Kinetics and equilibria of the ring-opening reactions of epoxides with halide ions

Sheth, Pravinchandra R.

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dc.contributor.author	Sheth, Pravinchandra R.
dc.contributor.other	Youngstown State University, degree granting institution.
dc.contributor.other	Youngstown State University. Department of Chemistry.
dc.date.accessioned	2020-08-04T20:47:59Z
dc.date.available	2020-08-04T20:47:59Z
dc.date.issued	1973
dc.identifier.other	907473317
dc.identifier.other	b1678825
dc.identifier.uri	https://jupiter.ysu.edu/record=b1678825
dc.identifier.uri	http://hdl.handle.net/1989/15644
dc.description	vii, 65 leaves : illustrations ; 29 cm Thesis M.S. Youngstown State University 1973. Includes bibliographical references (leaves 63-65).	en_US
dc.description.abstract	A study was made of the reversible ring-opening reactions of epoxides with halide ions in methanol at 25 C. The reactions produce halohydrlns and methoxide ion. The concentration of methoxide ion was determined by a spectrophotometric technique utilizing Its reversible reaction with p-nitrophenol. The rate and equilibrium constants for the reactions of chloride, bromide and Iodide Ions with propylene oxide were evaluated. The equilibrium constants for the reactions of bromide ion with 1-oxasplro[2,5] octane and with l,2-epoxy-2,3-dlmethylbutane were also evaluated. The results showed that alkyl and gem-dialkyl substitution stabilized the epoxide ring toward opening by halide Ions. The extra ring stability obtained by substituting an isopropyl substituent for a hydrogen substituent amounted to at least 3.6 kcal. The results were discussed in terms of possible explanations for the stabilizing effect of alkyl groups.	en_US
dc.description.sponsorship	Youngstown State University. Department of Chemistry.	en_US
dc.language.iso	en_US	en_US
dc.publisher	[Youngstown, Ohio] : Youngstown State University, 1973.	en_US
dc.relation.ispartofseries	Master's Theses;no. 0052
dc.subject	Ring-opening polymerization.	en_US
dc.subject	Chemical kinetics.	en_US
dc.subject	Epoxy compounds.	en_US
dc.title	Kinetics and equilibria of the ring-opening reactions of epoxides with halide ions	en_US
dc.type	Thesis	en_US

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