Abstract

Successive treatment of potassium 1,1,3,3-tetracyano-2-(2-(methoxycarbonyl)benzoyl)prop-2-enide with concentrated sulfuric acid and water gave 2-(5′-amino-4′-cyano-3-oxo-3H,3′H-spiro[[2]benzofuran-1,2′-furan]-3′-ylidene)propanedinitrile. The reaction of the title compound with sodium hydroxide, followed by neutralization with sulfuric acid afforded 4′-amino-3,3′,6′-trioxo-2′,3′,5′,6′-tetrahydro-3H-spiro[[2]benzofuran-1,1′-pyrrolo[3,4-c]pyridine]-7′-carbonitrile.

中文翻译：

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1,5,3,3-三苯甲基-2- [2-（甲氧基羰基）苯甲酰基]丙-2-烯丙基钾在螺旋熔融异苯并呋喃衍生物的合成中

摘要

用浓硫酸和水连续处理1,1,3,3-四氰基钾2-（2-（甲氧基羰基）苯甲酰基）丙-2-烯化钾，得到2-（5'-氨基-4'-氰基-3氧代-3- ħ，3' ħ -螺[[2]苯并呋喃-1,2'-呋喃] -3'-亚基）丙二腈。标题化合物与氢氧化钠反应，然后用硫酸中和，得到4'-氨基-3,3'，6'-三氧代-2'，3'，5'，6'-四氢-3 H-螺[[2]苯并呋喃-1,1'-吡咯并[3,4- c ]吡啶] -7'-腈。