Imino-Bridged heterocycles. V . Synthesis of 6,11-dimethyl-1 1<i>H</i>-benzo[5,6]cyclohepta[1,2-<i>c</i>]pyridin-6,11-imine by a regiospecific amide to olefin cyclization
作者:Daniel G. Brenner、Wasyl Halczenko、Kenneth L. Shepard
DOI:10.1002/jhet.5570230129
日期:1986.1
to prepare tertiary carbinamines as intermediates to the desired 6,11-dimethyl-11H-benzo[5,6]cyclohepta[1,2-c]pyridin-6,11-imine system (10) instead gave products resulting from nitrogen-sulfur bond cleavage. The preparation and use of the corresponding sulfonimine 8, however, led to 10 through a regiospecific base-catalyzed reaction.
尝试利用亚磺胺6a,b制备叔卡宾胺作为所需6,11-二甲基-11 H-苯并[5,6]环庚[1,2 - c ]吡啶-6,11-亚胺系统的中间体(10)而是得到由氮-硫键裂解产生的产物。然而,相应的亚磺胺8的制备和使用通过区域特异性碱催化的反应导致了10。