期刊
CHEMISTRY-A EUROPEAN JOURNAL
卷 20, 期 47, 页码 15618-15624出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/chem.201403786
关键词
alcohols; direct oxidative esterification; iron; mechanistic study; transition-metal-free
资金
- UGC, New Delhi, India
- DST
- CSIR, India [P81102, SB/S5/GC-05/2013]
The present article describes novel oxidative protocols for direct esterification of alcohols. The protocols involve successful demonstrations of both cross and self esterification of a wide variety of alcohols. The cross-esterification proceeds under a simple transition-metal-free condition, containing catalytic amounts of TEMPO (2,2,6,6-tetra-methyl-1-piperidinyloxy)/TBAB (tetra-n-butylammonium bromide) in combination with oxone (potassium peroxo monosulfate) as the oxidant, whereas the self-esterification is achieved through simple induction of Fe(OAc)(2)/dipic (dipic=2,6-pyridinedicarboxylic acid) as the active catalyst under an identical oxidizing environment.
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