VERFAHREN ZUR HERSTELLUNG VON (DIOXOLENON-4- YL)METHYLESTER-DERIVATE
There is provided a method by which various compounds (1) having a carboxyl group in the molecule have the carboxyl group converted to a (dioxolenon-4-yl)methyl ester at low cost, in a simple way and at high yield. The process for producing compounds of formula (3) according to the reaction scheme s...
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| creator | TAKASE, MITSURU MORI, SHIGEO WATAI, TOSHIYUKI SAGAE, TAKAHIRO KAWAHARA, NORIAKI |
| description | There is provided a method by which various compounds (1) having a carboxyl group in the molecule have the carboxyl group converted to a (dioxolenon-4-yl)methyl ester at low cost, in a simple way and at high yield. The process for producing compounds of formula (3) according to the reaction scheme shown below comprises reacting carboxylic acids of formula (1) with 4-chloromethyldioxolenone compounds of formula (2) in a solvent in the presence of both a phase transfer catalyst and a metal iodide: Äwhere Q represents an organic group, M represents a hydrogen atom, an alkali metal, an alkaline earth metal or a transition metal, R1 and R2 represent a hydrogen atom, an optionally substituted (C1-6 alkyl group or phenyl group)Ü. |
| format | Patent |
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| subjects | CHEMISTRY HETEROCYCLIC COMPOUNDS METALLURGY ORGANIC CHEMISTRY |
| title | VERFAHREN ZUR HERSTELLUNG VON (DIOXOLENON-4- YL)METHYLESTER-DERIVATE |
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