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2005
Substitution reactions
Substitution reactions
O 0040
Nucleophilic Acyl Substitutions of Esters with Protic Nucleophiles Mediated by
Amphoteric, Oxotitanium, and Vanadyl Species. — TiO(acac) 2 and VOCl 2 are
28- 032 found
to be environmentally friendly, water-tolerant, and easily recoverable catalysts.
They allow efficient and chemoselective transesterification of methyl and ethyl esters
as well as their conversion into amides and thioesters. A wide range of substrates reacts
successfully and diverse functional groups are tolerated. — (CHEN*, C.-T.; KUO,
J.-H.; KU, C.-H.; WENG, S.-S.; LIU, C.-Y.; J. Org. Chem. 70 (2005) 4, 1328-1339;
Dep. Chem., Natl. Taiwan Norm. Univ., Taipei 116, Taiwan; Eng.) — Jannicke
2005
Substitution reactions
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