2-ethynyl-5-methylthiophene

Modify Date: 2024-01-10 17:55:28

2-ethynyl-5-methylthiophene Structure
2-ethynyl-5-methylthiophene structure
Common Name 2-ethynyl-5-methylthiophene
CAS Number 81294-10-2 Molecular Weight 122.188
Density 1.1±0.1 g/cm3 Boiling Point 181.5±28.0 °C at 760 mmHg
Molecular Formula C7H6S Melting Point N/A
MSDS N/A Flash Point 43.3±10.2 °C

 Names

Name 2-ethynyl-5-methylthiophene
Synonym More Synonyms

 Chemical & Physical Properties

Density 1.1±0.1 g/cm3
Boiling Point 181.5±28.0 °C at 760 mmHg
Molecular Formula C7H6S
Molecular Weight 122.188
Flash Point 43.3±10.2 °C
Exact Mass 122.019020
PSA 28.24000
LogP 2.54
Vapour Pressure 1.2±0.3 mmHg at 25°C
Index of Refraction 1.558

 Synthetic Route

~90%

2-ethynyl-5-methylthiophene Structure

2-ethynyl-5-met...

CAS#:81294-10-2

Literature: Pilzak, Gregor S.; Van Gruijthuijsen, Kitty; Van Doom, Reindert H.; Van Lagen, Barend; Sudhoelter, Ernst J. R.; Zuilhof, Han Chemistry - A European Journal, 2009 , vol. 15, # 36 p. 9085 - 9096

~77%

2-ethynyl-5-methylthiophene Structure

2-ethynyl-5-met...

CAS#:81294-10-2

Literature: Negishi, Ei-Ichi; Xu, Caiding; Tan, Ze; Kotora, Martin Heterocycles, 1997 , vol. 46, # 1 p. 209 - 214

~75%

2-ethynyl-5-methylthiophene Structure

2-ethynyl-5-met...

CAS#:81294-10-2

Literature: Rossi, Renzo; Carpita, Adriano; Messeri, Tommaso Gazzetta Chimica Italiana, 1992 , vol. 122, # 1 p. 65 - 72

~%

2-ethynyl-5-methylthiophene Structure

2-ethynyl-5-met...

CAS#:81294-10-2

Literature: Beny, Jean-Pierre; Dhawan, Som N.; Kagan, Jacques; Sundlass, Satinder Journal of Organic Chemistry, 1982 , vol. 47, # 11 p. 2201 - 2204

~%

2-ethynyl-5-methylthiophene Structure

2-ethynyl-5-met...

CAS#:81294-10-2

Literature: Rossi, Renzo; Carpita, Adriano; Messeri, Tommaso Gazzetta Chimica Italiana, 1992 , vol. 122, # 1 p. 65 - 72

 Synonyms

5-methyl-thien-2-ylacetylene
5-methyl-2-thienylacetylene
Thiophene, 2-ethynyl-5-methyl-
Thiophene,2-ethynyl-5-methyl
2-Ethynyl-5-methylthiophene
2-ethynyl-5-methyl-thiophene