Methyl triflate
Methyl triflate (CAS: 333-27-7), also known as methyl trifluoromethanesulfonate, is one of the most powerful methylating agents available in organic synthesis, combining the excellent leaving-group ability of triflate with high electrophilicity at the methyl carbon. This colorless to pale liquid methylates alcohols, phenols, carboxylic acids, amines, and thiols under mild conditions, often at low temperatures, with minimal formation of elimination byproducts. It is invaluable in glycosylation chemistry for forming methyl glycosides, in carbohydrate protection schemes, and in the synthesis of quaternary ammonium compounds and methyl esters. Extreme moisture sensitivity requires handling under inert, anhydrous conditions, and its potent alkylating power demands strict safety protocols. Despite these handling requirements, its efficiency and selectivity make methyl triflate the reagent of choice for demanding methylation tasks in complex molecule synthesis and pharmaceutical research.
– O-Methylation: Used to methylate alcohols and phenols to methyl ethers under mild conditions where dimethyl sulfate or methyl iodide are insufficiently reactive.
– Glycoside Formation: Serves as a powerful promoter in glycosylation reactions for synthesizing methyl glycosides and oligosaccharide intermediates.
– N-Methylation: Applied in the methylation of amines, amides, and heterocycles to form methylated derivatives and quaternary ammonium salts.
– Ester Formation: Employed to convert carboxylic acids into methyl esters for protection, derivatization, and analytical characterization.
Product Name: Methyl triflate
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