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ChemicalBook >> CAS DataBase List >>3,4-DIMETHOXYBENZYL BROMIDE

3,4-DIMETHOXYBENZYL BROMIDE

CAS No.
21852-32-4
Chemical Name:
3,4-DIMETHOXYBENZYL BROMIDE
Synonyms
4-(BroMoMethyl)-1,2-diMethoxybenzene;Veratryl bromide;3,4-DIMETHOXYBENZYL BROMIDE;Toluene, α-bromo-3,4-dimethoxy-;Benzene, 4-(broMoMethyl)-1,2-diMethoxy-;3,4-DiMethoxybenzyl BroMide Discontinued due to stability
CBNumber:
CB31010256
Molecular Formula:
C9H11BrO2
Molecular Weight:
231.09
MDL Number:
MFCD09833606
MOL File:
21852-32-4.mol
Last updated:2025-01-09 11:22:01

3,4-DIMETHOXYBENZYL BROMIDE Properties

Melting point 56-58℃
Boiling point 273℃
Density 1.384
Flash point 116℃
storage temp. Inert atmosphere,Store in freezer, under -20°C
solubility CDCl3;
form Solid
color Off-white

SAFETY

Risk and Safety Statements

Symbol(GHS)  GHS hazard pictograms
GHS06
Signal word  Danger
Hazard statements  H335-H301
Precautionary statements  P264-P270-P301+P310-P321-P330-P405-P501

3,4-DIMETHOXYBENZYL BROMIDE price More Price(10)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Biosynth Carbosynth FD22198 3,4-Dimethoxybenzyl bromide 21852-32-4 250mg $50 2021-12-16 Buy
Biosynth Carbosynth FD22198 3,4-Dimethoxybenzyl bromide 21852-32-4 500mg $80 2021-12-16 Buy
Biosynth Carbosynth FD22198 3,4-Dimethoxybenzyl bromide 21852-32-4 1g $125 2021-12-16 Buy
Biosynth Carbosynth FD22198 3,4-Dimethoxybenzyl bromide 21852-32-4 2g $200 2021-12-16 Buy
Biosynth Carbosynth FD22198 3,4-Dimethoxybenzyl bromide 21852-32-4 5G $300 2021-12-16 Buy
Product number Packaging Price Buy
FD22198 250mg $50 Buy
FD22198 500mg $80 Buy
FD22198 1g $125 Buy
FD22198 2g $200 Buy
FD22198 5G $300 Buy

3,4-DIMETHOXYBENZYL BROMIDE Chemical Properties,Uses,Production

Uses

Reagent used in the dimethoxybenzyl alkylations.

Uses

3,4-DIMETHOXYBENZYL BROMIDE used in the dimethoxybenzyl alkylations.

Preparation

3,4-Dimethoxybenzyl Bromide is synthesized from commercially available 3,4-dimethoxybenzyl alcohol and PBr3 or HBr.[2-3]

General Description

3,4-Dimethoxybenzyl Bromide (DMBBr) is used as a reagent for introduction of 3,4-dimethoxybenzyl protecting group, which can be cleaved selectively under conditions of benzylic oxidation.[1]

storage

3,4-Dimethoxybenzyl Bromide reactions are usually carried out in polar solvents such as THF or DMF. The reagent is quite unstable and is best prepared fresh or stored at low temperature under nitrogen. It is a lachrymator.

References

1. (a) Horita, K.; Yoshioka, T.; Tanaka, T.; Oikawa, Y.; Yonemitsu, O. T 1986, 42, 3021. (b) Oikawa, Y.; Tanaka, T.; Horita, K.; Yoshioka, T.; Yonemitsu, O. TL 1984, 25, 5393.
2. Lakhlifi, T.; Sedqui, A.; Laude, B.; Dinh An, N.; Vebrel, J. CJC 1991, 69, 1156.
3. Coote, S. J.; Davies, S. G.; Middlemiss, D.; Naylor, A. JCS(P1) 1989, 2223.

Global( 116)Suppliers
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View Lastest Price from 3,4-DIMETHOXYBENZYL BROMIDE manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
3,4-DIMETHOXYBENZYL BROMIDE pictures 2020-02-05 3,4-DIMETHOXYBENZYL BROMIDE
21852-32-4
 US $3.00 / KG 1KG 98% 100KG Career Henan Chemical Co
3,4-DiMethoxybenzyl BroMide Discontinued due to stability Veratryl bromide Benzene, 4-(broMoMethyl)-1,2-diMethoxy- 3,4-DIMETHOXYBENZYL BROMIDE Toluene, α-bromo-3,4-dimethoxy- 4-(BroMoMethyl)-1,2-diMethoxybenzene 21852-32-4 Aromatics Miscellaneous Reagents