Chelate-assisted synthesis of pyrazolylidene derivatives from cyanoacetic acid hydrazide and O-methyl lactims
Diphenylboron chelate of cyanoacetic acid hydrazide and O-methyl lactims were used to synthesize pyrrolidin-, piperidin-, and azepan-2-ylidene derivatives of 3-aminopyrazol-5-one.
Key wordscyanoacetic acid hydrazide O-methyl lactims boron chelates 3-amino-4-5-dihydropyrazol-5-one 2-ylidene derivatives
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