A convenient synthesis of substituted 1,2,4-trioxepanes via Co(II) catalyzed oxygenation of cinnamyl alcohol
作者:Chang Ho Oh、Ji Hye Kang
DOI:10.1016/s0040-4039(98)00335-9
日期:1998.4
Co (II) catalyzed oxygenation of three alkenes in the presence of triethylsilane was carried out according to the Mukaiyama's procedure in two solvents. One product, 3-phenyl-3-triethylsilylperoxy-1-propanol derived from cinnamyl alcohol, was simultaneously desilylated and cyclized with aldehydes or ketones to give the corresponding 1,2,4-trioxepanes in high yields under mild condition. While aldehyde
在三乙基硅烷的存在下,根据Mukaiyama的方法,在两种溶剂中进行了Co(II)催化的三种烯烃的氧化。一种产物,衍生自肉桂醇的3-苯基-3-三乙基甲硅烷基过氧-1-丙醇同时被甲硅烷基化并与醛或酮环合,在温和条件下以高收率得到相应的1,2,4-三氧杂环丁烷。尽管醛在形成1,2,4-三氧杂环丁烷时具有一定的选择性,但不对称酮的选择性不高。