2-oxo-3-(2-(pyrrolidin-1-yl)benzylidene)indoline-1-carboxylate 在
(Ra)-4-hydroxy-2,6-diphenyldinaphtho[1,3,2]dioxaphosphepine 4-oxide 作用下,
以
1,2-二氯乙烷 为溶剂,
反应 6.0h,
生成 ethyl 2-oxo-2',3',3a',5'-tetrahydro-1'H-spiro[indoline-3,4'-pyrrolo[1,2-a]quinoline]-1-carboxylate 、 ethyl 2-oxo-2',3',3a',5'-tetrahydro-1'H-spiro[indoline-3,4'-pyrrolo[1,2-a]quinoline]-1-carboxylate 、 ethyl 2-oxo-2',3',3a',5'-tetrahydro-1'H-spiro[indoline-3,4'-pyrrolo[1,2-a]quinoline]-1-carboxylate 、 ethyl 2-oxo-2',3',3a',5'-tetrahydro-1'H-spiro[indoline-3,4'-pyrrolo[1,2-a]quinoline]-1-carboxylate