N-[(Z)-2-(5-chloro-1-methyl-2-oxoindolin-3-ylidene)-1-phenylethylidene]-4-methylbenzenesulfonamide 、
肉桂醛 在
2-mesityl-6,7-dihydro-5H-pyrrolo[2,1-c][1,2,4]triazol-2-ium tetrafluoroborate 、
1,8-二氮杂双环[5.4.0]十一碳-7-烯 作用下,
以
四氢呋喃 、
乙腈 为溶剂,
反应 24.0h,
生成 5'-chloro-1'-methyl-2,5-diphenyl-6-tosyl-6-azaspiro[bicyclo[3.2.0]heptane-3,3'-indoline]-2',7-dione 、 5'-chloro-1'-methyl-2,5-diphenyl-6-tosyl-6-azaspiro[bicyclo[3.2.0]heptane-3,3'-indoline]-2',7-dione