SYNTHESIS OF THYL)-3-METHYL-1,8-DIHYDROCYCLOHEPTAPYRAZOL-8-ONES

Authors
PIAO MZ WANG DL LU DR IMAFUKU K
Citation
Mz. Piao et al., SYNTHESIS OF THYL)-3-METHYL-1,8-DIHYDROCYCLOHEPTAPYRAZOL-8-ONES, Journal of heterocyclic chemistry, 30(5), 1993, pp. 1241-1244
Citations number
10
Categorie Soggetti
Chemistry Inorganic & Nuclear
Journal title
Journal of heterocyclic chemistry → ACNP
ISSN journal
0022152X
Volume
30
Issue
5
Year of publication
1993
Pages
1241 - 1244
Database
ISI
SICI code
0022-152X(1993)30:5<1241:SOT>2.0.ZU;2-Z
Abstract
Reactions of 3-methyl-1,8-dihydrocycloheptapyrazol-8-one (2) with aryl amines in the presence of formaldehyde gave thyl)-3-methyl-1,8-dihydro cycloheptapyrazol-8-ones 5a-1 in good yields. 1,3,5-Tris(phenyl- and 4 -methoxyphenyl)hexahydro-1,3,5-triazine or bis(3-nitroanilino)methane, which were condensation products of arylamines and formaldehyde, also reacted with compound 2 to afford 5a,c,j, respectively.