Thermal Cyclocondensation of Ethyl (1-Methyl-5- and 6-Benzimidazolyl/benzotriazolyl)aminomethylenepropanedioates

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Title:Thermal Cyclocondensation of Ethyl (1-Methyl-5- and 6-Benzimidazolyl/benzotriazolyl)aminomethylenepropanedioates
Creators:
Milata, Viktor
Ilavský, Dušan
Goljer, Igor
Zalibera, Lubomír
Journal or Publication Title:
Collection of Czechoslovak Chemical Communications, 59, 5, pp. 1145-1152

Abstract

<p>Thermal cyclocondensation of starting ethyl (1-methyl-5- and 6-benzimidazolyl/benzotriazolyl)aminomethylenepropanedioates (<i>Ia</i> - <i>Ie</i>) in aprotic medium gives angularly condensed ethyl azolo[4,5-<i>f</i>]quinolonecarboxylates <i>IIa</i>, <i>IIc</i>, <i>IIe</i> and azolo[5,4-<i>f</i>]quinolonecarboxylates <i>IIb</i>, <i>IId</i>, respectively, which are hydrolyzed to the corresponding carboxylic acid <i>III</i> in acid medium. The structure of reaction products has been confirmed by <sup>1</sup>H and <sup>13</sup>C NMR, IR, and UV spectroscopy.

Title:Thermal Cyclocondensation of Ethyl (1-Methyl-5- and 6-Benzimidazolyl/benzotriazolyl)aminomethylenepropanedioates
Creators:
Milata, Viktor
Ilavský, Dušan
Goljer, Igor
Zalibera, Lubomír
Divisions:Life and Chemical Sciences > Institute of Organic Chemistry and Biochemistry > Collection of Czechoslovak Chemical Communications
Journal or Publication Title:Collection of Czechoslovak Chemical Communications
Volume:59
Number:5
Page Range:pp. 1145-1152
ISSN:0010-0765
E-ISSN:1212-6950
Publisher:Institute of Organic Chemistry and Biochemistry
Related URLs:
URLURL Type
http://dx.doi.org/10.1135/cccc19941145UNSPECIFIED
ID Code:533
Item Type:Article
Deposited On:06 Feb 2009 17:01
Last Modified:06 Feb 2009 16:01

Citation

Milata, Viktor; Ilavský, Dušan; Goljer, Igor; Zalibera, Lubomír (1994) Thermal Cyclocondensation of Ethyl (1-Methyl-5- and 6-Benzimidazolyl/benzotriazolyl)aminomethylenepropanedioates. Collection of Czechoslovak Chemical Communications, 59 (5). pp. 1145-1152. ISSN 0010-0765

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