1,2-methyl shift in the reaction of 4,7-dihydro-4,5-dimethyl-7-phenyl-(1,2,4)-triazolo[1,5-a]pyrimidine with tosyl azide

Authors
Komykhov, SA Desenko, SM Kaganovsky, AS Orlov, VD Meier, H
Citation
Sa. Komykhov et al., 1,2-methyl shift in the reaction of 4,7-dihydro-4,5-dimethyl-7-phenyl-(1,2,4)-triazolo[1,5-a]pyrimidine with tosyl azide, J HETERO CH, 37(1), 2000, pp. 195-196
Citations number
9
Categorie Soggetti
Organic Chemistry/Polymer Science
Journal title
JOURNAL OF HETEROCYCLIC CHEMISTRY
ISSN journal
0022152X → ACNP
Volume
37
Issue
1
Year of publication
2000
Pages
195 - 196
Database
ISI
SICI code
0022-152X(200001/02)37:1<195:1SITRO>2.0.ZU;2-Z
Abstract
The reaction of the heterocyclic enamine 1 with tosyl azide (2) leads to th e tosylimino derivative 4 of 1,2,4-triazolo[1,5-a]pyrimidine. The extrusion of nitrogen from the primary adduct 3 is followed by a 1,2-shift of a meth yl group. The structure determination of 4 is based on H-1 and C-13 nmr spe ctra including NOE measurements.