Phenothiazine → N-(2-acryloxyethyl)-2,2,4-trimethyldecahydroquinoline

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Following the method described in U.S. Pat. No. 3,872,161, the title compound was prepared by reacting 1 mole of 1-(2-hydroxyethyl)-2,2,4-triethyldecahydroquinoline (hereinafter referred to as HETDQ) with 3 moles methylacrylate in the presence of 0.8 gram phenothiazine and 13 grams zinc carbonate. The above mixture was heated to 87° C. in a 1 liter 3-necked flask equipped with a fractionating column. The pot temperature was gradually increased to a maximum of 164° C. while methanol and other lower boiling point liquid fractions were collected. The reaction took four days.

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