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An Approach to the Paal—Knorr Pyrroles Synthesis Catalyzed by Sc(OTf)3 under Solvent-Free Conditions.

✍ Scribed by Jiuxi Chen; Huayue Wu; Zhiguo Zheng; Can Jin; Xingxian Zhang; Weike Su


Publisher
John Wiley and Sons
Year
2006
Weight
20 KB
Volume
37
Category
Article
ISSN
0931-7597

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## Abstract Benzoxazole derivatives have been prepared through the reaction of substituted 2‐aminophenols and acyl chlorides in the presence of catalytic amount of In(OTf)~3~ under solvent‐free reaction conditions in good to excellent yields. The method is simple, convenient, environmental‐friendly