Complementary approaches to the stereoselective preparations of cis and trans aminohydrins
作者:Vincent A. Boyd、Yousuf P. Najjar、Larry A. Ytuarte、Michael M. Savage、Joe B. Perales、Thomas Meehan、George R. Negrete
DOI:10.1016/s0040-4039(98)00605-4
日期:1998.5
Approaches to the stereoselective synthesis of 1,2-aminohydrins from an epoxide are described. Various trans aminols are prepared via amination of 7,8-epoxy-7,8,9,10-tetrahydrobenzo[a]pyrene employing trimethylaluminum as a catalyst. Cis aminols are generated via conversion of the epoxide to the acetyl protected trans chlorohydrin followed by direct amine substitution and deprotection.
描述了由环氧化物立体选择性合成1,2-氨基醇的方法。通过使用三甲基铝作为催化剂的7,8-环氧-7,8,9,10-四氢苯并[ a ] re的胺化反应来制备各种反氨基。通过将环氧化物转化为乙酰基保护的反式氯醇,然后直接进行胺取代和脱保护,可生成顺式氨基。