Monomethyl terephthalate → Methyl 4-(chlorocarbonyl)benzoate

Participants

Reaction Conditions

Reaction Steps

A suspension of 5 g of the acid, prepared in section (a) above, in 50 cm3 of thionyl chloride is heated for 3 hours at 40° C. At the end of the reaction, the reaction medium is homogenized and the solution is concentrated under reduced pressure. The expected acid chloride crystallizes in the form of pink flakes. The yield is quantitative. This solid is employed directly for the condensation reaction.

Provenance & Evidence