ISSN:
0170-2041
Keywords:
Chemistry
;
Organic Chemistry
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Notes:
Syntheses with Nitriles, LXXVII. - Synthesis and Structure Analysis of 4-Amino-5-cyano-1-phenyl-3-pyridazinecarboxylatesReactions of 3-Amino-4,4-dicyano-3-butenoates (2d, e) with various aryl diazonium salts lead to 4-amino-5-cyano-1,6-dihydro-6-imino-1-phenyl-3-pyridazinecarboxylates 4a-k. In the case of 4a and 4b it is possible to isolate and to characterize the corresponding open-chain intermediates 3a and 3b. Hydrolysis of 4c gives a product, which can be identified by X-ray structure analysis as an inner salt of 4-amino-5-cyano-1,6-dihydro-6-imino-1-phenyl-3-pyridazinecarboxylic acid (5).
Additional Material:
2 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/jlac.198719870844