Syntheses with Unsaturated Nitriles, IX: 3(2H)‐Pyridazinones from Alkylidenemalononitrile Dimers
作者:
Maria J. Mokrosz,
期刊:
Archiv der Pharmazie
(WILEY Available online 1993)
卷期:
Volume 326,
issue 1
页码: 39-43
ISSN:0365-6233
年代: 1993
DOI:10.1002/ardp.19933260109
出版商: WILEY‐VCH Verlag
数据来源: WILEY
摘要:
AbstractThe coupling of 1‐amino‐2,6,6‐tricyanocyclohexadiene derivatives1‐3with a variety of aryldiazonium salts produces the hydrazones5‐7which in the presence of weak base in ethanol at elevated temperature furnish 2‐aryl‐4‐cyanopyridazin‐3(2H)‐ones8‐10. In boiling toluene, however, the tautomeric hydrazones
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