The Betti base: absolute configuration and routes to a family of related chiral nonracemic bases
作者:Cosimo Cardellicchio、Giuseppe Ciccarella、Francesco Naso、Emanuela Schingaro、Fernando Scordari
DOI:10.1016/s0957-4166(98)00379-6
日期:1998.10
the absolute configuration of the two isomers was established by means of an X-ray diffractometric study. A series of optically active derivatives was also prepared. The list includes the N-benzyl- and the N,N,O-trimethyl derivatives. The N,N-dimethyl derivative was prepared in racemic form by means of the Betti reaction and was resolved into the two enantiomers with an extremely easy and efficient procedure
研究了用于Betti碱[即1-(α-氨基苄基)-2-萘酚]拆分的详细协议,并通过X射线衍射研究确定了两种异构体的绝对构型。还制备了一系列光学活性衍生物。该列表包括N-苄基和N,N,O-三甲基衍生物。通过Betti反应将外消旋形式的N,N-二甲基衍生物制备,并以极其容易和有效的方法将其拆分为两种对映体。该Ø-外消旋形式制备-甲基衍生物并进行拆分。每个碱基的构型是通过与贝蒂胺的构型相关来确定的。