Benzene → HCID 11480596, compound

To a 1-liter, 3-necked flask equipped with a mechanical stirrer, reflux condenser and dropping funnel was charged 86 g. (2.0 mole) of aziridine, 66 g. of 85% powdered KOH (1.0 mole) and 400 ml. of benzene. The mixture was stirred and heated to reflux and 76.25 g. (0.5 mole) of ar-vinylbenzyl chloride containing 0.1% by weight of p,p'-diphenylphenylene diamine inhibitor was added over 15 minutes. The ar-vinylbenzyl chloride was an isomeric mixture consisting of approximately 60-70% meta isomer and 40-30% para isomer. The reaction mixture was then stirred rapidly under reflux for four hours, cooled to room temperature, filtered through a filter cell and the filtrate concentrated at reduced pressure to give 72.4 g. (91.1%) of crude product. This crude product was distilled at reduced pressure to give 63.1 g. (79.4%) of water-white N-ar-vinylbenzylaziridine b.p. 72°-73°/0.6 mm. whose identity was established by IR and NMR. Its purity was found to be greater than 99% by vapor phase chromatography on a G.E. silicone column (10 ft. × 1/4 in.) at 200° C. and 60 ml./min. helium flow rate.

1. customTo a 1-liter, 3-necked flask equipped with a mechanical stirrer
2. temperaturereflux condenser
3. additionwas charged 86 g
4. temperatureheated
5. temperatureto reflux
6. stirringThe reaction mixture was then stirred rapidly
7. temperatureunder reflux for four hours
8. filtrationfiltered through a filter cell
9. concentrationthe filtrate concentrated at reduced pressure
10. customto give 72.4 g
11. distillationThis crude product was distilled at reduced pressure
12. customto give 63.1 g
13. customat 200° C.

ORD record

ord-4d1ac33f9c974ed3916db9719f3d25f7

Source dataset

uspto-grants-1976_12

DOI

10.6084/m9.figshare.5104873.v1

Patent number

US03996204