Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/97762
Type: Artigo de periódico
Title: Gas Phase Ion-molecule Reactions Of Esters With Tert-butyl Chloride
Author: Riveros J.M.
Tiedemann P.W.
De Melo B.C.
Faigle J.F.
Abstract: The gas phase ion-molecule reaction (RCOOR′)H+ + (CH3)3CCl → RC(OR′)(OC4H9)+ + HCl has been investigated for a number of esters (R, R′ = alkyl) by ion cyclotron resonance spectroscopy. This reaction proceeds with sizable rate constants for alkyl formates and methyl chloroacetate, i.e., k = (5.2 ± 1.5) × 10-10 cm3 molecule-1 s-1 for methyl formate. These observations are rationalized in terms of a mechanism in which proton transfer from the ester to the halide and the ease with which a nascent carbonium ion can be generated in the collision complex are proposed to be responsible for the efficiency of these processes. © 1979 American Chemical Society.
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Date Issue: 1979
Appears in Collections:Unicamp - Artigos e Outros Documentos

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