In:
Canadian Journal of Chemistry, Canadian Science Publishing, Vol. 62, No. 11 ( 1984-11-01), p. 2456-2463
Abstract:
Photolysis of 4-diazo-2-pyrazolin-5-ones in methanol gives a mixture of stereoisomeric methyl 3-aryl-(or alkyl-)azo-2-alkenoates. A study of the absorption spectra of the species generated upon steady-state photolyses in glasses at 77 K, in solution at 296 K, and by laser and lamp flash photolysis experiments suggests that a long-lived heterocyclic intermediate that we formulate as a carbene or its valence isomer, as well as a ketene generated by ring opening, are precursors to the esters.
Type of Medium:
Online Resource
ISSN:
0008-4042
,
1480-3291
Language:
English
Publisher:
Canadian Science Publishing
Publication Date:
1984
detail.hit.zdb_id:
1482256-8
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