Tetrahedron Letters p. 3183 - 3186 (1988)
Update date:2022-08-29
Topics:
Kim, Keekyung
Lin, Yi-Tsong
Mosher, Harry S.
Aminoiminomethanesulfonic acid, H2N-C(=NH)SO3H, converts primary amines to the corresponding guanidine derivatives at 20 deg C.This crystalline reagent is readily prepared by the peracetic acid oxidation of formamidinesulfinic acid, H2N-C(=NH)SO2H.The synthesis is illustrated by a representative group of simple monosubstituted guanidines shown in Table I.
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