反应详情

Diethyl 6-chloro-1,2,3,4-tetrahydrocarbazole-2,3-dicarboxylate was subjected instead of the N-benzyl-1,2,3,4-tetrahydrocarbazole-3,4-dicarboximide to the same reaction as in Reference Example 1 (3), to obtain diethyl 6-chlorocarbazole-2,3-dicarboxylate as colorless crystals.