Výsledky vyhledávání - "John L. Courtneidge"

Radicals and Radical Ions Derived from 1,3-Dienes

Autor: John L. Courtneidge, Alwyn G. Davies

Publikováno v: Bulletin des Sociétés Chimiques Belges. 93:329-336

Recent improvements in experimental methods have made it possible to generate radicals and radical ions derived from simple 1,3-dienes, so that their e.s.r. spectra can be observed in fluid solution. Photolysis of various cyclopentadienylmetallic com

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a727276af8f9f01eeb71f7ec8ca5e1f2
https://doi.org/10.1002/bscb.19840930409

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Alkoxyl radicals from alcohols. Spectroscopic detection of intermediate alkyl and acyl hypoiodites in the Suárez and Beebe reactions

Autor: Janusz Lusztyk, John L. Courtneidge, Daniel Pagé

Publikováno v: Tetrahedron Letters. 35:1003-1006

Acetyl hypoiodite and a number of alkyl hypoiodites have been characterized as intermediates in the conversion of alcohols into alkoxyl radicals under Suarez (photostimulated iodosobenzenediactetate/iodine reagent) and Beebe (photolysed acetyl hypoio

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::469a5d2a1c0df88f4b5a97524d58cc65
https://doi.org/10.1016/s0040-4039(00)79950-3

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ChemInform Abstract: Preparation of Unsaturated Hydroperoxides from N-Alkenyl-N′-p- tosylhydrazines

Autor: A. J. Bloodworth, Richard J. Curtis, Michael D. Spencer, John L. Courtneidge

Publikováno v: ChemInform. 22

Unsaturated hydroperoxides (R1R2CHO2H), 2-phenylpent-4-enyl hydroperoxide (1), 3-phenylhex-5-en-2-yl hydroperoxide (2), 5-methylhex-5-en-2-yl hydroperoxide (3), cyclo-oct-4-enyl hydroperoxide (18), and cyclo-oct-3-enyl hydroperoxide (24) have each be

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::0942fec4ade2eb03f781095c4902da34
https://doi.org/10.1002/chin.199107121

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ChemInform Abstract: Initiated, tert-Butyl Hydroperoxide-Loaded, Low-Temperature Autoxidation of Alkenes: A Chemoselective Synthesis of Allylic Hydroperoxides, Allowing Analysis of the Regioselectivity of Hydrogen Atom Abstraction from Some Unsymmetricall

Autor: Melanie Bush, John L. Courtneidge

Publikováno v: ChemInform. 23

A method for the preparation of allylic hydroperoxides is introduced: the method involves the rapid, low-temperature, initiated autoxidation of an alkene (in these instances 1-methylcyclohexene and the isomeric 4-methyloct-4-enes) in the presence of

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::52724b462880ffef506ea4e9b44747d9
https://doi.org/10.1002/chin.199239112

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ChemInform Abstract: Initiated tert-Butyl Hydroperoxide-Loaded Low-Temperature Autoxidation of Alkenes: Alternative Hydroperoxide Syntheses and the Preparation of a Complete Set of Reference Materials

Autor: Melanie Bush, John L. Courtneidge, L. S. Loh

Publikováno v: ChemInform. 23

A complete set of characterization data for the allylic hydroperoxides prepared from 1-methylcyclohexene and the isomeric 4-methyloct-4-enes is presented. The data relies upon the preparation of allylic hydroperoxides by tert-butyl hydroperoxide-load

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::6e362d24d407fc1fc24eba6b38ba861e
https://doi.org/10.1002/chin.199239113

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ChemInform Abstract: β-Peroxyalkyl Radicals and Their Role in the Generation of Epoxides During the Autoxidation of Alkenes. An Example of the Interplay of Free Radical, Peroxide and Organometallic Chemistries

Autor: Melanie Bush, John L. Courtneidge

Publikováno v: ChemInform. 24

The systematics of the γ-scission reactions of β-peroxyalkyl radicals to yield epoxides have been extended to include variations in the degree of alkylation at the α- and β-carbon atoms and in the nature of the departing alkoxyl radical. The rati

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c0a6ef0b8daa317aa28635342738df2d
https://doi.org/10.1002/chin.199301115

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ChemInform Abstract: 5-Endo Ring Closures of Allylic Hydroperoxides: Useful Routes to 1,2- Dioxolanes Involving Strongly Stereoselective Free Radical and Polar Reactions

Autor: L. S. Loh, Melanie Bush, John L. Courtneidge

Publikováno v: ChemInform. 23

Intramolecular cyclisation of simple allylic hydroperoxides to give substituted 1,2—dioxolanes using electrophilic reagents has been investigated. Closure using mercury(II) acetate and electrophilic halogen reagents (NBS, Br 2 Bu t OC1) occurs by M

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::4c8055ec71e39f29695d60acb2d74d00
https://doi.org/10.1002/chin.199236152

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β-Peroxyalkyl radicals and their role in the generation of epoxides during the autoxidation of alkenes. An example of the interplay of free radical, peroxide and organometallic chemistries

Autor: Melanie Bush, John L. Courtneidge

Publikováno v: Journal of Organometallic Chemistry. 437:57-76

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c92450f93c2ec6a9602382e7812d8ba8
https://doi.org/10.1016/0022-328x(92)83431-g

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Alkoxyl radicals from alcohols I. The hypoiodite reaction of cyclopentanol: evidence for sequential rather than competitive reaction pathways

Autor: John L. Courtneidge

Publikováno v: Tetrahedron Letters. 33:3053-3056

The representative photostimulated hypoiodite reaction of cyclopentanol with mercury(II) oxide and iodien gives products formed by a sequence of iodoaldehyde formation, followed by consumption to give Baeyer-Villiger and hydrolysis products.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::220028c4a695f67f6552f2763c6d9c9b
https://doi.org/10.1016/s0040-4039(00)79598-0

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