4-氯苯磺酰氯 、 12-(4-chlorobenzenesulfonyl)-4,5,12-triazatricyclo[6.3.1.0(2,6)]dodeca-2(6),3-diene-10-carboxylic acid ethyl ester 在
Sodium sulfate-III 、 silica gel 、
ethyl acetate n-hexane 作用下,
以
吡啶 、
二氯甲烷 为溶剂,
反应 1.0h,
以to give ethyl 1,10-bis[(4-chlorophenyl)sulfonyl]-4,5,6,7,8,9-hexahydro-1H-4,8-epiminocycloocta[c]pyrazole-6-carboxylate and ethyl 2,10-bis[(4-chlorophenyl)sulfonyl]-4,5,6,7,8,9-hexahydro-2H-4,8-epiminocycloocta[c]pyrazole-6-carboxylate (57) (0.721 mmol, 1.23 mmol, quant)的产率得到ethyl 1,10-bis[(4-chlorophenyl)sulfonyl]-4,5,6,7,8,9-hexahydro-1H-4,8-epiminocycloocta[c]pyrazole-6-carboxylate