The (3R,5S)-5-(Hydroxymethyl)-1-tosylpyrrolidin-3-ol, with the CAS registry number 5605-46-9, is also known as N-Tosylhydroxy-L-prolinol. This chemical's molecular formula is C12H17NO4S and molecular weight is 271.33.
Preparation: this chemical can be prepared by trans-4-hydroxy-1-(toluene-4-sulfonyl)-L-proline by heating. This reaction will need reagent BH3 and solvent tetrahydrofuran with the reaction time of 10 hours. The yield is about 88%.
Uses of (3R,5S)-5-(Hydroxymethyl)-1-tosylpyrrolidin-3-ol: it can be used to produce toluene-4-sulfonic acid 4-hydroxy-1-(toluene-4-sulfonyl)-pyrrolidin-2-ylmethyl ester at the temperature of -20 °C. It will need reagent pyridine with the reaction time of 2 hours. The yield is about 90%.
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