反应详情

In a manner similar to the method described in example 1a, 6-chlorooxindole (1.16 g, 6.59 mmol) was reacted with cyclopentanecarbaldehyde (0.77 g, 7.85 mmol) (Wiley) and piperidine (0.67 g, 7.85 mmol) in methanol to give a mixture of E- and Z-6-Chloro-3-cyclopentylmethylene-1,3-dihydro-indol-2-one as a brown oil (Yield 0.8 g, 49%).

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