N-[(4S)-3-ethenyl-6-methyl-3-prop-2-enoxyhept-1-en-4-yl]-4-methyl-N-prop-2-enylbenzenesulfonamide 在
Grubbs catalyst first generation 作用下,
以
氯仿 为溶剂,
反应 2.0h,
生成 (5S,10S)-9-(4-methylphenyl)sulfonyl-10-(2-methylpropyl)-1-oxa-9-azaspiro[4.5]deca-3,6-diene 、 (5R,10S)-9-(4-methylphenyl)sulfonyl-10-(2-methylpropyl)-1-oxa-9-azaspiro[4.5]deca-3,6-diene