Ujjinamatada, Ravi K.; Agasimundin, Yankanagouda S., Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 2007, vol. 46, # 3, p. 540 - 543
GATTA, F.;SETTIMJ, G., J. HETEROCYCL. CHEM., 1984, 21, N 4, 937-943
作者:GATTA, F.、SETTIMJ, G.
DOI:——
日期:——
Ujjinamatada, Ravi K.; Agasimundin, Yankanagouda S., Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 2007, vol. 46, # 3, p. 540 - 543
作者:Ujjinamatada, Ravi K.、Agasimundin, Yankanagouda S.
DOI:——
日期:——
Reaction of 2-acyl-3-aminobenzofurans with hydrazines
作者:Franco Gatta、Guido Settimj
DOI:10.1002/jhet.5570210401
日期:1984.7
While 2-acetyl and 2-benzoyl-3-aminobenzofurans did not react with hydrazine, monomethyl- and N,N-dimethylhydrazine to give the related hydrazones, their 3-N-(p-toluenesulfonyl) derivatives afforded them smoothly in good yields. Depending upon reaction conditions, products arising from hydrazone cyclization to benzofuropyrazoles and/or from furan ring cleavage at the C2O bond to give 5-(2-hydroxyphenyl)pyrazoles