Synthesis of new building blocks for conjugated oligomers
2004 (English)Doctoral thesis, comprehensive summary (Other scientific)
This thesis deals with the synthesis of new organicmaterials for electronic applications. Several new ring-formingmethods are employed to construct sulphur heterocycles: Tandemelectrophilic aromatic substitution and acid-catalyzedtransetherification of methoxythiophene, double electrophilicaromatic substitutions with ethane-1, 2-disulphenyl chloride,and also, the reaction of dienes with sulphur dichloride. Twonew condensed thiophenes have been incorporated in end-cappedoligothiophenes. An improvement of the synthesis of [3,2-b:2, 3-d]thiophene is reported, with some attempts toincorporate it in oligomers. A synthesis of substitutednaphthalenes is also described. A new method of producingdisubstituted thiophenes from substituted butadienes anssulphur dichloride is employed in a new route to 3, 4-ethylenedioxythiophene, a very important monomer for conductingpolymers.
Keywords :Organic Semiconductors, Thiophenes,Heterocyclic Synthesis, Dithienothiophene, Naphthalene,Ethylenedioxythiophene
Place, publisher, year, edition, pages
Stockholm: Kemi , 2004. , 68 p.
Trita-IOK, ISSN 1100-7974 ; 04:89
organic semiconductors, thiophenes, heterocyclic synthesis, dithienothiophene, naphthalene
IdentifiersURN: urn:nbn:se:kth:diva-3782ISBN: 91-7283-764-0OAI: oai:DiVA.org:kth-3782DiVA: diva2:9634