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Chemoselective Alkylation of 3- and 4-(5-Amino-4-hetaryl-2,3-dihydro-3-oxopyrrol-1-yl)benzoic Acids

✍ Scribed by E. V. Resnyanskaya; A. V. Tverdokhlebov; Yu. M. Volovenko; T. V. Shokol


Book ID
111609194
Publisher
SP MAIK Nauka/Interperiodica
Year
2004
Tongue
English
Weight
58 KB
Volume
40
Category
Article
ISSN
1070-4280

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## Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.

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In the structure of the title compound, C 16 H 18 N 2 O 4 , intermolecular N-HÁ Á ÁO [NÁ Á ÁO = 2.866 (3) A ˚] and O-HÁ Á ÁO [OÁ Á ÁO = 2.611 (3) A ˚] hydrogen bonds link molecules into a two-dimensional framework. The crystal structure is further stabilized by weak intermolecular C-HÁ Á ÁO interact

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The title compound, C 19 H 17 N 3 O 3 ÁCH 3 OH, was synthesized by the reaction of 4-amino-1,5-dimethyl-2-phenyl-1,2-dihydropyrazol-3-one and 4-formylbenzoic acid in methanol solution. As expected, the antipyrine derivative adopts a trans configuration about the central C N bond. In the crystal stru