|CAS No.||26693-24-3||Density||1.197 g/cm3|
|Formula||C7H8OS||Boiling Point||193 °C at 760 mmHg|
|Molecular Weight||140.20||Flash Point||70.5 °C|
|Molecular Structure||Hazard Symbols|
The Kahweofuran, its cas register number is 26693-24-3. It also can be called as Thieno[2,3-c]furan,2,3-dihydro-6-methyl- and the Systematic name about this chemical is 6-Methyl-2,3-dihydrothieno[2,3-c]furan. It belongs to the Flavor.
Physical properties about Kahweofuran are: (1)#H bond acceptors: 1; (2)#H bond donors: 0; (3)#Freely Rotating Bonds: 0; (4)Polar Surface Area: 38.44Å2; (5)Index of Refraction: 1.582; (6)Molar Refractivity: 39.1 cm3; (7)Molar Volume: 117 cm3; (8)Polarizability: 15.5x10-24cm3; (9)Surface Tension: 43.4 dyne/cm; (10)Enthalpy of Vaporization: 41.16 kJ/mol; (11)Vapour Pressure: 0.663 mmHg at 25°C
Preparation of Kahweofuran: (1) this chemical can be prepared by 2-acetyl-tetrahydrothiophene-3-carbaldehyde.
This reaction needs reagent 0.1 N H2SO4. The reaction also needs heating. The yield is 69 %.
(2) A other kind to produce Kahweofuran: it can be prepared by 1-(3-dimethoxymethyltetrahydrothiophene-2-yl)ethanone.
This reaction needs reagent 0.1 N H2SO4. The reaction also needs heating. The yield is 65 % .
You can still convert the following datas into molecular structure:
(4)Std. InChI: InChI=1S/C7H8OS/c1-5-7-6(4-8-5)2-3-9-7/h4H,2-3H2,1H3
(5)Std. InChIKey: WQOKVCDOEDFSAJ-UHFFFAOYSA-N
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