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538523

Sigma-Aldrich

6-Bromo-1,4-benzodioxane

97%

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About This Item

Empirical Formula (Hill Notation):
C8H7BrO2
CAS Number:
52287-51-1
Molecular Weight:
215.04
EC Number:
257-817-2
MDL number:
MFCD00040750
UNSPSC Code:
12352100
PubChem Substance ID:
24878339
NACRES:
NA.22

Assay

97%

refractive index

n20/D 1.588 (lit.)

bp

259-260 °C (lit.)

density

1.598 g/mL at 25 °C (lit.)

SMILES string

Brc1ccc2OCCOc2c1

InChI

1S/C8H7BrO2/c9-6-1-2-7-8(5-6)11-4-3-10-7/h1-2,5H,3-4H2

InChI key

LFCURAJBHDNUNG-UHFFFAOYSA-N

Related Categories

General description

6-Bromo-1,4-benzodioxane is an aryl halide. It can be synthesized from 1,4-benzodioxane, via bromination with bromine in acetic acid. It undergoes alkoxycarbonylation reaction with sodium tert-butoxide in the presence of CO to yield 2,3-dihydro-benzo[1,4]dioxine-6-carboxylic acid t-butyl ester.

Application

6-Bromo-1,4-benzodioxane may be used as a starting reagent in the synthesis of chiral diphosphines (SYNPHOS and DIFLUORPHOS).

Storage Class Code

10 - Combustible liquids

WGK

WGK 3

Flash Point(F)

230.0 °F - closed cup

Flash Point(C)

110 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

FSL

Group 4: Flammable liquids
Type 3 petroleums
Hazardous rank III
Water insoluble liquid

JAN Code

538523-VAR:
538523-5G:
538523-BULK:
538523-1G:

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Chiral biphenyl diphosphines for asymmetric catalysis: Stereoelectronic design and industrial perspectives.
Jeulin, Severine, et al.
Proceedings of the National Academy of Sciences of the USA, 101(16), 5799-5804 (2004)
An Efficient Method for the Preparation of Tertiary Esters by Palladium-Catalyzed Alkoxycarbonylation of Aryl Bromides.
Xin, Zhuo, et al.
Organic Letters, 14(1), 284-287 (2011)

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