(3aR,5S,6R,6aR)-2,2-Dimethyl-6-nitroso-5-trityloxymethyl-tetrahydro-furo[2,3-d][1,3]dioxole 、
1,3-环己二烯 以
氯仿 为溶剂,
反应 2.0h,
以72%的产率得到(1S,4R)-3-((3aR,5S,6R,6aR)-2,2-Dimethyl-5-trityloxymethyl-tetrahydro-furo[2,3-d][1,3]dioxol-6-yl)-2-oxa-3-aza-bicyclo[2.2.2]oct-5-ene