Zobrazeno 1 - 10
of 49
pro vyhledávání: '"Dietrich Doepp"'
Publikováno v:
ARKIVOC, Vol 2004, Iss 1, Pp 130-137 (2004)
Externí odkaz:
https://doaj.org/article/e78f5b34655a4f428c4d2c4c3296b3cf
Autor:
Helene Wahe, Joseph T. Mbafor, Augustin E. Nkengfack, Zacharias T. Fomum, Rafael A. Cherkasov, Olov Sterner, Dietrich Doepp
Publikováno v:
ARKIVOC, Vol 2003, Iss 15, Pp 107-114 (2004)
Externí odkaz:
https://doaj.org/article/b1bd29b086f042af8deda84e90441fbf
Autor:
Helene Wahe, Peter F. Asobo, Rafael A. Cherkasov, Augustin E. Nkengfack, Gabriel N. Folefoc, Zacharias T. Fomum, Dietrich Doepp
Publikováno v:
ARKIVOC, Vol 2003, Iss 14, Pp 170-177 (2003)
Externí odkaz:
https://doaj.org/article/1eab3c2e5bd84fb1a17c07dc4edb7b4a
Autor:
Joerg Rust, Ahmed M. Nour El-Din, Dietrich Doepp, Christian W. Lehmann, Alaa A. Hassan, Aboul-Fetouh E. Mourad
Publikováno v:
Tetrahedron. 62:11618-11626
In a multistep reaction, 3,3′-(2-aryl-2H-isoindol-1,3-ylene)-di-(1,4-naphthoquinone-2-carbonitriles) 13a–f have been formed in 25–61% yield from a series of N-arylisoindolines 8a–f with (1,3-dioxo-2,3-dihydro-1H-inden-2-ylidene)propanedinitri
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::278aafb670ce90adb4afe020314c4843
https://doi.org/10.1016/j.tet.2006.09.070
https://doi.org/10.1016/j.tet.2006.09.070
Publikováno v:
Journal of Heterocyclic Chemistry. 43:849-854
4-Substituted thiosemicarbazides 4a-c reacted with (2,4,7-trinitro-9H-fluoren-9-ylidene)-propanedinitrile (2) in pyridine with admission of air to form spiro[fluorene-9,3′-(1,2,4-triazole)]derivatives 5a-c and (4-substituted thiosemicarbazono)propa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c475e9e3cba4dddc37603117c1001789
https://doi.org/10.1002/jhet.5570430406
https://doi.org/10.1002/jhet.5570430406
Autor:
Mohsen A.-M. Gomaa, Dietrich Doepp
Publikováno v:
Monatshefte f�r Chemie/Chemical Monthly. 135:1557-1561
Novel spiro[1,3-benzodioxole-2,2′-(2′,3′-dihydro-1′H-pyrrol-3′-ones)] were obtained from 2-aminomethylene-2,3-dihydropyrrol-3(1H)-ones and tetrachloro-1,2-benzoquinone in ethanol at room temperature. However, in addition, 3,4-dichloro-7-met
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9ae1a5620b63c1fc4479be8a4ceb4673
https://doi.org/10.1007/s00706-004-0208-4
https://doi.org/10.1007/s00706-004-0208-4
Publikováno v:
ARKIVOC, Vol 2004, Iss 1, Pp 130-137 (2004)
Aminobenzimidazole (1a) and its 5,6-dimethyl derivative 1b react with 4-hydroxy-2- alkynenitriles 2a-d in ethanol under reflux to give 2-amino-4-(1'-hydroxyalkyl)pyrimido(1,2-a)- benzimidazoles 5a-e and in dimethylformamide at 155°C to give (2,2-dia
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a8f6f748ea259d40e7e4550c985d364a
https://doi.org/10.3998/ark.5550190.0005.112
https://doi.org/10.3998/ark.5550190.0005.112
Publikováno v:
Monatshefte f�r Chemie / Chemical Monthly. 135:425-433
Triplet excited unsymmetrically substituted benzils react with 2-morpholinopropenenitrile to form oxetanes. Whereas the selectivity with respect to the site of addition (benzoyl vs. 4-substituted benzoyl) is generally low, the photoadditions observed
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::870f30556e8fc6ad132f6c88fc53b7e1
https://doi.org/10.1007/s00706-003-0115-0
https://doi.org/10.1007/s00706-003-0115-0
Autor:
Dietrich Doepp, Zacharias Tanee Fomum, Rafael A. Cherkasov, Helene Wahe, Augustin Ephrem Nkengfack, Gabriel N. Folefoc, Peter Forche Asobo
Publikováno v:
ARKIVOC, Vol 2003, Iss 14, Pp 170-177 (2003)
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ee1201c3248e200141eb8f2b21928c51
https://doi.org/10.3998/ark.5550190.0004.e16
https://doi.org/10.3998/ark.5550190.0004.e16
Publikováno v:
Zeitschrift für Naturforschung B. 57:460-470
Ethenetetracarbonitrile (2, in benzene solution) and 1,3-dioxoindan-2-ylidene propanedinitrile (4, in ethanol or acetonitrile solution) act on N-aryl-2,3-dihydro-1H-benz[d,e]isoquinolines 6a-d and N-aryl-6,7-dihydro-5H-dibenz[c,e]azepines 11a-d via h
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::883b759575137a269ab461d9e5f2d288
https://doi.org/10.1515/znb-2002-0412
https://doi.org/10.1515/znb-2002-0412