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N-Protection of amines using pyridinium 2,2,2-trifluoroacetate ionic liquid as an efficient and reusable catalyst 被引量:1
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作者 Somaye Karimian Hassan Tajik 《Chinese Chemical Letters》 SCIE CAS CSCD 2014年第2期218-220,共3页
A simple, green, and efficient method for the N-tert-butoxycarbonylation of amines by pyridinium 2,2,2- trifluoroacetate ([Py][OTf]) as an efficient and reusable catalyst is reported. In general, electron donating g... A simple, green, and efficient method for the N-tert-butoxycarbonylation of amines by pyridinium 2,2,2- trifluoroacetate ([Py][OTf]) as an efficient and reusable catalyst is reported. In general, electron donating groups on aryl group give rise to the higher yields than electron withdrawing groups. Clean reaction, short reaction times, high yields, reusability of catalyst, and easy preparation of it are some advantages of this work. 展开更多
关键词 Ionic liquid Pyridinium 2 2 2-trifluoroacetate N-Boc protection tert-butoxycarbonylation Amine
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