Bromochlorobenzene
Bromochlorobenzenes are mixed aryl halides (aryl chloride and aryl bromide) consisting bromine and chlorine as substituents on a benzene ring.
Isomers of Bromochlorobenzene | |||
---|---|---|---|
Skeletal formula | ![]() | ![]() | ![]() |
General | |||
Common names | o-bromochlorobenzene ortho-bromochlorobenzene | m-bromochlorobenzene meta-bromochlorobenzene | p-bromochlorobenzene para-bromochlorobenzene |
Systematic name | 1-bromo-2-chlorobenzene | 1-bromo-3-chlorobenzene | 1-bromo-4-chlorobenzene |
Molecular formula | BrC6H4Cl | ||
Molar mass | 191.45 g/mol | ||
CAS number | 694-80-4 | 108-37-2 | 106-39-8 |
ChemSpider | 12230 | 13875377 | 7518 |
PubChem CID | 12754 | 7928 | 7806 |
Properties | |||
Melting point | −13 °C (260 K) | −22 °C (251 K) | 63–67 °C (336–340 K) |
Boiling point | 203–205 °C (476–478 K) | 195–196 °C (468–469 K) | 196 °C (469 K) |
All three have been synthesized by various routes:
- 1-Bromo-2-chlorobenzene: from 2-chloroaniline, via diazotization followed by a Sandmeyer reaction[1]
- 1-Bromo-3-chlorobenzene: by (3-chlorophenyl)trimethylgermanium by electrophilic substitution[2][better source needed]
- 1-Bromo-4-chlorobenzene:
- From a derivative of (4-bromophenyl)silane using N-bromosuccinimide[3]
- From 4-chlorophenol using triphenylphosphine dibromide[4] or phenylphosphorus tetrachloride[5]
See also
[edit]References
[edit]- ^ Hartwell, Jonathan L. (1944). "o-Chlorobromobenzene". Organic Syntheses. 24: 22.
- ^ Moerlein, S. M. (1987). "Use of aryltrimethylgermanium substrates for facile aromatic chlorination, bromination, and iodination". The Journal of Organic Chemistry. 52 (4): 664–667. doi:10.1021/jo00380a031.
- ^ Hosomi, Akira; Iijima, Susumu; Sakurai, Hideki (1981). "Carbon–silicon bond cleavage of organotrialkoxysilanes and organosilatranes with m-chloroperbenzoic acid and N-bromosuccinimide. New route to phenols, primary alcohols and bromides". Chemistry Letters. 10 (2): 243–246. doi:10.1246/cl.1981.243.
- ^ Wiley, G. A.; Hershkowitz, R. L.; Rein, B. M.; Chung, B. C. (1964). "Studies in Organophosphorus Chemistry. I. Conversion of Alcohols and Phenols to Halides by Tertiary Phosphine Dihalides". Journal of the American Chemical Society. 86 (5): 964–965. doi:10.1021/ja01059a073.
- ^ Bay, Elliott; Bak, David A.; Timony, Peter E.; Leone-Bay, Andrea (1990). "Preparation of aryl chlorides from phenols". The Journal of Organic Chemistry. 55 (10): 3415–3417. doi:10.1021/jo00297a087.