Chiral γ and δ Hydroxysulfones via lipase catalyzed resolutions - synthesis of (R)(+)-4-hexanolide and (2R,5S)-2-methyl-5-hexanolide using intramolecular acylation
作者:Hollie K. Jacobs、Britta H. Mueller、Aravamudan S. Gopalan
DOI:10.1016/s0040-4020(01)81988-8
日期:1992.1
Lipas PS-30 (Amano) was found to be an effective catalyst for enantioselective transesterification of a number of racemic γ and δ hydroxysulfones with isopropenyl acetate in ether. The intramolecular acylation of the ethyl carbonate derivatives obtained from the chiral hydroxysulfones 1d and 1b has been used for the preparation of R(+)-4-hexanolide, sex pheromone of the female dermestid beetle Trogoderma
发现Lipas PS-30(Amano)是在醚中将许多外消旋γ和δ羟基砜与乙酸异丙烯酯对映选择性酯交换的有效催化剂。从手性羟基砜1d和1b获得的碳酸乙酯衍生物的分子内酰化已用于制备R(+)-4-己内酯,雌性硬皮甲虫Trogoderma glabrum和(2 R,5 S)- 2-甲基-5-己内酯,木匠蜂的性信息素。