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B. O’Connor and G. Just, “A New Method for the Conversion of Aldehydes to Methyl Esters Using Pyridinium Dichromate and Methanol in Dimethylformamide,” Tetrahedron Letters, Vol. 28, No. 28, 1987, pp. 3235-3236.
http://dx.doi.org/10.1016/S0040-4039(00)95480-7

has been cited by the following article:

• TITLE: Oxone-Mediated Oxidative Esterification of Heterocyclic Aldehydes Using Indium(III) Triflate

  AUTHORS: Tomoko Mineno, Saki Yoshino, Akira Ubukata

  KEYWORDS: Oxidative Esterification; Heterocyclic Aldehydes; Indium(III) Triflate

  JOURNAL NAME: Green and Sustainable Chemistry, Vol.4 No.1, February 14, 2014

  ABSTRACT: Recent investigations have shown the oxone-mediated oxidative methyl esterification of benzaldehyde derivatives using methanol. The reactions were accelerated in the presence of indium(III) triflate, a trivalent indium reagent, in many cases. Based on this method of methyl esterification of benzaldehyde derivatives, we further explored an application to heterocyclic aldehydes. The reactions were examined using methanol as well as other alcohols in order to establish a suitable range.