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Efficient exploration of [DMAPTs]+Cl− for base free and chromatography free preparation of sulfonate esters from phenols and alcohols and sulfonamides from amines was achieved in excellent yields. Majority of the phenols irrespective of their substituents electronic nature underwent tosylation nearly at same reaction rate with an average yield of 95%. For amines, ring activating substituents favors...
[DMAPTs]+Cl− was employed as a new facile unprecedented regioselective tosylation procedure for 2-ene 4,5,6,7-polyol derived from d-ribose involving chemoselective ditosylation and regioselective allylic tosyl hydrolysis upon work up with sat. NaCl (brine) solution in a single operation by minimizing the side products obtained under classical regioselective tosylation. The same reagent was also employed...
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