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Carbenic Behaviour of Isocyanoamines generated by Flash Pyrolysis of 4‐Arylhydrazono‐isoxazol‐5‐ones. Rearrangement to Cyanamides and Indazoles. Preliminary communication
Author(s) -
Reichen Werner,
Wentrup Curt
Publication year - 1976
Publication title -
helvetica chimica acta
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.74
H-Index - 82
eISSN - 1522-2675
pISSN - 0018-019X
DOI - 10.1002/hlca.19760590739
Subject(s) - chemistry , nitrile , acetonitrile , flash vacuum pyrolysis , pyrolysis , deuterium , flash (photography) , organic chemistry , photochemistry , medicinal chemistry , combinatorial chemistry , art , physics , quantum mechanics , visual arts
Flash pyrolysis of the 4‐arylhydrazono‐3‐methyl‐isoxazol‐5‐one ( 1 ) yields carbon dioxide, acetonitrile, and isocyanoarylamines 2 which under the reaction conditions rearrange to either arylcyanamides 3 or indazoles 4 . It is shown by deuterium labelling that only the isocyanoamines not the isomeric nitrile imines are intermediates in the formation of indazoles.