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Preparation of 3-substituted isocoumarins in the reactions of homophthalic anhydride and its derivatives

โœ Scribed by D. Kh. Mutsenietse; Yu. T. Rotberg


Book ID
112329354
Publisher
Springer US
Year
1977
Tongue
English
Weight
265 KB
Volume
13
Category
Article
ISSN
0009-3122

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Treatment of 3,4-di-t-butylthiophene 1-oxide with (CF 3 CO) 2 O or (CF 3 SO 2 ) 2 O, followed by reaction with RSO 2 NH 2 , ROC( O)NH 2 , or RCONH 2 furnished a series of 1-imino derivatives of 3,4-di-t-butylthiophene, which carry an electron-withdrawing substituent on the imino nitrogen atom. Treat