Pyridazines 93. an unexpected reaction behaviour of 3-aminopyridazine towards 2-methylphenylisocyanate

Reaction of 3‐aminopyridazine (1) with 2‐mefhylphenylisocyante (4) affords not only the desired urea derivative (5) but also an unexpected side‐product (6), which could be identified as the corresponding biuret derivative by means of elemental and spectroscopic data as well as crystal structure dete...

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Bibliographic Details
Published in:	Journal of heterocyclic chemistry Vol. 38; no. 4; pp. 945 - 948
Main Authors:	Heinisch, Gottfried, Hetzenauer, Alfred, Matuszczak, Barbara, Rakowitz, Dietmar, Mereiter, Kurt
Format:	Journal Article
Language:	English
Published:	Hoboken Wiley-Blackwell 01-07-2001 Wiley‐Blackwell
Online Access:	Get full text
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Summary:	Reaction of 3‐aminopyridazine (1) with 2‐mefhylphenylisocyante (4) affords not only the desired urea derivative (5) but also an unexpected side‐product (6), which could be identified as the corresponding biuret derivative by means of elemental and spectroscopic data as well as crystal structure determination.
Bibliography:	For part 92 see G. Heinisch, B. Matuszczak, E. Spielmann, M. Witvrouw, C. Pannecouque, and E. De Clercq, J. Heterocyclic Chem., 38, 125 (2001) istex:D6589A681D3C9F3ED0CB0CEB72A1014B413AF14A ark:/67375/WNG-4C1KR4S9-6 ArticleID:JHET5570380421
ISSN:	0022-152X 1943-5193
DOI:	10.1002/jhet.5570380421