Zobrazeno 1 - 10 of 13 pro vyhledávání: '"J. W. Greidanus"'
1
Chemistry of acetylenic ethers. XXIII. Some reactions of acetylenic thioethers
Autor: J. H. van den Hende, J. W. Greidanus, T. Doornbos, H. C. Volger, J. F. Arens, J. Bonnema
Publikováno v: Recueil des Travaux Chimiques des Pays-Bas. 75:1459-1472
From acetylenic thioethers, Grignard or lithium derivatives can be obtained, which react with carbonyl compounds to yield the expected carbinols. The reactions with carbon dioxide and ethyl chlorocarbonate also are normal. By oxidative “dimerisatio
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::8f81c7673761addcfcaeb8c2287b33fb
https://doi.org/10.1002/recl.19560751214
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2
Chemistry of 2-Substituted Adamantanes. V. Photolysis of 2-Adamantyl Azidoformate
Autor: J. W. Greidanus
Publikováno v: Canadian Journal of Chemistry. 52:1062-1065
In an attempt to prepare adamanto[1,2-d]oxazolidin-2-one (2), 2-adamantyl azidoformate was subjected to photolysis in cyclohexane. The main product 8 (yield 41%) is formed by intermolecular insertion of the nitrene in the solvent. The only other pure
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::d4170f783604afe5579068caa3543eb5
https://doi.org/10.1139/v74-169
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4
Chemistry of 2-substituted adamantanes. II. Preparation of 2-adamantanethiol and some of its derivatives. Aromatic solvent-induced shifts in their n.m.r. spectra
Autor: J. W. Greidanus
Publikováno v: Canadian Journal of Chemistry. 48:3593-3597
Reduction (NaBH4) of adamantanethione gives high yields of pure 2-adamantanethiol, from which several derivatives including the methyl sulfide, sulfoxide, and sulfone were prepared. The sulfenyl chloride was prepared and used insitu. From the n.m.r.
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::dfbd49befbc163937693bc47ec1f7706
https://doi.org/10.1139/v70-602
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5
Nuclear magnetic resonance study of intramolecular electronic effects in diphenyl sulfides, sulfoxides, and sulfones
Autor: J. W. Greidanus, J. B. Hyne
Publikováno v: Canadian Journal of Chemistry. 47:803-812
A nuclear magnetic resonance (n.m.r.) method has been applied to the study of variations in electron density in the aromatic rings of para-disubstituted diphenyl sulfides, sulfoxides and sulfones. The n.m.r. response of the aromatic ring protons has
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::2eee5e1674af78500cd90c9c71c78e5f
https://doi.org/10.1139/v69-129
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6
Chemistry of 2-substituted adamantanes. I. Adamantanethione, its dimer and trimer
Autor: J. W. Greidanus
Publikováno v: Canadian Journal of Chemistry. 48:3530-3536
The preparation of adamantanethione from adamantanone is reported, either via 2-ethoxy-2-adamantanethiol or directly with the aid of phosphorus pentasulfide. The conditions for the latter reaction were developed so as to give the highest yield (91%).
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::434c71fd635f6ddb0a8581ec96d2f491
https://doi.org/10.1139/v70-590
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7
Chemistry of 2-Substituted Adamantanes. III. Mass Spectra of 1- and 2-Adamantanethiol, 2-Adamantanol, and 2-Adamantanamine
Autor: J. W. Greidanus
Publikováno v: Canadian Journal of Chemistry. 49:3210-3215
The mass spectra of 1- and 2-adamantanethiol (1 and 2a), 2-adamantanol (2c), and 2-adamantanamine (2d) have been studied. The isomeric thiols give almost identical spectra and loss of the sulfhydryl radical produces the most abundant ion, while the m
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::4208e313d914eb5913f55d25f2a61152
https://doi.org/10.1139/v71-534
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