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Sigma-Aldrich

α-Bromoisobutyryl bromide

98%

Sinônimo(s):

2-Bromo-2-methylpropionyl bromide, BIBB

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About This Item

Fórmula linear:
(CH3)2CBrCOBr
Número CAS:
20769-85-1
Peso molecular:
229.90
Beilstein:
1746128
Número CE:
244-017-3
Número MDL:
MFCD00000122
Código UNSPSC:
12352100
ID de substância PubChem:
24855196
NACRES:
NA.22

Nível de qualidade

100

Ensaio

98%

forma

liquid

índice de refração

n20/D 1.507 (lit.)

pb

162-164 °C (lit.)

densidade

1.86 g/mL at 25 °C (lit.)

cadeia de caracteres SMILES

CC(C)(Br)C(Br)=O

InChI

1S/C4H6Br2O/c1-4(2,6)3(5)7/h1-2H3

chave InChI

YOCIJWAHRAJQFT-UHFFFAOYSA-N

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Descrição geral

BIBB is an important reagent in the synthesis of amides, macrocyclic amides, ketenes, and alkynic ketones.

Aplicação

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

Pictogramas

Corrosion
GHS05

Palavra indicadora

Danger

Frases de perigo

H314

Classificações de perigo

Eye Dam. 1 - Skin Corr. 1B

Código de classe de armazenamento

8A - Combustible, corrosive hazardous materials

Classe de risco de água (WGK)

WGK 3

Ponto de fulgor (°F)

230.0 °F

Ponto de fulgor (°C)

> 110 °C

Equipamento de proteção individual

Faceshields, Gloves, Goggles, type ABEK (EN14387) respirator filter

Certificados de análise (COA)

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International journal of nanomedicine, 8, 2011-2027 (2013-06-08)
Cationic polymers are one of the major nonviral gene delivery vectors investigated in the past decade. In this study, we synthesized several cationic copolymers using atom transfer radical polymerization (ATRP) for gene delivery vectors: pluronic F127-poly(dimethylaminoethyl methacrylate) (PF127-pDMAEMA), pluronic F127-poly
Ya'nan Deng et al.
Mikrochimica acta, 185(8), 370-370 (2018-07-11)
Poly(2-naphthyl acrylate) was first grafted onto silica-coated magnetic nanoparticles by surface-initiated atom transfer radical polymerization to prepare a reversed-phase magnetic adsorbent. The resulting polymer brush displays enhanced extraction efficiency by offering active sites on the surfaces of adsorbent. It was
Nicklas N Poulsen et al.
Journal of separation science, 40(3), 779-788 (2016-11-22)
Many bioanalytical methods rely on electrophoretic separation of structurally labile and surface active biomolecules such as proteins and peptides. Often poor separation efficiency is due to surface adsorption processes leading to protein denaturation and surface fouling in the separation channel.
Sun Hwa Lee et al.
Macromolecular rapid communications, 31(3), 281-288 (2010-02-02)
A method for growing polymers directly from the surface of graphene oxide is demonstrated. The technique involves the covalent attachment of an initiator followed by the polymerization of styrene, methyl methacrylate, or butyl acrylate using atom transfer radical polymerization (ATRP).
Andrew J Clark et al.
The Journal of organic chemistry, 72(15), 5923-5926 (2007-07-03)
Reaction of 2-substituted dienamides with catalytic amounts of copper halide/tripyridylamine (TPA) furnishes either 5-exo or 6-endo products with the outcome dependent upon the radical initiating unit. Reaction of 3-substituted dienamides produces beta-lactams via a 4-exo cyclization with termination of the
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