description：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.application：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. Specification: ≥96.0% (GC) MDL Number: MFCD00014529 Molecular Formula: C7H8OS Molecular Weight: 140.2 EC Number: 237-181-2 PubChem CID: 83655 Isomeric SMILES: CC1=CC=C(S1)C(=O)C Beilstein Registry Number: 17(3/4)4550 Related Documents: https://ald-pub-files.oss-cn-shanghai.aliyuncs.com/aladdinsci/pdp/sds/1/A113376-SCI_e0929ee3f63dfdb63bd201606eacf510.pdf
- UPC:
- 41105500
- Condition:
- New
- Availability:
- 1 day
- Weight:
- 1.09 Ounces
- HazmatClass:
- No
- WeightUOM:
- LB
- MPN:
- A113376-1g
- CAS:
- 13679-74-8
- Product Size:
- 1g
