2-[N-benzyloxycarbonyl-(3-trimethylsilylprop-2-ynyl)amino]-2-methylhexa-3,4-dienoic acid methyl ester 在
di(rhodium)tetracarbonyl dichloride 作用下,
以
甲苯 为溶剂,
反应 0.17h,
以87%的产率得到2-methyl-5-trimethylsillmethylene-4-vinyl-5,6-dihydro-2H-pyridine-1,2-dicarboxylic acid 1-benzyl ester 2-methyl ester