145491
2,3-二甲基-1,3-丁二烯
98%, contains 100 ppm BHT as stabilizer
别名:
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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关于此项目
线性分子式:
CH2=C(CH3)C(CH3)=CH2
化学文摘社编号:
分子量:
82.14
UNSPSC Code:
12352100
NACRES:
NA.22
PubChem Substance ID:
EC Number:
208-172-0
Beilstein/REAXYS Number:
605285
MDL number:
Assay:
98%
Form:
liquid
vapor pressure
269 mmHg ( 37.7 °C)
Quality Level
assay
98%
form
liquid
contains
100 ppm BHT as stabilizer
refractive index
n20/D 1.438 (lit.)
bp
68-69 °C (lit.)
mp
−76 °C (lit.)
density
0.726 g/mL at 25 °C (lit.)
storage temp.
2-8°C
SMILES string
CC(=C)C(C)=C
InChI
1S/C6H10/c1-5(2)6(3)4/h1,3H2,2,4H3
InChI key
SDJHPPZKZZWAKF-UHFFFAOYSA-N
General description
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。
Application
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：
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。
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signalword
Danger
hcodes
Hazard Classifications
Flam. Liq. 2
存储类别
3 - Flammable liquids
wgk
WGK 3
flash_point_f
30.2 °F - closed cup
flash_point_c
-1 °C - closed cup
ppe
Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter
法规信息
危险化学品
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商品
The Diels–Alder reaction is the reaction between a conjugated diene and an alkene (dienophile) to form unsaturated six-membered rings. It is also referred to as a cycloaddition.
Aryl (hetaryl)-containing gem-cyanonitroethenes: Synthesis, structure, and reactions with 2,3-dimethyl-1,3-butadiene.
Baichurin RI, et al.
Russ. J. Gen. Chem., 85(8), 1845-1854 (2015)
Cycloaddition chemistry of 1, 3-dienes on the silicon (001) surface: Competition between [4+ 2] and [2+ 2] reactions.
Hovis JS, et al.
The Journal of Physical Chemistry B, 102(35), 6873-6879 (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.
全球贸易项目编号
| 货号 | GTIN |
|---|---|
| 145491-50G | 04061838736260 |
| 145491-10G | 04061838736253 |