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126152

Sigma-Aldrich

1,2-二氟苯

98%

别名:

o-Difluorobenzene

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10 G
$90.10
50 G
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About This Item

经验公式（希尔记法）:
C6H4F2
CAS号:
367-11-3
分子量:
114.09
Beilstein:
1905113
EC 号:
206-680-7
MDL编号:
MFCD00000284
UNSPSC代码:
12352100
PubChem化学物质编号:
24847704
NACRES:
NA.22

$90.10

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质量水平

200

方案

98%

表单

liquid

折射率

n20/D 1.443 (lit.)

沸点

92 °C (lit.)

mp

−34 °C (lit.)

密度

1.158 g/mL at 25 °C (lit.)

官能团

fluoro

SMILES字符串

Fc1ccccc1F

InChI

1S/C6H4F2/c7-5-3-1-2-4-6(5)8/h1-4H

InChI key

GOYDNIKZWGIXJT-UHFFFAOYSA-N

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相关类别

一般描述

1,2-二氟苯在 NaOAc 存在下与铑吡啶膦和联吡啶配合物（固定在二氧化硅负载的钯催化剂上）在非常温和的条件下通过 H 2 发生脱氟反应 [1]。

应用

1,2-二氟苯 (1,2-DFB) 被用于研究邻-、间-和对-二氟苯离子的离解机制[2]。它和 x 射线光电子能谱和程序升温脱附一起用来研究 1,2-DFB、1,2-二氯苯和 1,2-二溴苯在 Si (100) 2 x 1 上的室温吸附。[3]。它还被用作转换金属配合物电化学研究的溶剂 [4]。
用于过渡金属络合物的电化学研究的溶剂。[4]

象形图

Flame
GHS02

警示用语：

Danger

危险声明

H225

预防措施声明

P210

危险分类

Flam. Liq. 2

储存分类代码

3 - Flammable liquids

WGK

WGK 3

闪点(°F)

33.8 °F - closed cup

闪点(°C)

1 °C - closed cup

个人防护装备

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

历史批次信息供参考:

分析证书(COA)

Lot/Batch Number
SDBB0154
STBL2588
STBL1054
BCCG4517
BCCD0302

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4-溴-1,2-二氟苯 98%

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4-溴-1,2-二氟苯

Inorganic Chemistry, 28, 3923-3923 (1989)
Anne-Marie Boulanger et al.
Journal of the American Society for Mass Spectrometry, 20(1), 20-24 (2008-10-18)
Threshold photoelectron photoion coincidence (TPEPICO) experiments have shown that o-, m-, and p-difluorobenzene ions dissociate via a common, ring-opened intermediate and not via ionized p-difluorobenzene. Rice-Ramsperger-Kassel-Marcus (RRKM) modeling of the experimental breakdown curves yields activation energies for the initial isomerization
Hydrodefluorination of fluorobenzene and 1, 2-difluorobenzene under mild conditions over rhodium pyridylphosphine and bipyridyl complexes tethered on a silica-supported palladium catalyst.
Yang H, et al.
Organometallics, 18(12), 2285-2287 (1999)
Competition between associative and dissociative adsorption of 1, 2-dihalogenated benzenes on Si (100) 2? 1: Formation of dihalocyclohexadiene, halophenyl and phenylene adstructures.
Zhou XJ and Leung KT.
Surface Science, 600(16), 3285-3296 (2006)
I M Rietjens et al.
Biochemistry, 32(18), 4801-4812 (1993-05-11)
In the present study, a hypothesis is presented for the prediction of the regioselectivity of cytochrome P-450 catalyzed hydroxylation of fluorobenzenes. The regioselectivity of the in vivo hydroxylation of fluorobenzene, 1,2-difluorobenzene, 1,3-difluorobenzene, 1,2,3-triluorobenzene, and 1,2,4-triflurobenzene could be predicted within 6%
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  1. 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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  2. 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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