Oxalyl chloride → 7-Chlorocarbonyl-2-oxohexahydro-3,5-methano-2H-cyclopenta[b]furane-6-yl Methacrylate

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Reaction Steps

Suspended into 135 mL of toluene was 18.0 g of the carboxylic acid (26) obtained in Synthesis Example 1-1-2, and then into the resulting suspension was gradually added 10.3 g of oxalyl chloride at 80° C. After this mixture was stirred for 4 hours, toluene was removed by distillation under reduced pressure to obtain the intended product. The obtained acid chloride was used in the next reaction without further purification.

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