dialkyl-substituted gamma -lactones and 4,5-cis-dialkyl-substituted delta -lactones by TiCl4-mediated Evans asymmetric aldolization as the key step is exemplified by synthesis of cis-(3R,4R)-3-methyldecan-4-olide and (4R,5R)-aerangis lactone.