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252271

Sigma-Aldrich

α-溴异丁酰溴

98%

别名:

2-溴-2-甲基丙酰溴, BIBB

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About This Item

线性分子式:
(CH3)2CBrCOBr
CAS号:
20769-85-1
分子量:
229.90
Beilstein:
1746128
EC 号:
244-017-3
MDL编号:
MFCD00000122
UNSPSC代码:
12352100
PubChem化学物质编号:
24855196
NACRES:
NA.22
价格与库存信息目前不能提供

质量水平

100

方案

98%

表单

liquid

折射率

n20/D 1.507 (lit.)

沸点

162-164 °C (lit.)

密度

1.86 g/mL at 25 °C (lit.)

官能团

acyl bromide
bromo

SMILES字符串

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

InChI

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

InChI key

YOCIJWAHRAJQFT-UHFFFAOYSA-N

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相关类别

一般描述

BIBB是合成酰胺、大环酰胺、烯酮和炔酮的重要试剂。[1]

应用

α-溴异丁酰溴已用于：
  • 作为原子转移自由基聚合（ATRP）引发剂，用于氧化石墨烯表面上羟基的官能化[2]
  • 形成一个 N保护的卤代二烯酰胺，在铜（I）和叔胺存在下提供四元和五元内酰胺[3]
  • 通过与低聚己内酯二醇反应制备聚己内酯大分子引发剂[4] 通过与固定在外表面的ATRP引发剂反应制备介孔二氧化硅纳米粒子[5]

象形图

Corrosion
GHS05

警示用语：

Danger

危险声明

H314

危险分类

Eye Dam. 1 - Skin Corr. 1B

储存分类代码

8A - Combustible corrosive hazardous materials

WGK

WGK 3

闪点(°F)

>230.0 °F

闪点(°C)

> 110 °C

个人防护装备

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

历史批次信息供参考:

分析证书(COA)

Lot/Batch Number
MKCW9569
0000308606
SHBL0471
SHBG9238V
STBD8431V

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Sikai Chen et al.
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
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
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
Preparation and characterization of hyperbranched polymer grafted mesoporous silica nanoparticles via self-condensing atom transfer radical vinyl polymerization.
Li X, et al.
Polymer, 51(1), 92-99 (2010)
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
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实验方案

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.

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Questions

1–3 of 3 Questions  

  1. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer

    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

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  2. How can I determine the shelf life / expiration / retest date of this product?

    1 answer

    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf

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  3. Does this come packaged in a SureSeal bottle

    1 answer

    1. This product is not packaged in SureSeal containers. The 100G package size is in 50mL amber glass bottles with PTFE-lined polypropylene caps. The 500G package size is the same with the exception of a 500ml bottle volume. Both package sizes are shipping in an overpack protective can.

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