Zobrazeno 1 - 10
of 14
pro vyhledávání: '"Alexander Düfert"'
Publikováno v:
Organic Process Research & Development. 23:1631-1637
The Suzuki–Miyaura reaction is one of the most widely employed transformations in synthetic chemistry. Despite extensive investigation, questions remain about the mechanistic nature of the transmetalation step when catalysts based on advanced ligan
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::21ecb1e494ecae8f80a6fe0108405df1
https://doi.org/10.1021/acs.oprd.9b00255
https://doi.org/10.1021/acs.oprd.9b00255
Autor:
Lutz F. Tietze, Christian Maaß, Tim Hungerland, Alexander Düfert, Dietmar Stalke, Christoph Eichhorst
Publikováno v:
Angewandte Chemie. 125:3756-3759
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3e8e7d7e4ae446b46f93aeec36b90198
https://doi.org/10.1002/ange.201209510
https://doi.org/10.1002/ange.201209510
Publikováno v:
Chemistry - A European Journal. 18:3286-3291
Helical tetrasubstituted alkenes (7) were obtained in a highly efficient way through a palladium-catalyzed domino-carbopalladation/CH-activation reaction of propargylic alcohols 6 in good to excellent yields. Electron-withdrawing- and electron-donati
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0ab7746f6d73be20c66368083be39ad1
https://doi.org/10.1002/chem.201103209
https://doi.org/10.1002/chem.201103209
Autor:
Lutz F. Tietze, Niels Böhnke, M. Alexander Düfert, Simone Dietz, Dietmar Stalke, Ina Objartel
Publikováno v:
European Journal of Organic Chemistry. 2011:6574-6580
The three-component domino Knoevenagel/hetero-Diels–Alder reaction of nitroacetone (6), formaldehyde and ethoxyvinylacetate (4) leads to dihydropyrans 10 and 11, which after hydrogenation of the double bond as well as consecutive reduction of the n
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6ad9703a4e0f77619bbb00a3c2656ef7
https://doi.org/10.1002/ejoc.201100725
https://doi.org/10.1002/ejoc.201100725
Autor:
Alexander Düfert, Lutz F. Tietze
Publikováno v:
Pure and Applied Chemistry. 82:1375-1392
The efficient synthesis of natural products, drugs, and materials with economical and ecological advantages is a very important goal in modern synthetic chemistry. In such an approach, toxic substrates as well as reagents have to be avoided, the amou
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9ece127cae27801ef62f853ca7b64e90
https://doi.org/10.1351/pac-con-09-12-10
https://doi.org/10.1351/pac-con-09-12-10
Autor:
Alexander Düfert, Nina Tölle, Serry A. A. El Bialy, Lutz F. Tietze, Holger Braun, Peter L. Steck
Publikováno v:
Tetrahedron. 63:6437-6445
The synthesis of cephalotaxine- and cephalotaxine amide analogues 14a – c and 16a – c as well as of the deoxyharringtonine analogues 5a , b was performed employing a trimethylaluminium-mediated domino reaction of 9a – c and 8 to give the spiroc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8eef37bb4588ea3e01af7b5605788f2d
https://doi.org/10.1016/j.tet.2007.03.020
https://doi.org/10.1016/j.tet.2007.03.020
Publikováno v:
Journal of the American Chemical Society. 135(34)
The Suzuki-Miyaura cross-coupling of unprotected, nitrogen-rich heterocycles using precatalysts P1 or P2 is reported. The procedure allows for the reaction of variously substituted indazole, benzimidazole, pyrazole, indole, oxindole, and azaindole ha
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6afba0859697536431c85887a4a0658f
https://pubmed.ncbi.nlm.nih.gov/23909907
https://pubmed.ncbi.nlm.nih.gov/23909907
Publikováno v:
Modern Tools for the Synthesis of Complex Bioactive Molecules
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c041fc38835950aef5da7e56bdb7d21f
https://doi.org/10.1002/9781118342886.ch9
https://doi.org/10.1002/9781118342886.ch9
Publikováno v:
Chemistry (Weinheim an der Bergstrasse, Germany). 17(30)
Molecular switches based on helical tetrasubstituted alkenes, substituted with either electron-withdrawing (CF(3), F, CN; 2a-c, 3a,c) or -donating substituents (Me, OMe; 2d,e), have been synthesized from acyclic precursors 4 and 5 in a domino carbopa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::43b841900428b625861e2ac13998c542
https://pubmed.ncbi.nlm.nih.gov/21671289
https://pubmed.ncbi.nlm.nih.gov/21671289
Autor:
Lutz F. Tietze, Alexander Düfert
Publikováno v:
Catalytic Asymmetric Conjugate Reactions
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ab1bbac2645360d5093b71b13441aaa7
https://doi.org/10.1002/9783527630578.ch8
https://doi.org/10.1002/9783527630578.ch8