三氯乙烯 、
dimethyl 3-dehydrogibberellenate 以
二氯甲烷 为溶剂,
反应 2.0h,
以43%的产率得到dimethyl (4S,5S,5aR,8S)-1,1,2-trichloro-8-hydroxy-4-methyl-7-methylene-3-oxo-2,2a,3,4,4a,5,6,7,8,9,10,10c-dodecahydro-1H-5a,8-methanocyclobuta[5,6]benzo[1,2-a]azulene-4,5-dicarboxylate