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145491

Sigma-Aldrich

2,3-二甲基-1,3-丁二烯

98%, contains 100 ppm BHT as stabilizer

同義詞:

2,3-二甲基丁烷, 2,3-二甲基丁烷-1,2-二烯, 二异丙烯基

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About This Item

線性公式:
CH2=C(CH3)C(CH3)=CH2
CAS號碼:
513-81-5
分子量：:
82.14
Beilstein:
605285
EC號碼:
208-172-0
MDL號碼:
MFCD00008595
分類程式碼代碼:
12352100
PubChem物質ID:
24848729
NACRES:
NA.22

蒸汽壓力

269 mmHg ( 37.7 °C)

化驗

98%

形狀

liquid

包含

100 ppm BHT as stabilizer

折射率

n20/D 1.438 (lit.)

bp

68-69 °C (lit.)

mp

−76 °C (lit.)

密度

0.726 g/mL at 25 °C (lit.)

儲存溫度

2-8°C

SMILES 字串

CC(=C)C(C)=C

InChI

1S/C6H10/c1-5(2)6(3)4/h1,3H2,2,4H3

InChI 密鑰

SDJHPPZKZZWAKF-UHFFFAOYSA-N

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相關類別

一般說明

2,3-二甲基-1,3-丁二烯 (DMBD) 是一种共轭二烯。它与 2-硫代-3-氯丙烯酰胺在热、催化和微波条件下发生 Diels Alder 环加成反应。在无溶剂条件下与 3-乙酰基、3-氨基甲酰基和 3-乙氧基羰基香豆素发生热 [4 + 2] 环加成反应。在二氯化铁基催化剂存在下，DMBD 参与聚合反应。

應用

用扫描隧道显微镜和傅里叶变换红外光谱研究了 1，3-二烯在 Si (001) 表面的反应。
它可用于以下过程：
  • 在钴催化剂存在下通过 1，4-氢化丁二烯基化制备相应的的 1-芳基取代 1，3-二烯的 1，3，6-三烯衍生物。
  • 与 gem-氰基硝基乙烯反应合成 6-芳基（杂环芳基）-3,4-二甲基-1-硝基-1-氰基-3-环己烯。
  • 在研究 2，5-二苯基特鲁洛芬的二溴加合物的光解反应过程中，作为卤素捕集器。

象形圖

Flame
GHS02

訊號詞

Danger

危險聲明

H225

危險分類

Flam. Liq. 2

儲存類別代碼

3 - Flammable liquids

水污染物質分類（WGK）

WGK 3

閃點（°F）

30.2 °F - closed cup

閃點（°C）

-1 °C - closed cup

個人防護裝備

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

分析證明 (COA)

輸入產品批次/批號來搜索 分析證明 (COA)。在產品’s標籤上找到批次和批號，寫有 ‘Lot’或‘Batch’.。

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Polymerization of 1, 3-dienes with iron complexes based catalysts: Influence of the ligand on catalyst activity and stereospecificity.
Ricci G, et al.
J. Mol. Catal. A: Chem., 204, 287-293 (2003)
Cobalt-Catalyzed 1, 4-Hydrobutadienylation of 1-Aryl-1,3-dienes with 2,3-Dimethyl-1,3-butadiene.
Bohn MA, et al.
Angewandte Chemie (International Edition in English), 50(41), 9689-9693 (2011)
Irma Y Flores-Larios et al.
Molecules (Basel, Switzerland), 15(3), 1513-1530 (2010-03-26)
The thermal [4+2] cycloadditions of 3-acetyl-, 3-carbamoyl, and 3-ethoxycarbonylcoumarins with 2,3-dimethyl-1,3-butadiene under solvent free conditions are reported, as well as the epoxidation reactions of some adducts. Discussion is focused on the structural features of the Diels-Alder adducts and their epoxides
Peroxy radical kinetics resulting from the OH-initiated oxidation of 1,3-butadiene, 2,3-dimethyl-1,3-butadiene and isoprene.
Jenkin ME, et al.
Journal of Atmospheric Chemistry, 29(3), 267-298 (1998)
Marie Kissane et al.
Organic & biomolecular chemistry, 8(24), 5602-5613 (2010-10-12)
The Diels-Alder cycloadditions of cyclopentadiene and 2,3-dimethyl-1,3-butadiene to a range of 2-thio-3-chloroacrylamides under thermal, catalytic and microwave conditions is described. The influence of reaction conditions on the outcome of the cycloadditions, in particular the stereoselectivity and reaction efficiency, is discussed.
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文章

Diels–Alder Reaction

The Diels–Alder reaction is the reaction between a conjugated diene and an alkene (dienophile) to form unsaturated six-membered rings. Since the reaction involves the formation of a cyclic product via a cyclic transition state, it is also referred to as a "cycloaddition".

Diels–Alder Reaction

The Diels–Alder reaction is the reaction between a conjugated diene and an alkene (dienophile) to form unsaturated six-membered rings. Since the reaction involves the formation of a cyclic product via a cyclic transition state, it is also referred to as a "cycloaddition".

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