반응 #1990602

반응 방정식

1,20-eicosanedicarboxylic acid monomethyl ester

thionyl chloride

→

methyl 21-chloroformylheneicosanoate

반응 조건

후처리

1. 1
   workup.DISTILLATIONexcess thionyl chloride is distilled off under reduced pressure

실험 절차

One gram of 1,20-eicosanedicarboxylic acid monomethyl ester is dissolved in 5 ml of thionyl chloride. After stirring at room temperature for 12 hours, excess thionyl chloride is distilled off under reduced pressure to give crude crystals of methyl 21-chloroformylheneicosanoate. This product is submitted to the following step without purification.

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