Five-membered 2,3-dioxo heterocycles: LXX. Spiro heterocyclization of 1H-pyrrole-2,3-diones by the action of 1,5-binucleophiles. Crystalline and molecular structure of ethyl 1′-benzyl-7-methoxy-3,3-dimethyl-1,2′-dioxo-5′-phenyl-1′,2,2′,3,4,10-hexahydro-1H-spiro[acridine-9,3′-pyrrole]-4′-carboxylate
作者:P. S. Silaichev、M. V. Dmitriev、Z. G. Aliev、A. N. Maslivets
DOI:10.1134/s1070428010080105
日期:2010.8
Ethyl 1-alkyl-4,5-dioxo-2-phenyl-4,5-dihydro-1H-pyrrole-3-carboxylates reacted with 3-arylamino-5,5-dimethylcyclohex-2-en-1-ones as carbon-centered 1,5-binucleophiles to give the corresponding substituted ethyl 1′-alkyl-3,3-dimethyl-1,2′-dioxo-5′-phenyl-1′,2,2′,3,4,10-hexahydro-1H-spiro[acridine-9,3′-pyrrole]-4′-carboxylates whose structure was proved by X-ray analysis.
1-烷基-4,5-二氧-2-苯基-4,5-二氢-1 H-吡咯-3-羧酸酯与3-芳基氨基5,5-二甲基环己-2-烯-1-酮反应生成碳中心的1,5-双亲核试剂得到相应的取代乙基1'-烷基-3,3-二甲基-1,2'-二氧代5'-苯基-1',2,2',3,4,10-六氢-1 H-螺[[啶-9,3'-吡咯] -4'-羧酸盐,其结构通过X射线分析证实。