32276-00-9Relevant articles and documents
A mild method for the protection of alcohols using a para-methoxybenzylthio tetrazole (PMB-ST) under dual acid-base activation
Kotturi, Santosh R.,Tan, Jason S.,Lear, Martin J.
supporting information; experimental part, p. 5267 - 5269 (2009/12/24)
With a view to expand the repertoire of chemoselective methods applicable to sensitive and multifunctional substrates, the p-methoxybenzylation of alcohols under essentially neutral conditions is reported. This was achieved by the silver triflate (AgOTf) activation of 5-(p-methoxybenzylthio)-1-phenyl-1H-tetrazole (PMB-ST) in the presence of 2,6-di-tert-butyl-4-methylpyridine (DTBMP).
S,S'-Bis(1-phenyl-1H-tetrazol-5-yl) Dithiocarbonate: A New Esterification Reagent
Takeda, Kazuyoshi,Tsuboyama, Kanoko,Takayanagi, Hiroaki,Ogura, Haruo
, p. 560 - 562 (2007/10/02)
S,S'-Bis(1-phenyl-1H-tetrazol-5-yl) dithiocarbonate is a useful reagent for the esterification of carboxylic acids with alcohols, including lactonization.The reagent is conveniently prepared in good yield from 1-phenyl-5-thioxo-4,5-dihydro-1H-tetrazole and trichloromethyl chloroformate (trichloromethyl carbonochloridate) in ethyl acetate in the presence of triethylamine.Its structure was confirmed by (13)C-NMR spectrometry and single-crystal X-ray analysis.