Esterification process using methoxymethyl-P-toluenesulfonate
A new esterifying agent, i.e. methoxymethyl tosylate, is provided for use in preparing methoxymethyl esters of organic carboxylic acids. The new esterifying agent is found to be particularly advantageous in the esterification of penicillin 3-carboxyl groups or cephalosporin 4-carboxyl groups to the...
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| Format: | Patent |
| Sprache: | eng |
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| Zusammenfassung: | A new esterifying agent, i.e. methoxymethyl tosylate, is provided for use in preparing methoxymethyl esters of organic carboxylic acids. The new esterifying agent is found to be particularly advantageous in the esterification of penicillin 3-carboxyl groups or cephalosporin 4-carboxyl groups to the methoxymethyl ester group. |
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