Chemistry Letters p. 2299 - 2302 (1994)
Update date:2022-08-04
Topics:
Yamamoto, Noboru
Isobe, Minoru
Trichloroacetamides obtained via Overman <3,3> sigmatropic rearrangement were converted into dibenzyl guanidines.The key step was conversion of carbodiimide intermediate into guanidine by scandium or ytterbium trifluoromethane-sulfonates.This method was a
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