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252271

Sigma-Aldrich

α-Bromoisobutyryl bromide

98%

Synonyme(s) :

2-Bromo-2-methylpropionyl bromide, BIBB

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About This Item

Formule linéaire :
(CH3)2CBrCOBr
Numéro CAS:
20769-85-1
Poids moléculaire :
229.90
Numéro Beilstein :
1746128
Numéro CE :
244-017-3
Numéro MDL:
MFCD00000122
Code UNSPSC :
12352100
ID de substance PubChem :
24855196
Nomenclature NACRES :
NA.22

Niveau de qualité

100

Pureté

98%

Forme

liquid

Indice de réfraction

n20/D 1.507 (lit.)

Point d'ébullition

162-164 °C (lit.)

Densité

1.86 g/mL at 25 °C (lit.)

Chaîne SMILES 

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

InChI

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

Clé InChI

YOCIJWAHRAJQFT-UHFFFAOYSA-N

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Description générale

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

Application

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

Pictogrammes

Corrosion
GHS05

Mention d'avertissement

Danger

Mentions de danger

H314

Classification des risques

Eye Dam. 1 - Skin Corr. 1B

Code de la classe de stockage

8A - Combustible corrosive hazardous materials

Classe de danger pour l'eau (WGK)

WGK 3

Point d'éclair (°F)

>230.0 °F

Point d'éclair (°C)

> 110 °C

Équipement de protection individuelle

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

Certificats d'analyse (COA)

Recherchez un Certificats d'analyse (COA) en saisissant le numéro de lot du produit. Les numéros de lot figurent sur l'étiquette du produit après les mots "Lot" ou "Batch".

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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
2-Bromo-2-methylpropionyl Bromide
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eEROS (Encyclopedia of Reagents for Organic Synthesis) (2001)
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International journal of biological macromolecules, 153, 364-372 (2020-02-29)
Poultry chicken feather keratin was extracted and then modified for the fabrication of keratin-graft-PNIPAM copolymers. The keratin was well extracted from feather fiber and powdered. Subsequently, it underwent the surficial functionalization process with initiator groups. After the study conducted full
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
Sarah Atzet et al.
Biomacromolecules, 9(12), 3370-3377 (2008-12-09)
Biodegradable poly(2-hydroxyethyl methacrylate)(pHEMA) hydrogels for engineered tissue constructs were developed by the use of atom transfer radical polymerization (ATRP), a degradable cross-linker, and a macroinitiator. Hydrogels are appropriate materials for tissue engineering scaffolds because of their tissue-like mechanical compliance and
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Protocoles

ARGET ATRP: Procedure for PMMA Polymer Brush Growth

ARGET ATRP procedure facilitates PMMA polymer brush growth with surface cleaning and initiator monolayer deposition.

ARGET ATRP: Procedure for PMMA Polymer Brush Growth

ARGET ATRP procedure facilitates PMMA polymer brush growth with surface cleaning and initiator monolayer deposition.

ARGET ATRP: Procedure for PMMA Polymer Brush Growth

ARGET ATRP procedure facilitates PMMA polymer brush growth with surface cleaning and initiator monolayer deposition.

ARGET ATRP: Procedure for PMMA Polymer Brush Growth

ARGET ATRP procedure facilitates PMMA polymer brush growth with surface cleaning and initiator monolayer deposition.

Afficher tout

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