Thesis-1978-Daudpota.pdf (3.38 MB)
Cyclisation reactions of some arene diazonium salts
thesis
posted on 2018-10-26, 09:28 authored by Abdul S. DaudpotaA brief review of the dediazoniation of benzenediazonium salts
and cyclisation reactions through 2,2'-positions of biphenyls is
presented in order to understand and investigate the scope and
mechanism of the Mascarelli reaction. It has been shown that
2-alkylbiphenyl-2'-yldiazonium salts cyclise under protic and
aprotic conditions to give fluorene derivatives and, in the case
where a nucleophilic counter-ion is present, products in which
cyclisation has not occurred. A number of mechanistic schemes have
been considered and investigated. The reactions carried out in the
presence and absence of oxygen and also in the presence of bromotrichloromethane
exclude pathways involving free radicals. [Continues.]
Funding
Pakistan, Ministry of Education.
History
School
- Science
Department
- Chemistry
Publisher
© A. Shakoor DaudpotaPublisher statement
This work is made available according to the conditions of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) licence. Full details of this licence are available at: https://creativecommons.org/licenses/by-nc-nd/4.0/Publication date
1978Notes
A Doctoral Thesis. Submitted in partial fulfilment of the requirements for the award of Doctor of Philosophy at Loughborough University.Language
- en