Islam, Ahmad M
(1954)
(1) New Methods of Approach to the Bicyclo[5:3:0]decane System. (2) Attempted Synthesis of the Indacenes.
PhD thesis, University of Glasgow.
Full text available as:
Abstract
PART I. NEW METHODS OP APPROACH TO THE BICYCLO[5:3:0]DECANE SYSTEM. A. Condensation of propargyl bromide with 2-ethoxy-carbonylcycloalkanones furnishes products which, by hydration and subsequent ring closure, give bicyclic compounds with a five-membered ring fused to the ring of the starting material. e. g. Condensation of cycloheptanone with readily available acetylenic Mannich bases gives products which may be converted directly to bicyclo [5:3:0] decane derivatives by heating with formic acid-phosphoric acid e.g. C. Substituted cyclohexanones are subjected to ring expansion with a diazo-compound of such a nature that the resulting cycloheptanone possesses a side chain capable of condensing with the ring carbonyl group to yield bicyolo[5:3:0]decane derivatives directly. PART II. ATTEMPTED SYNTHESIS OP THE INDACENES. Attempted syntheses of the postulated quasi-aromatic hydrocarbons, symmetrical and assymmetrical indacenes have been investigated which involve dehydrogenation of the relevant hydroindacenes. The structure assigned to a supposed derivative of s-indacene reported in the literature has been shown to be erroneous.
Item Type: |
Thesis
(PhD)
|
Qualification Level: |
Doctoral |
Keywords: |
Organic chemistry |
Date of Award: |
1954 |
Depositing User: |
Enlighten Team
|
Unique ID: |
glathesis:1954-79122 |
Copyright: |
Copyright of this thesis is held by the author. |
Date Deposited: |
31 Mar 2020 09:09 |
Last Modified: |
31 Mar 2020 09:09 |
URI: |
http://theses.gla.ac.uk/id/eprint/79122 |
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