dc.contributor.advisor | Reinecke, Manfred G. | |
dc.contributor.author | Newsom, James Graham | en_US |
dc.date.accessioned | 2019-10-11T15:10:01Z | |
dc.date.available | 2019-10-11T15:10:01Z | |
dc.date.created | 1977 | en_US |
dc.date.issued | 1977 | en_US |
dc.identifier | aleph-254955 | en_US |
dc.identifier.uri | https://repository.tcu.edu/handle/116099117/31763 | |
dc.description.abstract | 2,3-Thiophenedicarboxylic anhydride and 2,3-thianaphthene dicarboxylic anhydride were prepared by sequential metal-halogen exchange reactions using n-butyllithium and carbon dioxide on the corresponding dibromides. 3,4-Thiophenedicarboxylic anhydride was prepared by a previously reported method. Although the sealed tube pyrolysis of these anhydrides gave no indication of the corresponding hetarynes, the Flash Vacuum Thermolysis (FVT) of both 2,3-thiophenedicarboxylic anhydride and 2,3-thianaphthenedicarboxylic anhydride in the presence of diene traps gave products which are best rationalized by the intermediacy of a five-membered hetaryne. Products were isolated which correspond to 4+2 Diels-Alder addition reactions. In one case 2,3-thiophyne appears to undergo an ene-reaction with methylacetylene. The 3,4-anhydride failed to react under FVT conditions. | |
dc.format.extent | vi, 155 leaves, bound : illustrations | en_US |
dc.format.medium | Format: Print | en_US |
dc.language.iso | eng | en_US |
dc.relation.ispartof | Texas Christian University dissertation | en_US |
dc.relation.ispartof | AS38.N48 | en_US |
dc.subject.lcsh | Anhydrides | en_US |
dc.title | The synthesis and pyrolysis of the thiopene cyclic anhydrides | en_US |
dc.type | Text | en_US |
etd.degree.department | Department of Chemistry | |
etd.degree.level | Doctoral | |
local.college | College of Science and Engineering | |
local.department | Chemistry and Biochemistry | |
local.academicunit | Department of Chemistry | |
dc.type.genre | Dissertation | |
local.subjectarea | Chemistry and Biochemistry | |
dc.identifier.callnumber | Main Stacks: AS38 .N48 (Regular Loan) | |
dc.identifier.callnumber | Special Collections: AS38 .N48 (Non-Circulating) | |
etd.degree.name | Doctor of Philosophy | |
etd.degree.grantor | Texas Christian University | |