ISSN:
0009-2940
Keywords:
as-Triazinium salt, fused
;
Zwitterion
;
Solvatochromy, negative
;
Pyridazines, fused
;
Chemistry
;
Inorganic Chemistry
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Notes:
Reaction of the furo[2,3-e]pyrido[l,2-b]-as-triazinium salt 1 with methyl hydrazine gave the zwitterionic 1-substituted pyrido-pyridazino-as-triazine 4. The neutral 2-substituted isomer 6 was formed when 1 was treated with 1-formyl-1-methylhydrazine. Reaction of 1 with 1-acyl-2-methylhydrazine gave rise to 1,3,4-trisubstituted zwitterionic derivatives of the same ring system. Efforts to synthesize aryl-substituted zwitterions led to simultaneous formation of the desired compound 12 and of a new ring transformation product, the pyrazolopyrido-as-triazine derivative 15.
Additional Material:
4 Tab.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/cber.19901230635
