Bromine isole

Bromine isole
Surname	2-bromoanisole	3-bromoanisole	4-bromoanisole
other names	o -Bromanisole	m -bromanisole	p -bromanisole
Structural formula
CAS number	578-57-4	2398-37-0	104-92-7
PubChem	11358	16971	7730
Molecular formula	C 7 H 7 BrO
Molar mass	187.04 g mol −1
Physical state	liquid
Melting point	2-3 ° C	2 ° C	9-10 ° C
boiling point	223 ° C	210-211 ° C	223 ° C
Refractive index	1.5727 (20 ° C; 589 nm)	1.5635 (20 ° C; 589 nm)	1.5642 (20 ° C; 589 nm)
GHS labeling	no GHS pictograms	no GHS pictograms	no GHS pictograms
H and P phrases	no H-phrases	no H-phrases	no H-phrases
	no EUH phrases	no EUH phrases	no EUH phrases
	no P-phrases	no P-phrases	no P-phrases

In chemistry , the bromosoles form a group of substances that are derived from both anisole and bromobenzene . The structure consists of a benzene ring with attached methoxy group  (–OCH ₃ ) and bromine  (–Br) as substituents . Their different arrangements ( ortho , meta or para ) result in three constitutional isomers with the empirical formula C ₇ H ₇ BrO.

presentation

Bromanisols can be prepared from the bromophenols by etherification with dimethyl sulfate .

4-Bromanisole is obtained from anisole by bromination with elemental bromine.

The Sandmeyer reaction starting from 2-methoxyaniline yields 2-bromanisole.

Individual evidence

1. ↑ ^{a b c} data sheet 2-bromoanisole from Sigma-Aldrich , accessed on November 3, 2016 ( PDF ).
2. ↑ Alfa Aesar Catalog 2008/09, p. 285.
3. ↑ ^{a b c} Data sheet 4-Bromoanisole from Sigma-Aldrich , accessed on November 3, 2016 ( PDF ).
4. ↑ ^{a b} Data sheet 3-Bromoanisole from Sigma-Aldrich , accessed on November 3, 2016 ( PDF ).
5. ↑ ^{a b c} David R. Lide (Ed.): CRC Handbook of Chemistry and Physics . 90th edition. (Internet version: 2010), CRC Press / Taylor and Francis, Boca Raton, FL, Physical Constants of Organic Compounds, pp. 3-56.
6. ↑ Heinz GO Becker u. a .: Organikum . 19th edition. Barth, Leipzig 1993, ISBN 3-335-00343-8 , pp. 331-332.