Zobrazeno 1 - 10
of 27
pro vyhledávání: '"Mónica Söllhuber"'
Autor:
María Carmen Bravo-Llatas, Juan Domingo Sánchez Cebrián, Marta Hortelano Morales, Marcello Capacchione, Andrés Rafael Alcántara León, Carmen del Campo Pérez, Olmo Martín Cámara, María Fernández Fernández, Loreto Salazar Martínez de Pisón, Pilar Cledera Crespo, Pilar López-Alvarado Gutiérrez, Giorgio Giorgi, Carmen Freire, Mónica Söllhuber Kretzer
Publikováno v:
INTED Proceedings.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b9f01149d0495b9e797f95b7b0d5558b
https://doi.org/10.21125/inted.2020.0268
https://doi.org/10.21125/inted.2020.0268
Publikováno v:
Tetrahedron: Asymmetry. 12:3019-3028
The 1-methyl(iso-propyl)-2-benzyl-2,4-dihydro-1H-pyrazino[2,1-b]quinazoline-3,6-diones 8 and 9 could be regio- and diastereoselectively alkylated at C(4) with retention of configuration at both stereocentres.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1c6a298b9521d5c86c8cf183a8b381eb
https://doi.org/10.1016/s0957-4166(01)00515-8
https://doi.org/10.1016/s0957-4166(01)00515-8
Publikováno v:
Synlett. 2001:1387-1390
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9905d83dae16dc32b588ccaefa891b0c
https://doi.org/10.1055/s-2001-16785
https://doi.org/10.1055/s-2001-16785
Publikováno v:
Tetrahedron: Asymmetry. 9:4275-4284
The substitution of the 4-methyl group by a 4-isopropyl group in the 2-benzyl-2,4-dihydro-1H-pyrazino[2,1-b]quinazoline-3,6-dione system allows a notable improvement in the stereoselective alkylation at C-1. The configuration of the newly introduced
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::807e00aec6a283244930af5e140cb7f4
https://doi.org/10.1016/s0957-4166(98)00464-9
https://doi.org/10.1016/s0957-4166(98)00464-9
Publikováno v:
Tetrahedron: Asymmetry. 9:483-501
Alkyl halides behave differently to benzyl halides in C-1 alkylation of the title compounds. The syn and anti 1,4-disubstituted diastereomers thus obtained show different regioselectivity by further alkylation leading to the 1,4,4- and 1,1,4-trisubst
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::76c818ca40bdb08262a60a5119484295
https://doi.org/10.1016/s0957-4166(97)00629-0
https://doi.org/10.1016/s0957-4166(97)00629-0
Publikováno v:
Tetrahedron: Asymmetry. 9:249-258
Acylation of 1 leads to the syn derivatives 2 . Traces of the anti isomers equilibrate to the syn isomers when stored in CHCl 3 . Aldol condensation showed great diastereoselectivity, but racemization could not be avoided. The configuration of the ne
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::700a333632afd5725795ba673fb64e0b
https://doi.org/10.1016/s0957-4166(97)00614-9
https://doi.org/10.1016/s0957-4166(97)00614-9
Autor:
Félix L. Buenadicha, Carmen Avendaño, Modesta Espada, Sonsoles Martín-Santamaría, Mónica Söllhuber
Publikováno v:
The Journal of Organic Chemistry. 62:6424-6428
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::77d7973d73042cc105d9bcbdad387dfe
https://doi.org/10.1021/jo970037a
https://doi.org/10.1021/jo970037a
Publikováno v:
Tetrahedron. 53:3231-3242
Michael addition of lithiated 2,5-dimethoxypivaloylaniline to diisopropyl arylidenmalonates, followed by acid cyclization, affords 5,8-dimethoxy-4-aryl-3,4-dihydro-2(1 H )quinolinones ( 5 ). These compounds are very inert to the 3,4-dehydrogenation,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ab3cead81e67d12cb13ef6baaa7209a6
https://doi.org/10.1016/s0040-4020(97)00034-3
https://doi.org/10.1016/s0040-4020(97)00034-3
Publikováno v:
Liebigs Annalen. 1995:1895-1899
The title compounds 12, which are key intermediates for antitumoral diazaquinomycin A analogues, are obtained by intramolecular Wittig reaction of 1‐[3′,6′‐dimethoxy‐2′‐(α‐oxoacylamino)phenyl]alkyltriphenylphosphonium salts 11, which
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a4307adaf6dbb4644bec0abd95ddc60b
https://doi.org/10.1002/jlac.1995199510266
https://doi.org/10.1002/jlac.1995199510266
Publikováno v:
Journal of Heterocyclic Chemistry. 29:1541-1544
The synthesis of 6β‐hydroxy‐ and 6β,7β‐dihydroxy‐8‐alkyl‐8‐azabicyclo[3.2.1]octane‐3‐spiro‐5′‐hydantoins was stereoselectively achieved by Bucherer‐Bergs reaction of the corresponding ketones. An α configuration on C3 wa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::24b69b87fc91d35b3712c2d23f5e77a5
https://doi.org/10.1002/jhet.5570290628
https://doi.org/10.1002/jhet.5570290628