1439. Bromotoluene
C7H7Br; mol wt 171.03.
C 49.16%, H 4.13%, Br 46.72%.
Description and references
Prepn of o-isomer: Bourgeois, Ber. 28, 2312 (1895). Prepn of m-isomer: Acree, Ber. 37, 994 (1904). Kohn, Bum, Monatsh. Chem. 33, 924 (1912); Feitler, Z. Phys. Chem. 4, 77 (1889). Prepn of m-, o- and p-isomers: Bigelow et al., Org. Synth. coll. vol. I (2nd ed., 1941) pp 133, 135, 136 resp. Isomerization of p-isomer yields mixture of monobromotoluenes containing 48.2% of o-isomer: Crump, US 3077503 (1963 to Dow). Separation of o- and p-isomers by clathration: Coscia, US 3114784 (1963 to Am. Cyanamid).
