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Mannich reaction in the series of 7-hydroxy-3-phenoxychromones and their derivatives

✍ Scribed by M. M. Garazd; Ya. L. Garazd; A. S. Ogorodniichuk; V. V. Shilin; A. V. Turov; V. P. Khilya


Book ID
105535841
Publisher
Springer
Year
1998
Tongue
English
Weight
287 KB
Volume
34
Category
Article
ISSN
0009-3130

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## Abstract magnified image 3‐Hydroxy‐2‐(polyfluoroalkyl)chromones were obtained in good yields via the nitrozation reaction of 2‐(polyfluoroalkyl)chroman‐4‐ones with isopropyl nitrite in the presence of hydrochloric acid. Treatment of 3‐acetoxy‐2‐(trifluoromethyl)chromone with primary amines and h