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A G. C./M. S. study of the reaction and decomposition products of pentafluorophenyl-grignard and lithium reagents

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dc.contributor.author Lin, Sechoing. en_US
dc.date.accessioned 2009-10-02T13:19:38Z
dc.date.available 2009-10-02T13:19:38Z
dc.date.issued 1975-10-02T13:19:38Z
dc.identifier.uri http://hdl.handle.net/10464/2737
dc.description.abstract Decomposition and side reactions of, and the synthetic use of, pentafluorophenylmagnesium bromide and pentafluorophenyllithium have been investigated using G,C9/M.S, techniques• Their reactions with reagents such as CgF^X (X - H, F, CI, Br, 1), C6F4X2 (X - H, CI)f C6F3C13, C6H6. (CgX5)3P (X = H, F), (C6X5)3P=0 (X = H, F), (CgX5)Si (CH3)3 (X = H, F) and (CH0K SiCl , n = 1,2, in ether or ether/n-hexane were studied• In addition to the principal reaction of synthetic use, namely the replacement of a halogen by a pentafluorophenyl group, two types of side reactions were observed* These were (i) intermolecular loss of LiF via a nucleophilic substitution, and (ii) intramolecular loss of LiF, followed by the addition of either inorganic salts such as lithium or magnesium halides, or organometal compounds such as organolithium or organo-Grigaard* G.C«/M.S. techniques were routinely employed to study complicated reaction mixtures. Although mass spectrometry alone has disadvantages for the identification of isomers, deduction of the most probable pathway often helps overcome this problem. en_US
dc.language.iso eng en_US
dc.publisher Brock University en_US
dc.subject Pentafluorophenyl-grignard. en_US
dc.subject Lithium. en_US
dc.subject Chemical tests and reagents. en_US
dc.subject Grignard reagents. en_US
dc.title A G. C./M. S. study of the reaction and decomposition products of pentafluorophenyl-grignard and lithium reagents en_US
dc.type Electronic Thesis or Dissertation en_US
dc.degree.name M.Sc. Chemistry en_US
dc.degree.level Masters en_US
dc.contributor.department Department of Chemistry en_US
dc.degree.discipline Faculty of Mathematics and Science en_US


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