Cobalt(II) acetate promoted addition of acetoacetate to terminal olefins: A highly stereoselective synthesis of 5-alkyl-2-hydroxy 2 methyl-3-methoxycarbonyl tetrahydrofurans
作者:Javed Iqbal、T.K.Praveen Kumar、S. Manogaran
DOI:10.1016/s0040-4039(01)80778-4
日期:1989.1
Methylacetoacetate and terminal olefins react in presence of Cobalt(II) acetate and Oxygen to give the titled compound(2) in a highly stereoselective manner and the structure of this compound is elucidated by 1H NMR simulation studies.
乙酰乙酸甲酯和末端烯烃在乙酸钴(II)和氧气的存在下反应,以高度立体选择性的方式得到标题化合物(2),并且该化合物的结构通过1 H NMR模拟研究得以阐明。
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.