Zobrazeno 1 - 10
of 121
pro vyhledávání: '"J. Feneau-Dupont"'
Publikováno v:
Bulletin des Sociétés Chimiques Belges. 86:721-724
The interpretation of tridimensional diffraction data shows definitely that the investigated structure belongs to the meso form. The molecular centrosymmetry predicted by space group determination is not a statistical effect despite of the orientatio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7baf233fd70208b7a38daff421db73f1
https://doi.org/10.1002/bscb.19770860909
https://doi.org/10.1002/bscb.19770860909
Autor:
Gabriel Germain, J. Feneau-Dupont, M. Van Meerssche, E. Arte, Bernard Tinant, Jean-Paul Declercq
Publikováno v:
Bulletin des Sociétés Chimiques Belges. 89:985-992
The crystal and molecular structure of the title compounds have been established from X-ray diffractometer data. All possess molecular symmetry: I and III with centrosymmetrical molecules are in the meso configuration; II exhibits non crystallographi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::119dd68145f4c6d1f2fe345dfde153f5
https://doi.org/10.1002/bscb.19800891108
https://doi.org/10.1002/bscb.19800891108
Autor:
J. Feneau-Dupont, Bernard Tinant, Hg. Viehe, B. Deboeck, Zdenek Janousek, Jean-Paul Declercq, S. Jiang
Publikováno v:
Bulletin des Sociétés Chimiques Belges. 104:397-400
The title reactions lead to unique diastereoisomers of pyrrolizidines 1a [dimethyl 2,3-dehydro-1-methyl-3-cyanopyrrolizidine-1,2-dicarboxylate] or 1b [dimethyl 2,3-dehydro-1-(ethoxycarbonylmethyl)1-3-phenyl-pyrrolizidine-1,2-dicarboxylate] with relat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::52c27b0ddbca1c424679e79df110ca08
https://doi.org/10.1002/bscb.19951040607
https://doi.org/10.1002/bscb.19951040607
Publikováno v:
Bulletin des Sociétés Chimiques Belges. 102:631-634
The configuration of the two isomers obtained by the Diels-Alder reaction of the 2-azadiene 1 with N-phenylmaleimide II (scheme) is established by X-ray diffraction: The cycloaddition takes place with a high endo selectivity. The geometry of the two
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1c67b022e7aab24dd0bff1304afd791a
https://doi.org/10.1002/bscb.19931021002
https://doi.org/10.1002/bscb.19931021002
Autor:
J.‐P. Bouillon, J. Feneau-Dupont, C. Wynants, Bernard Tinant, Jean-Paul Declercq, Zdenek Janousek, Hg. Viehe
Publikováno v:
Bulletin des Sociétés Chimiques Belges. 103:243-255
Heterocyclizations of 1,4-bis-nucleophiles with the new 3-trifluoroacetyl-lactams 1a-c differ from 1,2- or 1,3-bisnucleophiles since they proceed without opening of the lactam structure to give benzoxazolidines 4-6, benzothiazolidines 7-9 and benzimi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9e62a4a3c3ffa24cbc34fdcf7b14495b
https://doi.org/10.1002/bscb.19941030511
https://doi.org/10.1002/bscb.19941030511
Publikováno v:
Bulletin des Sociétés Chimiques Belges. 102:635-638
The structures of the two title compouds have been established by X-ray diffraction analysis The configurations of the products obtained show that the Diels-Alder reaction of the azadiene I and II with vinylsulfones (scheme) occurs with full exo sele
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f4b6577f41cfc3987d1b2df4ef8acedf
https://doi.org/10.1002/bscb.19931021003
https://doi.org/10.1002/bscb.19931021003
Autor:
J. Feneau-Dupont, Zdenek Janousek, István E. Markó, Nj. Hindley, Jean-Paul Declercq, Bernard Tinant, Pr. Giles, Js. Svendsen
Publikováno v:
Recueil des Travaux Chimiques des Pays-Bas. 114:239-241
The hydroxylation of Baylis-Hillman adducts 1 is shown to proceed with high levels of diastereocontrol. A mechanistic rationale to explain this selectivity is discussed.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::42ea9bdcacc16c68331f013bdabc17fb
https://doi.org/10.1002/recl.19951140418
https://doi.org/10.1002/recl.19951140418
Publikováno v:
Bulletin des Sociétés Chimiques Belges. 86:717-719
Space group and unit cell parameters determinations on seven examples have proved that the crystalline compounds obtained in the formation of C6H5-CRR'-CRR'-C6H5 derivatives from C6H5-CHRR', are the “meso” centro-symmetric isomers.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7003ed3b85b465125faaae7aa964ae72
https://doi.org/10.1002/bscb.19770860908
https://doi.org/10.1002/bscb.19770860908
Publikováno v:
Bulletin des Sociétés Chimiques Belges. 103:295-297
When catalysed by the Kobayashi: Yb(OTf)3-Binol complex, vinyl ethers and vinyl sulphides undergo highly enantioselective IEDDA reactions with 3-carbomethoxy-2-pyrone.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3e80bb643b21f600095da144d51bc342
https://doi.org/10.1002/bscb.19941030516
https://doi.org/10.1002/bscb.19941030516
Publikováno v:
Tetrahedron. 53:1729-1734
The reaction of enolisable ketones with 1-alkyl-1-cyanohydrazines leads to the corresponding cyanohydrazones. These compounds cyclise under thermal or mildly basic conditions, furnishing the corresponding 5-aminopyrazoles in good yield. In some cases
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::334daef09607586af1fe1e42e6c8b618
https://doi.org/10.1016/s0040-4020(96)01074-5
https://doi.org/10.1016/s0040-4020(96)01074-5