Fluoro-containing Heterocycles: XIV. Cyclic Adducts of 6-Fluoro-7-azidoquinoxaline and Their Transformation Products
作者:N. N. Mochul'skaya、E. N. Nagibina、Yu. S. Volchenkova、L. P. Sidorova、V. N. Charushin
DOI:10.1007/s11178-006-0021-0
日期:2005.11
The possibility of a structural modification of quinoxalines through 1,3-dipolar cycloaddition of 7-azido-6-fluoroquinoxaline to norbornenes, enamines of cyclic ketones, and dimethyl acetylenedicarboxylate was demonstarated. The stability of 1,2,3-triazoline adducts was studied and the structure of the products of their molecular rearrangements was established. The cycloadduct of azide with cyclohexanone enamine undergoes azapinacolone rearrangement involving a contruction of the cycloalkane ring by one member affording amidine of cyclopentanecarboxylic acid. The triazoline adduct of the azide with dicyclopentadiene as a result of the rearrangement affords the corresponding aziridinoquinoxaline.
通过 7-叠氮-6-氟喹喔啉与降冰片烯、环酮烯胺和乙炔二甲酸二甲酯的 1,3-二极环加成,证明了对喹喔啉进行结构改造的可能性。研究了 1,2,3-三唑啉加合物的稳定性,并确定了其分子重排产物的结构。叠氮化物与环己酮烯胺的环加合物发生了叠氮吡咯酮重排反应,其中涉及环烷环上一个成员的构造,从而产生了环戊烷羧酸脒。重排后叠氮化物与二环戊二烯的三唑啉加合物生成相应的氮丙啶喹喔啉。