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2-Bromoisobutyryl bromide

2-Bromoisobutyryl bromide structure

CAS No:
20769-85-1
Formula:
C4H6Br2O
Chemical Name:
2-Bromoisobutyryl bromide
Synonyms:
Propanoyl bromide,2-bromo-2-methyl-;Propionyl bromide,2-bromo-2-methyl-;2-Bromo-2-methylpropanoyl bromide;α-Bromoisobutyryl bromide;2-Bromo-2-methylpropionyl bromide;Bromodimethylacetyl bromide;2-Bromoisobutyryl bromide;2-Bromoisobutanoyl bromide;2-Bromoisobutyric bromide;Bromoisobutyryl bromide;2-Methyl-2-bromopropionyl bromide;1,2-Dibromo-2-methylpropanal;Bibb
Categories:
Chemical Reagents > Organic Reagents

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Description

colourless liquid

2-Bromoisobutyryl bromide Basic Attributes

Molecular Weight：

229.9

Exact Mass：

229.90

BRN：

1746128

EC Number：

244-017-3

UNII：

627F9N9DYA

DSSTox ID：

DTXSID7045077

HScode：

29159080

Characteristics

PSA：

17.1

XLogP3：

2.08140

Appearance：

Clear light yellow to yellow Liquid

Density：

1.86 g/mL at 20 °C

Boiling Point：

163 °C

Flash Point：

>110°C

Refractive Index：

n20/D 1.507(lit.)

Water Solubility：

Solubility in water: reaction.Miscible with acetone and carbon disulfide.

Storage Conditions：

Store below +30°C.

Vapor Pressure：

2.11mmHg at 25°C

Safety Information

Packing level：

Hazard category：

Transport codes：

UN 3265 8/PG 2

wgk germany：

hazard class code：

22-34

safety instructions：

26-36/37/39-45

Marks：

Stability/Shelf Life：

Stable, but may react with moisture. Incompatible with water, strong oxidizing agents, strong bases.

Precautionary statement(s)：

P280-P305 + P351 + P338-P310

Hazard Statements：

H302-H314

GHS Classification：

|Danger|H302 (86.27%): Harmful if swallowed [Warning Acute toxicity, oral]|P260, P261, P264, P270, P272, P280, P301+P312, P301+P330+P331, P302+P352, P303+P361+P353, P304+P340, P305+P351+P338, P310, P321, P330, P333+P313, P363, P405, and P501|Aggregated GHS information provided by 51 companies from 8 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.

2-Bromoisobutyryl bromide Use and Manufacturing

Methods of Manufacturing

Bromine was added dropwise to the mixture of isobutyric acid and red phosphorus, and reacted at 100°C for 6 hours. Unreacted bromine and hydrogen bromide were distilled off under reduced pressure. After cooling, phosphorous acid was removed to obtain crude 2-bromoisobutyryl bromide. The crude product is fractionated under reduced pressure and the 91-98°C (13.3kPa) fraction is collected as the finished product.

Uses

α-Bromoisobutyryl bromide has been used: as atom transfer radical polymerization (ATRP) initiator for functionalization of hydroxyl groups present on the surface of graphene oxideto form an N-protected halodienamide which provided four- and five-membered lactams in the presence of copper (I) and a tertiary aminein preparation of polycaprolactone macroinitiator via reaction with oligomeric caprolactone diol and mesoporous silica nanoparticles with ATRP initiator anchored on the exterior surface

Manufacturing Info：

Propanoyl bromide, 2-bromo-2-methyl-: ACTIVE

Computed Properties

Molecular Weight:229.90
XLogP3:2.2
Hydrogen Bond Acceptor Count:1
Rotatable Bond Count:1
Exact Mass:229.87649
Monoisotopic Mass:227.87854
Topological Polar Surface Area:17.1
Heavy Atom Count:7
Complexity:87.7
Covalently-Bonded Unit Count:1
Compound Is Canonicalized:Yes

Material

Isobutyric acid

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2-Bromo-2-methylpropionyl bromide

CAS No.: 20769-85-1

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CAS No.: 20769-85-1

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CAS No.: 20769-85-1

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Guide of 2-Bromoisobutyryl bromide

Description
Basic Attributes
Characteristics
Safety Information
Use and Manufacturing
Computed Properties
Material
Recommended Suppliers
Latest News
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2-Bromoisobutyryl bromide

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