Stereoselective synthesis of substituted tetrahydrofurans - identification and analysis by proton NMR and MNDO, MM2 calculations
作者:P. Tarakeshwar、Javed Iqbal、S. Manogaran
DOI:10.1016/s0040-4020(01)80924-8
日期:1991.1
Methyl acetoacetate and terminal olefins react in the presence of cobalt(II) acetate and oxygen to give 5-alkyl-2-hydroxy-2-methyl-3-methoxycarbonyl tetrahydrofurans in a highly stereoselective manner. Proton NMR, semiempirical MNDO and empirical MM2 methods are used to identify the particular diastereomer and the energetics of the different isomers are discussed.