Urethane protected derivatives of 1-guanylpyrazole for the mild and efficient preparation of guanidines
摘要:
Bis-urethane protected derivatives of 1-guanylpyrazole were prepared and found to readily react with relatively unreactive amines at room temperature to produce bis-protected guanidines in good yields. Simultaneous removal of both protecting groups from these products efficiently produced monosubstituted guanidines.
Urethane protected derivatives of 1-guanylpyrazole for the mild and efficient preparation of guanidines
摘要:
Bis-urethane protected derivatives of 1-guanylpyrazole were prepared and found to readily react with relatively unreactive amines at room temperature to produce bis-protected guanidines in good yields. Simultaneous removal of both protecting groups from these products efficiently produced monosubstituted guanidines.