Add time:10/01/2019 Source:sciencedirect.com
We report herein stereoselective additions of a nitrene derived from PhI(OAc)2 and 2,4-dinitrophenylsulfenamide with methylenecyclopropanes (MCPs) and a METHYLENECYCLOBUTANE (cas 1120-56-5) (MCB) to give the corresponding ring enlargement products, (cyclobutylidene)amide or (cyclopentylidene)amide derivatives, in moderate to excellent yields. The reaction mechanism has been discussed on the basis of control experiments and previous investigation.
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