NMR experiments unequivocally show that the by-product obtained from the ZnI2-promoted reaction of an allyltrimethylsilane with 3-butyn-2-one is a [2+2] cycloaddition compound. This fact corroborates our previously described assignment. In the experimental conditions used, the reaction occurs without 13-silyl shift.
SNIDER B. B.; RODINI D. J.; CONN R. S. E.; SEALFON S., J. AMER. CHEM. SOC., 1979, 101, NO 18, 5283-5293
作者:SNIDER B. B.、 RODINI D. J.、 CONN R. S. E.、 SEALFON S.