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Durham e-Theses
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Formations and reactions of allenes

Greaves, Peter Michael (1967) Formations and reactions of allenes. Doctoral thesis, Durham University.



Aryl and alkyl l-bromoallenes, 1-iodoallenes, 1,1-dibromoallenes and 1-halo-l-deuteroallenes have been prepared; the mechanism of their formation and their spectroscopic properties are discussed. Conversion of propargylic alcohols to 1-cyanoallenes either directly or via the corresponding allenic bromides is described. The mechanism of formation of cyanoallenes and their spectral properties are discussed. l-oyanoallenes have been converted to enamines, to allenic amides and to allenic acids. Evidence for the structures of dimerisation products of 1-cyanoallenes is presented.1,4-Elimination reactions of l-bromoallenes are shown to give alkenynes in good yield. 1-Bromoallenes form Grignard compounds and these are reacted with carbon dioxide, water, oxygen and acetone to give mixtures of acetylene and allenic products.

Item Type:Thesis (Doctoral)
Award:Doctor of Philosophy
Thesis Date:1967
Copyright:Copyright of this thesis is held by the author
Deposited On:13 Nov 2013 15:37

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