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Synthesis of poly-substituted pyrazolo[1,5-a]quinolines through one-pot two component cascade reaction

✍ Scribed by Kato, Jun-ya; Ijuin, Ryosuke; Aoyama, Hiroshi; Yokomatsu, Tsutomu

Book ID
121688701
Publisher
Elsevier Science
Year
2014
Tongue
French
Weight
719 KB
Volume
70
Category
Article
ISSN
0040-4020

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We have discovered a new reaction whereby 2-substituted azoles are formed in the reaction of an azolium ylide with reactive carbonyl compounds. These products contain a leaving group in the a-position, which on solvolysis in the presence of nucleophiles yield azoles with a variety of a-substituents.