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A 21.5g (0.25 mole) portion of 2-imidazolidinone in 250 ml of dimethylsulfoxide was treated with 34.5 g (0.25 mole) of K2CO3, 20 g (0.12 mole) of KI and 44.3 g (0.25 mole) of 2-(chloromethyl)-naphthalene. The reaction mixture was heated to 105° over 0.3 hours, held at 105°-110° for 1.8 hours and poured with rapid stirring into 1.5 l of water. The aqueous mixture was extracted with 1.3 l of chloroform. The chloroform extract was washed with 500 ml of water, dried over MgSO4 overnight and filtered. The filtrate was concentrated to dryness to give 31.5 g (56%) of a light yellow solid, m.p. 102 soften, 120°-138°.

1. temperatureThe reaction mixture was heated to 105° over 0.3 hours
2. additionpoured
3. extractionThe aqueous mixture was extracted with 1.3 l of chloroform
4. extractionThe chloroform extract
5. washwas washed with 500 ml of water
6. dry with materialdried over MgSO4 overnight
7. filtrationfiltered
8. concentrationThe filtrate was concentrated to dryness