2148. 3-Chloro-2-methyl-1-propene

Nomenclature

CAS number: 563-47-3
γ-Chloroisobutylene; methallylchloride; β-methallyl chloride; β-methylallylchloride.
C4H7Cl; mol wt 90.55.
C 53.06%, H 7.79%, Cl 39.15%.

Description and references

Prepn by chlorination of isobutylene: Burgin et al., Ind. Eng. Chem. 31, 1413 (1939). Manuf: Carlson, US 2494034; Cherniavsky, Brown, US 2612530; Cheney et al., US 2642464 (1950, 1952, 1953 all to Shell).

Chemical structure

Properties

Liquid, bp 71-72°. d415 0.9210, d420 0.9165 (commercial grade d2020 0.926-0.930). nD15 1.4318, nD20 1.4274.

Caution

This substance is reasonably anticipated to be a human carcinogen: Report on Carcinogens, Eleventh Edition (PB2005-104914, 2004) p III-57.

Use

Insecticide, fumigant. Chemical intermediate in organic syntheses.