Synthesis of Some 1,2,4-Triazolo[4,3-c]quinazolines Based on 4-Quinazolylthiosemicarbazides

[img]PDF - Authorized users only
Language: English
93Kb
Title:Synthesis of Some 1,2,4-Triazolo[4,3-c]quinazolines Based on 4-Quinazolylthiosemicarbazides
Creators:
Špirková, Katarína
Stankovský, Štefan
Dandárová, Miloslava
Journal or Publication Title:
Collection of Czechoslovak Chemical Communications, 59, 1, pp. 222-226

Abstract

<p>The paper describes the cyclization reactions of substituted 1-(4'-quinazolyl)-4-phenylthiosemicarbazides (<i>Ia</i> - <i>Ie</i>). The thermal intramolecular cyclization gives 2<i>H</i>-1,2,4-triazolo[4,3-<i>c</i>]quinazoline-3-thiones (<i>IIa</i> - <i>IId</i>). Heating of <i>I</i> with HgO gives 3-anilino-1,2,4-triazolo[4,3-<i>c</i>]quinazolines (<i>IIIa</i> - <i>IIIe</i>). The IR and <sup>1</sup>H NMR spectra of the compounds synthesized are presented.

Title:Synthesis of Some 1,2,4-Triazolo[4,3-c]quinazolines Based on 4-Quinazolylthiosemicarbazides
Creators:
Špirková, Katarína
Stankovský, Štefan
Dandárová, Miloslava
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:1
Page Range:pp. 222-226
ISSN:0010-0765
E-ISSN:1212-6950
Publisher:Institute of Organic Chemistry and Biochemistry
Related URLs:
URLURL Type
http://dx.doi.org/10.1135/cccc19940222UNSPECIFIED
ID Code:434
Item Type:Article
Deposited On:06 Feb 2009 17:00
Last Modified:06 Feb 2009 16:01

Citation

Špirková, Katarína; Stankovský, Štefan; Dandárová, Miloslava (1994) Synthesis of Some 1,2,4-Triazolo[4,3-c]quinazolines Based on 4-Quinazolylthiosemicarbazides. Collection of Czechoslovak Chemical Communications, 59 (1). pp. 222-226. ISSN 0010-0765

Repository Staff Only: item control page