533610
2-乙酰基-5-甲基噻吩
98%
别名:
1-(5-Methyl-2-thienyl)ethanone, 1-(5-Methylthiophen-2-yl)ethan-1-one, 1-(5-Methylthiophen-2-yl)ethanone, 2-Methyl-5-acetylthiophene, 5-Methyl-2-thienyl methyl ketone, Methyl 5-methyl-2-thienyl ketone
登录查看公司和协议定价
选择尺寸
关于此项目
经验公式（希尔记法）:
C7H8OS
化学文摘社编号:
分子量:
140.20
EC 号:
MDL编号:
UNSPSC代码:
12352100
PubChem化学物质编号:
NACRES:
NA.22
质量水平
方案
98%
折射率
n20/D 1.561 (lit.)
沸点
65-67 °C/1 mmHg (lit.)
mp
24-28 °C (lit.)
密度
1.106 g/mL at 25 °C (lit.)
官能团
ketone
SMILES字符串
CC(=O)c1ccc(C)s1
InChI
1S/C7H8OS/c1-5-3-4-7(9-5)6(2)8/h3-4H,1-2H3
InChI key
YOSDTJYMDAEEAZ-UHFFFAOYSA-N
一般描述
2-Acetyl-5-methylthiophene is a volatile organic compound formed during the reaction between L-cysteine and dihydroxyacetone in glycerine or triglyceride solvent system. It can be prepared by reacting 2-methylthiophene with acetic anhydride. 2-Acetyl-5-methylthiophene undergoes palladium-catalyzed cross-coupling reaction with aryl bromides to form C-4 arylated product. It reacts with 1,2-bis(5-formyl-2-methylthiophen-3-yl)cyclopentene via Aldol condensation to form a chalcone with photochromic property. The standard molar enthalpies of combustion, formation and vaporization of 2-acetyl-5-methylthiophene are 4341.9 ± 1.8kJ/mol, 158.0 ± 2.1kJ/mol and 62.0 ± 2.6kJ/mol, respectively.
应用
2-Acetyl-5-methylthiophene may be used in the preparation of:
- 2-ethyl-5-methylthiophene
- (5-methylthiophen-2-yl)glyoxal
- (2E)-1-(5-methylthiophen-2-yl)-3-(pyridin-3-yl)prop-2-en-1-one
- ethyl 3-(5-methylthiophen-2-yl)-3-oxopropanoate
储存分类代码
11 - Combustible Solids
WGK
WGK 3
闪点(°F)
Not applicable
闪点(°C)
Not applicable
个人防护装备
Eyeshields, Gloves, type N95 (US)
法规信息
新产品
此项目有
Palladium-catalysed direct 3-or 4-arylation of thiophene derivatives using aryl bromides.
Dong JJ, et al.
Tetrahedron, 50(23), 2778-2781 (2009)
Zinc azaphthalocyanines with thiophen-2-yl, 5-methylthiophen-2-yl and pyridin-3-yl peripheral substituents: Additive substituent contributions to singlet oxygen production.
M?rkved EH, et al.
Dyes and Pigments, 82(3), 276-285 (2009)
Novel Dithienylethenes with Extended ??Systems: Synthesis by Aldol Condensation and Photochromic Properties.
Altenhoner K, et al.
European Journal of Organic Chemistry, 2010(31), 6033-6037 (2010)
Acylation studies in the thiophene and furan series. IV. Strong inorganic oxyacids as catalysts.
Hartough HD and Kosak AI.
Journal of the American Chemical Society, 69(12), 3093-3096 (1947)
Straightforward access to diketopyrrolopyrrole (DPP) dimers.
Stas S, et al.
Dyes and Pigments, 97(1), 198-208 (2013)
我们的科学家团队拥有各种研究领域经验，包括生命科学、材料科学、化学合成、色谱、分析及许多其他领域.
联系客户支持