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2005
Esterification
O 0315
A General Procedure for the Esterification of Carboxylic Acids with Diazoalkanes
in situ by the Oxidation of N-tert-Butyldimethylsilylhydrazones with
05- 052 Generated
(Difluoroiodo)benzene. — The title method appears to be widely applicable with regard to both diazo precursors and carboxylic acid substrates. Many functional groups
are found to be unaffected. The reaction conditions can be considered to be essential
neutral since a number of acetals and ketals are efficiently transformed, e.g. the exceedingly base-labile aldehyde (Ig)(to be continued). — (FURROW, M. E.; MYERS*, A.
G.; J. Am. Chem. Soc. 126 (2004) 39, 12222-pp; Dep. Chem. Chem. Biol., Harvard
Univ., Cambridge, MA 02138, USA; Eng.) — Klein
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