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ChemicalBook >> CAS DataBase List >>4-Bromo-1,2-(methylenedioxy)benzene

4-Bromo-1,2-(methylenedioxy)benzene

CAS No.
2635-13-4
Chemical Name:
4-Bromo-1,2-(methylenedioxy)benzene
Synonyms
5-bromobenzo[d][1,3]dioxole;5-BROMO-1,3-BENZODIOXOLE;1,2-METHYLENEDIOXY-4-BROMOBENZENE;4-BROMO-1,2-METHYLENEDIOXYBENZENE;1-BROMO-3,4-(METHYLENEDIOXY)BENZENE;1-Bromo-3,4-(methylenedioxy)benzene 97%;enedioxy)benzene;BROMOBENZODIOXOLE;TIMTEC-BB SBB006662;4-Bromo-1,2-(methyL
CBNumber:
CB5398696
Molecular Formula:
C7H5BrO2
Molecular Weight:
201.02
MDL Number:
MFCD00005821
MOL File:
2635-13-4.mol
MSDS File:
SDS
Last updated:2026-05-28 03:29:40
Product description Number Pack Size Price
1-Bromo-3,4-(methylenedioxy)benzene 97% 288314 25g $122
1-Bromo-3,4-(methylenedioxy)benzene 97% 288314 100g $186
4-Bromo-1,2-methylenedioxybenzene >98.0%(GC) B1230 5g $34
4-Bromo-1,2-methylenedioxybenzene >98.0%(GC) B1230 25g $89
5-Bromo-1,3-benzodioxole, min. 98% min.98% 06-0037 25g $73
More product size

4-Bromo-1,2-(methylenedioxy)benzene Properties

Boiling point 85-86 °C1 mm Hg(lit.)
Density 1.669 g/mL at 25 °C(lit.)
refractive index n20/D 1.583(lit.)
Flash point >230 °F
storage temp. Inert atmosphere,Room Temperature
solubility Chloroform, Methanol (Sparingly)
form Liquid
Specific Gravity 1.669
color Clear yellow-orange
BRN 127407
Stability Light Sensitive
InChI InChI=1S/C7H5BrO2/c8-5-1-2-6-7(3-5)10-4-9-6/h1-3H,4H2
InChIKey FBOYMIDCHINJKC-UHFFFAOYSA-N
SMILES O1C2=CC=C(Br)C=C2OC1
CAS DataBase Reference 2635-13-4(CAS DataBase Reference)
NIST Chemistry Reference 4-Bromo-1,2-(methylenedioxy)benzene(2635-13-4)
UNSPSC Code 12352100
NACRES NA.22

SAFETY

Risk and Safety Statements

Symbol(GHS)  Exclamation Mark (GHS07)
GHS07
Signal word  Warning
Hazard statements  H315-H319-H335
Precautionary statements  P261-P264-P271-P280-P302+P352-P305+P351+P338
target organs Respiratory system
PPE Eyeshields, Gloves, type ABEK (EN14387) respirator filter
Hazard Codes  Xi
Risk Statements  36/37/38
Safety Statements  26-36-37/39
WGK Germany  3
Hazard Note  Irritant
HS Code  29329990
Storage Class 10 - Combustible liquids
Hazard Classifications Eye Irrit. 2
Skin Irrit. 2
STOT SE 3
NFPA 704
1
2 0

4-Bromo-1,2-(methylenedioxy)benzene price More Price(86)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 288314 1-Bromo-3,4-(methylenedioxy)benzene 97% 2635-13-4 25g $122 2026-04-30 Buy
Sigma-Aldrich 288314 1-Bromo-3,4-(methylenedioxy)benzene 97% 2635-13-4 100g $186 2026-04-30 Buy
TCI Chemical B1230 4-Bromo-1,2-methylenedioxybenzene >98.0%(GC) 2635-13-4 5g $34 2026-04-30 Buy
TCI Chemical B1230 4-Bromo-1,2-methylenedioxybenzene >98.0%(GC) 2635-13-4 25g $89 2026-04-30 Buy
Strem Chemicals 06-0037 5-Bromo-1,3-benzodioxole, min. 98% min.98% 2635-13-4 25g $73 2026-04-30 Buy
Product number Packaging Price Buy
288314 25g $122 Buy
288314 100g $186 Buy
B1230 5g $34 Buy
B1230 25g $89 Buy
06-0037 25g $73 Buy

4-Bromo-1,2-(methylenedioxy)benzene Chemical Properties,Uses,Production

Chemical Properties

clear yellow-orange liquid

Uses

The coupling of 1-bromo-3,4-(methylenedioxy)benzene with β-methallyl alcohol was catalyzed by Pd(OAc)2 in combination with P(t-Bu)3.

Synthesis Reference(s)

Tetrahedron, 64, p. 4999, 2008 DOI: 10.1016/j.tet.2008.03.085

General Description

The coupling of 1-bromo-3,4-(methylenedioxy)benzene with β-methallyl alcohol was catalyzed by Pd(OAc)2 in combination with P(t-Bu)3.

Synthesis

NBS (1.87 g, 10.50 mmol, 1.05 equiv.), HPLC-grade acetonitrile and benzo[d][1,3]dioxole (10 mmol) were placed into a flask and stirred until completely homogeneous. The solution was pumped through the Corning G1 photoreactor at the desired flow rate. The reaction mixture was collected from the reactor and combined with the two separate streams of toluene and water into a 10-mL Vapourtec static mixer coil; then, the mixture was pumped into a Zaiput liquid-liquid membrane separator, the organic phase was collected and passed twice more through the Zaiput membrane separator. The organic phase was evaporated under reduced pressure, providing the corresponding brominated product 4-Bromo-1,2-(methylenedioxy)benzene.
4-Bromo-1,2-(methylenedioxy)benzene

References

[1] Tetrahedron Letters, 2001, vol. 42, # 39, p. 6941 - 6942
[2] Angewandte Chemie - International Edition, 2018, vol. 57, # 39, p. 12869 - 12873
[3] Angew. Chem., 2018, vol. 130, p. 13051 - 13055,5
[4] Organic Letters, 2017, vol. 19, # 16, p. 4243 - 4246
[5] Canadian Journal of Chemistry, 2009, vol. 87, # 2, p. 440 - 447

128-08-5
274-09-9
2635-13-4
Synthesis of 4-Bromo-1,2-(methylenedioxy)benzene from N-Bromosuccinimide and 1,3-Benzodioxole
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View Lastest Price from 4-Bromo-1,2-(methylenedioxy)benzene manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
4-Bromo-1,2-(methylenedioxy)benzene pictures 2026-06-08 4-Bromo-1,2-(methylenedioxy)benzene
2635-13-4
 0.99 RongNa Biotechnology Co.,Ltd
4-Bromo-1,2-(methylenedioxy)benzene pictures 2026-03-20 4-Bromo-1,2-(methylenedioxy)benzene
2635-13-4
 $1.00 1KG 99% 10 mt Hebei Chuanghai Biotechnology Co., Ltd
5-Bromo-1,3-benzodioxole pictures 2022-12-01 5-Bromo-1,3-benzodioxole
2635-13-4
 $200.00 10g 99% 1000t/month Hebei Best Biological Technology Co., Ltd
4-BROMO-1,2-(METHYLENEDIOXY)ENZENE 4-Bromo-1,2-methylenedioxybenzene 99% 5-Bromo-1,3-benzodioxole 99% BROMOBENZODIOXOLE 4-Bromo-1,2-(methylenedioxy)benzene-5 5-Bromo-1,3-benzodioxolane 3,4-Methylenedioxy bromobenzene 1,3-Benzodioxol-5-bromo 4-BROMO-1,2-METHYLENEDIOXYBENZENE 97+% 3,4-Methylenedioxybrombenzene 4-Bromo-1,2-(methylenedioxy)benzene, 5-Bromo-1,3-benzodioxole 1,3-Benzodioxole-5-yl bromide 2-Methylenedioxybenzene 4-BroMo-1,2-(Methylenedioxy)benzene, 97% 25GR 5-Bromo-1,3-benzodioxole 3,4-Methylenedioxybromobenzene 4-BroMo-1,2-(Methylenedixoy) benzene 1-BroMo-3,4-(Methylenedioxy)benzene, 98%+ TIMTEC-BB SBB006662 4-Bromomethylenedioxybenzene 1,3-BENZODIOXOLE, 5-BROMO- 4-broMo -1,2-(Ya Jiaji twooxygenradicals)benzene 3,4-METHYLENEDIOXYBROMOBENZENE 3,4-METHYLENDIOXYBROMOBENZENE 5-BROMOBENZO-1,3-DIOXOLE 4-Bromo-1,2-(Methylenedioxy)Be 4-Bromo-1,2-(methylenedioxy)benzene (Bromobenzodioxole) 4-Bromo-1,2-methylenedioxybenzene > 4-Bromo-1,2-(methyL enedioxy)benzene 5-bromo-2H-1,3-benzodioxole 1,2-METHYLENEDIOXY-4-BROMOBENZENE 1-BROMO-3,4-(METHYLENEDIOXY)BENZENE Paroxetine Impurity 89 4-Bromo pepper ring 1-Bromo-3,4-(methylenedioxy)benzene 97% 4-BROMO-1,2-METHYLENEDIOXYBENZENE 5-BROMO-1,3-BENZODIOXOLE 5-bromobenzo[d][1,3]dioxole 2635-13-4 128577-477-9 Protected Alcohols/Phenols Oxygen Compounds Organic Building Blocks Building Blocks ARYL HALIDE Building Blocks Chemical Synthesis Organic Building Blocks Oxygen Compounds Protected Alcohols/Phenols Miscellaneous Bromine Compounds Miscellaneous Compounds Aromatic Hydrocarbons (substituted) & Derivatives 2635-13-4
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