描述:
dimethyl (10-(prop-2-yn-1-yloxy)-3a,8-dihydro-3,8-ethenoindeno[2,1-c]pyrazol-8a(3H)-yl)phosphonate 以
xylene 为溶剂,
反应 0.25h,
以85%的产率得到((1R,6bS,6cS)-2-Oxo-1-propa-1,2-dienyl-2,2a,2b,6b-tetrahydro-1H-benzo[a]cyclopropa[cd]pentalen-6c-yl)-phosphonic acid dimethyl ester