(S)-methyl 2-diazo-4-((S)-2,4,5,6,7,7a-hexahydro-1H-inden-7a-yl)-3-oxopentanoate 在
dirhodium(II) tetrakis(caprolactam) 作用下,
以
1,2-二氯乙烷 为溶剂,
反应 1.0h,
以94%的产率得到(1R,3S,3aR,9aR)-methyl 3-methyl-2-oxo-2,3,4,5,7,8,9,9a-octahydro-1Hcyclopenta[d]indene-1-carboxylate