Zobrazeno 1 - 10 of 10 pro vyhledávání: '"Geerlig W. Wijsman"'
1
A stereospecific anionic reduction of gem-bromohalocyclopropanes by the dimsyl anion
Autor: F.M. Bickelhaupt, W. H. De Wolf, Geerlig W. Wijsman
Publikováno v: Recueil des Travaux Chimiques des Pays-Bas. 113:53-59
The reaction of several 2,2,3,3-tetrasubstituted-gem-bromohalocyclopropanes with t-BuOK in DMSO unexpectedly yielded the monohalocyclopropanes in good yield. A closer investigation revealed that this reaction must be initiated by a nucleophilic attac
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b666f14856ee12c439e7386b41d901e1
https://doi.org/10.1002/recl.19941130108
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2
Hydrogenation of [5]- and [6]Metacyclophane: Reactivity and Thermochemistry
Autor: Friedrich Bickelhaupt, Willem H. de Wolf, Anthony L. Spek, Donald W. Rogers, Maurice J. van Eis, Huub Kooijman, Geerlig W. Wijsman
Publikováno v: Chemistry: A European Journal, 6, 1537-1546. Wiley-VCH Verlag
Van Eis, M J, Wijsman, G W, De Wolf, W H, Bickelhaupt, F, Rogers, D W, Kooiman, H & Spek, A L 2000, ' Hydrogenation of [5]-and [6]Metacyclophane: Reactivity and Thermochemistry ', Chemistry: A European Journal, vol. 6, pp. 1537-1546 . https://doi.org/10.1002/(SICI)1521-3765(20000502)6:9<1537::AID-CHEM1537>3.3.CO;2-5
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::46ac1ef3c9d90cb8a1cb2b39254ea087
https://hdl.handle.net/1871.1/a4203bfe-3365-4ead-956f-aa8d773d3b4c
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3
New one-pot synthesis of a benzonorcaradiene derivative by reduction of naphthalic anhydride with LiAlH4
Autor: Geerlig W. Wijsman, Lars A. van der Veen, Willem H. de Wolf, Friedrich Bickelhaupt
Publikováno v: Journal of the Chemical Society. Perkin Transactions 2, 2, 2095-2098. Chemical Society
Wijsman, G W, van der Veen, L A, de Wolf, W H & Bickelhaupt, F 1997, ' New one-pot synthesis of a benzonorcaradiene derivative by reduction of naphthalic anhydride with LiAlH4. ', Journal of the Chemical Society. Perkin Transactions 2, vol. 2, pp. 2095-2098 . https://doi.org/10.1039/a700605e
Reaction of naphthalic anhydride (naphthalene-1,8-dicarboxylic anhydride) (1) or of 1,8-bis(hydroxymethyl)naphthalene (3) with LiAlH4 in refluxing THF yields the benzonorcaradiene derivatives 2 in yields of up to 50%. It is proposed that in the forma
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::43249964ee0f039874cfa2d6543f1168
https://doi.org/10.1039/a700605e
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6
ChemInform Abstract: Some Investigations on [6]Metacyclophanes
Autor: Willem H. de Wolf, Franciscus J. J. de Kanter, Friedrich Bickelhaupt, Geerlig W. Wijsman
Publikováno v: ChemInform. 33
[6]Metacyclophanes 2 with chlorine or fluorine substituents have been synthesized by a novel, convenient version of the base-catalyzed double elimination of hydrogen chloride from the corresponding halopropellanes 7. Conformational analysis by 1H and
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::1ba15c315f25c42df7477e247f95eda8
https://doi.org/10.1002/chin.200208070
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7
Unusual reactions of halo[5]metacyclophanes
Autor: Willem H. de Wolf, Ben L. M. van Baar, Marcel Schreuder Goedheijt, Geerlig W. Wijsman, Marcus C. Beekman, Friedrich Bickelhaupt, Franciscus J. J. de Kanter, Willem M. Boesveld
Publikováno v: Wijsman, G W, Boesveld, W M, Beekman, M C, Schreuder Goedheijt, M, van Baar, B L M, De Kanter, F J J, De Wolf, W H & Bickelhaupt, F 2002, ' Unusual reactions of halo[5]metacyclophanes ', European Journal of Organic Chemistry, pp. 614-629 . https://doi.org/10.1002/1099-0690(200202)2002:4<614::aid-ejoc614>3.0.co;2-q
European Journal of Organic Chemistry, 614-629. Wiley-VCH Verlag
STARTPAGE=614;ENDPAGE=629;ISSN=1434-193X;TITLE=European Journal of Organic Chemistry
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::60f9b107c8b2867dc46ec3d6ad88dc58
https://hdl.handle.net/1871.1/90200ab6-819b-488e-b4d8-6965e08af3e5
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10
X-ray crystal structures and conformational analysis of bicyclo[5.3.1]undec-1(11)-enes: twisting versus pyradidalization in anti-bredt olefins
Autor: G.A. Iglesias, A. L. Spek, M.C. Beekman, F.M. Bickelhaupt, Geerlig W. Wijsman, de W.H. Wolf, Huub Kooijman
Publikováno v: Journal of Organic Chemistry, 66(4), 1216-27. American Chemical Society
Wijsman, G W, Iglesias, G A, de Wolf, W H, Beekman, M C, Bickelhaupt, F M, Kooijman, H & Spek, A L 2001, ' X-ray crystal structures and conformational analysis of bicyclo[5.3.1]undec-1(11)-enes: twisting versus pyradidalization in anti-bredt olefins ', Journal of Organic Chemistry, vol. 66, no. 4, pp. 1216-27 . https://doi.org/10.1021/jo0013195
Wijsman, G W, Iglesias, G A, Beekman, M C, De Wolf, W H, Bickelhaupt, F, Kooijman, H & Spek, A L 2001, ' X-ray Crystal Structures and Conformational Analysis of Bicyclo[5.3.1]undec-1(11)-enes: Twisting versus Pyramidalization in Anti-Bredt Olefins ', Journal of Organic Chemistry, vol. 66, pp. 1216-1227 . https://doi.org/10.1021/jo0013195
Journal of Organic Chemistry, 66, 1216-1227. American Chemical Society
The synthesis of several 9,11,11-trihalo[5.3.1]propellanes and their 4-dimethylsila analogues is described. They solvolyze under formation of the corresponding isomeric 7,9,11- trihalobicyclo-[5.3.1]undec-1(11)-enes which are "anti-Bredt" olefins wit
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a003d44cd81bd369d081c96b598217b9
https://research.vu.nl/en/publications/9e75fcfc-f5bf-4717-9b16-dda2f08310b1
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