A free radical cyclization approach to indolo-benzodiazocine derivatives
作者:John B. Bremner、Waya Sengpracha
DOI:10.1016/j.tet.2004.11.007
日期:2005.1
versatile route to indolo[2,1-d][1,5]benzodiazocine derivatives has been developed based on a free radical cyclization approach from 1-substituted indole derivatives with appropriately positioned haloacetamide functionalities. Fair yields of the indole- and dihydroindole-fused eight-memberedring derivatives were obtained from N-substituted iodo- and bromoacetamide precursors. Synthetic and mechanistic aspects
基于自由基环化方法,从具有适当位置的卤代乙酰胺官能团的1-取代的吲哚衍生物开发了一种通用的吲哚[2,1- d ] [1,5]苯并重氮衍生物的途径。从N-取代的碘-和溴乙酰胺前体中可获得合理收率的吲哚和二氢吲哚稠合的八元环衍生物。讨论了区域特异性环化的合成和机理方面。
Novel Indole-fused, Medium-sized Ring Heterocycles via Chloroacetamide Photochemistry
作者:John B. Bremner、Henry F. Russell、Brian W. Skelton、Allan H. White