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Showing 1 to 20 of 37 for “"SOLVOLYSIS"”.
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Solvolysis of cobaltammines
The reactions studied were the aquaton of chloropentammine cobalt III chloride and the anation of aquopentanmine cobalt III ions with chloride ions in various e thanol—water rixtures. First order kinetics were observed for the aquation reaction being first order in cobalt concentration. The rate of …
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Correlation of solvolysis rates
Thesis (Ph.D.) Massachusetts Institute of Technology. Dept. of Chemistry, 1952.
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The Solvolysis of Some Thionbenzoates
Made available in DSpace on 2014-12-09T17:35:07Z (GMT). No. of bitstreams: 1 6503657.pdf: 3319145 bytes, checksum: 1ab22432a2e71db4d9256273a51c8aa3 (MD5) Previous issue date: 1964
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Secondary deuterium isotope effects in the solvolysis of propionyl-D₀, -2, 2-D₂ and -3,3,3-D₃ chlorides
Thesis (M.S.)--Michigan State University. Dept. of Chemistry, 1969
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Part I. The Nuclear Magnetic Resonance of Quaternary Ammonium Salts. Partii. Leaving Group Effects in Some Solvolysis Reactions
Made available in DSpace on 2014-12-09T17:35:16Z (GMT). No. of bitstreams: 1 6511748.pdf: 5533111 bytes, checksum: 9ad51f0e52eefb329f0368ac49c0d690 (MD5) Previous issue date: 1965
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Mechanistic studies of organotellurium chemistry
… A mechanism for the reduction is suggested. The solvolysis of p-EtOPhTeCl3 by methanol in benzene/methanol media has been studied. The study shows that the solvolysis is a reversible, acid catalysed reaction. Replacement of the chlorides on tellurium by methanol is agreed to be associative and …
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The mechanism of the reaction of aryl halides with metallic amides. II. Transannular effects in the solvolysis of cis- and trans-cycloöctene oxide
Thesis: Ph. D., Massachusetts Institute of Technology, Department of Chemistry, 1954
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Mechanistic Studies in Tellurium Chemistry
… an inner-sphere mechanism for its reactions. The solvolysis of p-EtOPhTeCl₃ in aqueous and non-aqueous media has been investigated. The study shows that the solvolysis is a reversible, acid catalysed reaction which is agreed to be associative. The number of chloride ligands on tellurium replaced …
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The beta effect in alkylsilanes
… steric effects dominate. The kinetics of the solvolysis reaction were studied. β-functional alkylsilanes commonly undergo solvolysis by unimolecular elimination at remarkably enhanced rates. The β-hydroxy- and β-methoxy-substituted chloroethyl derivatives reacted substantially slower that …
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Synthesis and kinetic studies of tricyclic phosphates and phosphonates: Effect of phosphorus-oxide stereochemistry on allylic rearrangements
… step syntheses. First order rate constants for solvolysis (k$\sb{\rm s}$) and loss of optical activity (k$\sb\alpha$) were measured for 12a and 12b under solvolytic conditions (30% D$\sb2$O/70% acetone-d$\sb6$, 25$\sp\circ$C). For phosphate 12a, k$\sb\alpha$/k$\sb{\rm s}$ = 1.7 while for 12b, …
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Part I. Solvolysis of Caryophyllen-8-Yl Derivatives: Model Reactions for Presilphiperfolanol Biogenesis. Part II. Stereochemistry of Lithium-Amine Reductions of Tetrasubstituted Epoxides and Phenylthiohydrins to Tertiary Alcohols
A comparative study of the Li-amine reductions of model bicyclic tetrasubstituted epoxides and the corresponding trans-phenylthiohydrins was carried out to determine the stereochemistry and optimal reaction conditions for this transformation. Octalin, hydrindene, and bicyclo (3.3.0) octene epoxides …
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Studies of some elimination and substitution reactions in a series of l-arylnaphthalene tetrachlorides
… processes involved. A slow, unimolecular solvolysis at the 1-chlorine has been observed with 1-Ph-NTC and 1(p-Me-Ph)NTC in methanol-acetone. It is proposed that the major product of this solvolysis results from the replacement of the 1-chlorine by a methoxy-group with retention of …
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Structure and reactivity of cyclic imido derivatives of phosphoric acid
… scheme 9) was relatively stable towards further solvolysis. This was taken by Mulliez8 as evidence for the addition-elimination mechanism of solvolysis, since in such a case 22 would experience the usual rate accelerating effect upon the formation of the pv intermediate with trigonal bipyramidal …
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ΚΙΝΗΤΙΚΗ ΜΕΛΕΤΗ ΚΑΙ ΑΝΑΛΥΤΙΚΕΣ ΕΦΑΡΜΟΓΕΣ ΑΝΤΙΔΡΑΣΕΩΝ 2,4-ΔΙΝΙΤΡΟΦΘΟΡΟΒΕΝΖΟΛΙΟΥ ΜΕ ΧΡΗΣΗ ΕΚΛΕΚΤΙΚΟΥ ΗΛΕΚΤΡΟΔΙΟΥ ΦΘΟΡΙΟΥΧΩΝ
… INWEAK ALKALINE SOLUTIONS. STUDY OF THE SOLVOLYSIS OF 1,2-DINITROFLUOROBENZENE (DNFB) IN MIXED-ORGANIC SOLVENTS-AQUEOUS BUFFER SOLUTIONS. STUDY OF THE REACTIONOF DNFB WITH AMINOACIDS AND DERIVATIVES OF PHARMACEUTICAL INTEREST REACTION ORDERS RATE CONSTANTS AND ACTIVATION ENERGY HAVE BEEN …
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Investigation of the synthesis and thermal rearrangements of 1,2,3,4,5-Pentaphenyl-2,4,-Cyclopentadiene Alkyl Ethers
… ethers - the Williamson Reaction - but rather a solvolysis reaction between 1-bromo-1,2,3,4,5-pentaphenyl-2,4-cyclopentadiene and the appropriate alcohol. Thermal rearrangement of the ethers had been expected to rearrange by a [1,5]-sigmatropic shift of the phenyl group in the 1-position to yield …
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Photolysis of (Halomethyl)naphthalenes: An Investigation of the Heterolysis and Homolysis of Carbon-Halogen Bonds in (Arylmethyl)halides
… ground state 19I and atomic iodine which gives solvolysis product and diiodide radical ion on reaction with methanol. The triplet (halomethyl)naphthalenes are found to be unreactive. Carbon-halogen bond homolysis occurs apparently both from the direct photolysis and from sensitization via …
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