Výsledky vyhledávání - "C. G. Kouwenhoven"

[2 + 2] Cycloaddition reactions of heterocyclic compounds with ynamines

Autor: C. G. Kouwenhoven, D. N. Reinhoudt

Publikováno v: Recueil des Travaux Chimiques des Pays-Bas. 95:67-73

Two possible routes have been investigated for the synthesis of 1-heterocycloheptatrienes starting from annulated cyclobutene derivatives. The first approach comprised a [2 + 2 + 2] cycloreversion of tetracyclic compounds prepared from 2,3-bis(methox

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b67f662c4fb627624a2c3c988a7c2e3f
https://doi.org/10.1002/recl.19760950306

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A novel route for the synthesis of 1-benzoxepins and some of their reactions

Autor: D. N. Reinhoudt, C. G. Kouwenhoven

Publikováno v: Recueil des Travaux Chimiques des Pays-Bas. 93:129-132

A 1-benzoxepin has been synthesized in high yield by cycloaddition of 3-pyrrolidinobenzofuran to dimethyl acetylenedicarboxylate, followed by thermal rearrangement of the [2 + 2] cyclo-adduct. A kinetic study of the isomerization revealed that the ri

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::cba93565b39279a05a3dc0e16e278a24
https://doi.org/10.1002/recl.19740930504

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Synthesis of thiepen and thiocin derivatives via ring enlargement

Autor: D. N. Reinhoudt, C. G. Kouwenhoven

Publikováno v: Recueil des Travaux Chimiques des Pays-Bas. 92:865-878

A general method has been developed for the synthesis of two novel classes of heterocyclic compounds, 2,3-(or 2,7)-dihydrothiepins and 2,3-dihydro-8H-thiocins. It comprises the cycloaddition of enamine derivatives of tetrahydro-thiophen-3-ones or 4-t

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::5b4f19a21fabcf3c0f7637bd9215e8db
https://doi.org/10.1002/recl.19730920808

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Cycloaddition reactions involving carbon-carbon double bonds of heteroaromatic compounds

Autor: C. G. Kouwenhoven, D. N. Reinhoudt

Publikováno v: Recueil des Travaux Chimiques des Pays-Bas. 93:321-324

The enamine-like character of a pyrrolidino-substituted carbon-carbon double bond in heteroaromatics has been demonstrated by the fact that such compounds can undergo cycloaddition reactions with 1,3-dipolar reagents such as benzonitrile oxides, diar

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::99de2d6991870c353adef31158688362
https://doi.org/10.1002/recl.19740931207

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A novel method for the synthesis of specifically substituted cycloheptatrienes

Autor: P. Smael, W. J. M. Van Tilborg, C. G. Kouwenhoven, D.N. Reinhoudt, J. P. Visser

Publikováno v: Recueil des Travaux Chimiques des Pays-Bas. 94:85-88

A novel method has been developed for the synthesis of substituted cycloheptatrienes, involving the cycloaddition of substituted cyclopropenes to substituted thiophene 1,1-dioxides followed by expulsion of sulfur dioxide from the cycloadduct. The sco

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::02c4da7ef25f526c3be0811574d901ca
https://doi.org/10.1002/recl.19750940405

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Interaction of thiirene 1,1-dioxides with transition metal complexes

Autor: J. P. Visser, D.N. Reinhoudt, C. G. Kouwenhoven

Publikováno v: Journal of Organometallic Chemistry. 57:403-413

The decomposition of thiirene 1,1-dioxides into sulphur dioxide and the corresponding acetylenes is catalysed by certain transition metal complexes [Pd0 Pt0 and Ir1]. The metal complexes of the substrate are key intermediates in the decomposition. A

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::1353b6e827bcd1af3fd4473ae136e573
https://doi.org/10.1016/s0022-328x(00)86621-8

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