Atropo-enantioselective synthesis of a simplified analog of mastigophorenes A and B
作者:Gerhard Bringmann、Thomas Pabst、Stefan Busemann、Karl Peters、Eva-Maria Peters
DOI:10.1016/s0040-4020(97)10362-3
日期:1998.2
A first approach to the atroposelective total synthesis of mastigophorenes is described, the directed preparation of a structurally slightly modified analog of mastigophorenes A and B, with a tert-butyl instead of a substituted, chiral cyclopentyl residue. Its (partially protected) monomeric half is dimerized by oxidative (phenolic) coupling to give the corresponding biphenyl in a racemic form, or
描述了第一种方法,用于对马鞭草碳烯进行Atroposelective全合成,该方法的直接制备是使用叔丁基而不是取代的手性环戊基残基,对马草球烯A和B进行结构上稍微修饰的类似物。其(部分受保护的)单体半通过氧化(酚)偶联而二聚,得到外消旋形式的相应联苯,或通过相应的联芳基内酯进行对映体对映选择性,得到M-或可选地P-对映体形式,通过立体选择性开环和随后的标准转换。