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  • isomer
  • The major pathway forms the S-oxide as an intermediate, which undergoes subsequent Diels-Alder-type dimerisation and further oxidation, forming a mixture of sulfoxide and sulfone products with a combined yield of 83% (based on NMR evidence): In the minor reaction pathway, a Prilezhaev epoxidation results in the formation of thiophene-2,3-epoxide that rapidly rearranges to the isomer thiophene-2-one. (wikipedia.org)
  • reactive
  • The reactive thiophene-1,1-dioxide, which is stable in solution only, is also accessible via the formation of 3,4-bis(dimethylamino)tetrahydrothiophene-1,1-dioxide and successive double quaternization with methyl iodide and Hofmann elimination with silver hydroxide. (wikipedia.org)
  • organic
  • 3. The field effect transistor device of claim 1 wherein said n-type organic semiconducting material contains about four to about seven conjugated thiophene moieties. (google.co.uk)
  • 6. The field effect transistor device of claim 1 wherein said n-type organic semiconducting material is a polythiophene polymer with more than seven conjugated thiophene moieties. (google.co.uk)
  • 18. The field-effect transistor of claim 17 wherein said gate electrode is in electrical contact with a p-type thiophene-based organic semiconductor. (google.co.uk)
  • Chemical
  • Chemical and spectroscopic techniques for analysis of thiophenes are discussed and some applications of the techniques are indicated. (cdc.gov)
  • In enzymology, a thiophene-2-carbonyl-CoA monooxygenase (EC 1.14.99.35) is an enzyme that catalyzes the chemical reaction thiophene-2-carbonyl-CoA + AH2 + O2 ⇌ {\displaystyle \rightleftharpoons } 5-hydroxythiophene-2-carbonyl-CoA + A + H2O The three substrates of this enzyme are thiophene-2-carbonyl-CoA, an electron acceptor AH2, and O2. (wikipedia.org)
  • electron
  • Introduction of perfluorocarbon chains on the thiophene core affords enhanced thermal stability and volatility, and increased electron affinity versus the fluorine-free analog 2. (google.co.uk)
  • polymer
  • 7. The field effect transistor of claim 6 , where said polythiophene polymer contains fluoroalkyl substituents attached to the 3-position of the thiophene rings in a regioregular, head-to-tail configuration. (google.co.uk)
  • 8. The field effect transistor of claim 7 , where said polythiophene polymer is regioregular, head-to-tail poly-3-C n F 2n+1 -thiophene. (google.co.uk)
  • order
  • The occurrence, toxicity, and uses of thiophenes are discussed in order to provide the setting within which analyses must be performed. (cdc.gov)