First stereoselective pinacol coupling in the [2.2]paracyclophane series
作者:Elena V. Sergeeva、Valeria I. Rozenberg、Dmitrii Yu. Antonov、Evgenii V. Vorontsov、Zoya A. Starikova、Henning Hopf
DOI:10.1016/s0957-4166(02)00315-4
日期:2002.6
The planar chiral N-arylimines of [2.2]paracyclophane undergo stereoselective pinacol coupling under the action of the Zn/Cu couple in the presence of p-TosOH, thus forming N-aryl substituted 1,2-diamines. The stereoselective formation of the asymmetric centers is governed by the planar chiral [2.2]paracyclophanyl moiety. (C) 2002 Elsevier Science Ltd. All rights reserved.