carbonyl(η5-cyclopentadienyl){7-(2-methoxycarbonyl)-(3,3,6,6-tetramethyl-4-thia-1-azabicyclo{3.2.0}heptylidene)}(trimethyl phosphite)iron(II) trifluoromethanesulfonate 、
四丁基亚硝酸铵 以
二氯甲烷 为溶剂,
以32%的产率得到(2R,5S)-methyl 7-oxo-3,3,6,6-tetramethyl-4-thia-1-azabicyclo{3.2.0}heptane-3-carboxylate