2147. 1-Chloro-2-methyl-1-propene

Nomenclature

CAS number: 513-37-1
α-Chloroisobutylene; β,β-dimethylvinyl chloride; isocrotyl chloride; 2-methyl-1-propenyl chloride.
C4H7Cl; mol wt 90.55.
C 53.06%, H 7.79%, Cl 39.15%.

Description and references

Prepn from isobutyraldehyde: Kirrmann, Bull. Soc. Chim. Fr. 1948, 163; by isomerization of 3-chloro-2-methylpropene with 80% H2SO4: Backhurst et al., J. Chem. Soc. 1959, 2742.

Chemical structure

Properties

Liquid, bp 68.1°. d420 0.9186. nD20 1.4221.

Caution

This substance is reasonably anticipated to be a human carcinogen: Report on Carcinogens, Eleventh Edition (PB2005-104914, 2004) p III-110.

Use

In organic syntheses; research chemical.