ChemInform Abstract: Amidinoyl Isothiocyanates in the Synthesis of Condensed Quinazolines. Preparation of 3-Aryl-5,9-disubstituted s-Triazolo(4,3-c)quinazolines

ChemInform ◽  
2010 ◽  
Vol 22 (47) ◽  
pp. no-no
Author(s):  
K. SPIRKOVA ◽  
S. STANKOVSKY
Keyword(s):  
Condensed Quinazolines

Amidinoyl isothiocyanates in the synthesis of condensed quinazolines. Preparation of S-triazolo[4,3-c]quinazolines

1984 ◽  
Vol 49 (8) ◽  
pp. 1795-1799 ◽  
Author(s):  
Štefan Stankovský ◽  
Mária Sokyrová
Keyword(s):  
Nmr Spectra ◽  
H Nmr ◽  
Ethyl Orthoformate ◽  
Condensed Quinazolines

The s-triazolo[4,3-c]quinazolines were obtained from 4-hydrazinoquinazolines by condensation with ethyl orthoformate. 4-Hydrazinoquinazoline were prepared by hydrazinolysis of corresponding quinazoline-4-thiones which in turn were obtained by isomerization of amidinoyl isothiocyanates. The infrared and 1H NMR spectra of the final products are interpreted.

Synthesis and structure of some condensed quinazolines

1990 ◽  
Vol 1990 (8) ◽  
pp. 815-817 ◽  
Author(s):  
Mohamed A. Badawy ◽  
Sayed A. Abdel-Hady ◽  
Ahmed H. Mahmoud ◽  
Yehia A. Ibrahim
Keyword(s):  
Condensed Quinazolines

Synthesis of some new condensed quinazolines

1963 ◽  
Vol 50 (24) ◽  
pp. 732-732 ◽  
Author(s):  
G. S. Sidhu ◽  
G. Thyagarajan ◽  
Nagabhushan Rao
Keyword(s):  
Condensed Quinazolines

ChemInform Abstract: Synthesis and Structure of Some Condensed Quinazolines.

ChemInform ◽  
1990 ◽  
Vol 21 (44) ◽  
Author(s):  
M. A. BADAWY ◽  
S. A. ABDEL-HADY ◽  
A. H. MAHMOUD ◽  
Y. A. IBRAHIM
Keyword(s):  
Condensed Quinazolines

Amidinoyl isothiocyanates in the synthesis of condensed quinazolines. Preparation of 3-aryl-5,9-disubstituted s-triazolo[4,3-c]quinazolines

1991 ◽  
Vol 56 (8) ◽  
pp. 1719-1724 ◽  
Author(s):  
Katarína Špirková ◽  
Štefan Stankovský
Keyword(s):  
Nmr Spectra ◽  
Oxidative Cyclization ◽  
H Nmr ◽  
Condensed Quinazolines

3-Aryl-5-((4-phenyl)piperazinyl)-9-chloro-s-triazolo[4,3-c]quinazolines were prepared by an oxidative cyclization of the corresponding arylhydrazones. The IR and 1H NMR spectra of final products are presented.

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