| Autor: |
Gol'dfarb, Ya. L., Gorushkina, G. I., Fedorov, B. P. |
| Zdroj: |
Russian Chemical Bulletin; November 1959, Vol. 8 Issue: 11 p1925-1929, 5p |
| Abstrakt: |
1.Ethyl 2-thenyl sulfide is metalated by butyllithium in the 5-position. The structure of 5-(ethylthiomethyl)-2-thiophenecarboxylic acid was established by its conversion into dimethyl 2,5-thiophenedicarboxylate.2.In the acetylation of ethyl 2-thenyl sulfone with acetyl chloride in presence of stannic chloride, the acetyl group enters the 5-position. The product was shown to be 5-(ethylsulfonylmethyl) thienyl methyl ketone by its conversion into 5-ethyl-2-thiophenecarboxylic acid.3.The bromine of 5-bromo-2-thenyl ethyl sulfone is not replaced by lithium by reaction with butyllithium and is not replaced by a nitrile group when the substance is heated with cuprous cyanide. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
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