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5-Bromo-2,2-dimethyl-1,3-benzodioxole

CAS No.
73790-19-9
Chemical Name:
5-Bromo-2,2-dimethyl-1,3-benzodioxole
Synonyms
5-BroMo-2,2-diMethylbenzo[d][1,3]dioxole;5-Bromo-2,2-dimethyl-1,3-benzodioxole;1,3-Benzodioxole, 5-bromo-2,2-dimethyl-
CBNumber:
CB9315255
Molecular Formula:
C9H9BrO2
Molecular Weight:
229.07
MDL Number:
MFCD08061597
MOL File:
73790-19-9.mol
MSDS File:
SDS
Last updated:2026-09-12 18:56:22

5-Bromo-2,2-dimethyl-1,3-benzodioxole Properties

Boiling point 97-102 °C(Press: 8 Torr)
Density 1.475±0.06 g/cm3(Predicted)
storage temp. 2-8°C
Appearance Colorless to light yellow Liquid
InChI InChI=1S/C9H9BrO2/c1-9(2)11-7-4-3-6(10)5-8(7)12-9/h3-5H,1-2H3
InChIKey DBVCFVNYPVLZKX-UHFFFAOYSA-N
SMILES O1C2=CC=C(Br)C=C2OC1(C)C

SAFETY

Risk and Safety Statements

Symbol(GHS)  Exclamation Mark (GHS07)
GHS07
Signal word  Warning
Hazard statements  H315-H319-H335
Precautionary statements  P261-P305+P351+P338

5-Bromo-2,2-dimethyl-1,3-benzodioxole price More Price(47)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Usbiological 261941 5-Bromo-2,2-dimethyl-1,3-benzodioxole Asreported 73790-19-9 1g $907 2026-06-03 Buy
Usbiological 261941 5-Bromo-2,2-dimethyl-1,3-benzodioxole Asreported 73790-19-9 2g $1371 2026-06-03 Buy
Usbiological 261941 5-Bromo-2,2-dimethyl-1,3-benzodioxole Asreported 73790-19-9 5g $2414 2026-06-03 Buy
Usbiological 261941 5-Bromo-2,2-dimethyl-1,3-benzodioxole Asreported 73790-19-9 10g $3717 2026-06-03 Buy
Usbiological 261941 5-Bromo-2,2-dimethyl-1,3-benzodioxole Asreported 73790-19-9 25g $5224 2026-06-03 Buy
Product number Packaging Price Buy
261941 1g $907 Buy
261941 2g $1371 Buy
261941 5g $2414 Buy
261941 10g $3717 Buy
261941 25g $5224 Buy

5-Bromo-2,2-dimethyl-1,3-benzodioxole Chemical Properties, Uses, Production

Uses

5-Bromo-2,2-dimethylbenzo[d][1,3]dioxole is used as a reactant in the preparation of phenanthridine-based Bcl-XL inhibitors.

Synthesis

2,2-Dimethyl-1,3-benzodioxole

14005-14-2

5-BROMO-2,2-DIMETHYL-1,3-BENZODIOXOLE

73790-19-9

General procedure for the synthesis of 5-bromo-2,2-dimethylbenzo[d][1,3]dioxolane from 2,2-dimethylbenzo[d][1,3]dioxolane: 2,2-dimethyl-2H-1,3-benzo[d]dioxolane (1.00 g, 6.66 mmol) was dissolved in anhydrous N,N-dimethylformamide (20 mL). N-bromosuccinimide (1.19 g, 6.66 mmol) was added batchwise at room temperature. The reaction mixture was stirred at the same temperature overnight. Analysis by liquid chromatography-mass spectrometry (LCMS) showed almost complete consumption of the starting material. The reaction process was difficult to monitor by TLC as the starting material and the product had the same Rf value on thin layer chromatography (TLC). Upon completion of the reaction, the mixture was diluted with water, appropriate amount of saturated saline was added, followed by ethyl acetate for extraction. The organic and aqueous phases were separated and the organic phase was dried with anhydrous magnesium sulfate, filtered and concentrated to dryness. The crude product was purified by silica gel column chromatography with the eluent cyclohexane/ethyl acetate (95:5, v/v). The product-containing fraction was collected and concentrated to dryness to afford 5-bromo-2,2-dimethyl-2H-1,3-benzodioxole (1.32 g, 86% yield) as a colorless oil.1H NMR (300 MHz, DMSO-d6, δ/ppm): 1.63 (s, 6H), 6.79 (d, 1H, J = 8.1Hz), 6.95 (dd , 1H, J = 8.1Hz, J = 2.1Hz), 7.06 (d, 1H, J = 2.1Hz).

References

[1] Bioorganic and Medicinal Chemistry Letters, 2003, vol. 13, # 22, p. 4133 - 4137
[2] Patent: WO2018/138362, 2018, A1. Location in patent: Page/Page column 68; 130; 131
[3] Heterocycles, 2014, vol. 88, # 2, p. 1121 - 1133
[4] ChemMedChem, 2018, vol. 13, # 21, p. 2332 - 2348
[5] Molecules, 2015, vol. 20, # 5, p. 8654 - 8665

5-Bromo-2,2-dimethyl-1,3-benzodioxole Preparation Products And Raw materials

5-Bromo-2,2-dimethyl-1,3-benzodioxole Suppliers

Global Suppliers ( 70)
Supplier Tel Email Country ProdList Advantage
Fuzhou Fukang Pharmaceutical Technology Co., Ltd. 18150835816 120023275@qq.com China 907 58
Zhengzhou Lingzhiyue Technology Co., LTD +86-0371-55074660 Lingzhiyue@aliyun.com China 4734 58
Changzhou Carman Chemical Co., ltd 0519-0519-83534936 18151214939 1521178147@qq.com China 501 58
Changzhou Jiezhan Chemical Technology Co., Ltd 15861130028 956912955@qq.com China 300 58
Shanghai Hanhong Scientific Co.,Ltd. 021-54306202 13764082696 info@hanhongsci.com China 42917 64
Shanghai Topbiochem Technology Co., Ltd 021-58170097 info@topbiochem.com China 9509 58
Shanghai Raise Chemical Technology Co.,Ltd 15026594951 rs@raise-chem.com China 4905 55
Amatek Scientific Co. Ltd. 0512-56316828 4008675858 sales@amateksci.com China 9848 55
Bide Pharmatech Ltd. 400-164-7117 18317119277 product02@bidepharm.com China 40000 60
Shanghai YuanYe Biotechnology Co., Ltd. 15026964105 2881489226@qq.com China 89667 60

5-Bromo-2,2-dimethyl-1,3-benzodioxole Spectrum

1,3-Benzodioxole, 5-bromo-2,2-dimethyl- 5-BroMo-2,2-diMethylbenzo[d][1,3]dioxole 5-Bromo-2,2-dimethyl-1,3-benzodioxole 73790-19-9