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1-Chloro-2-azapropenylium and 1-chloro-2,4-diazabutenylium salts. Intermediates for the synthesis of pyrido[1,2-a]-1,3,5-triazinium salts

โœ Scribed by George Bosah Okide


Book ID
112130476
Publisher
Journal of Heterocyclic Chemistry
Year
1992
Tongue
English
Weight
312 KB
Volume
29
Category
Article
ISSN
0022-152X

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Synthesis of 1,2,3-Triazolo[1,5-a]quinox
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With sodium borohydride in tetrahydrofuran/ethanol (5 : 1). the product ( I ) gives a 75 yield of a compound, m.p. 233 "C, that is identical with the recently prepared 2-(diphenylmethyl)imidaz0le[~1. When product ( I ) is boiled for 2 h in tetrahydrofuran/water (2: I ) it affords 2-(hydroxy-dipheny