Zobrazeno 1 - 10
of 27
pro vyhledávání: '"Tobias F. Schneider"'
Publikováno v:
Angewandte Chemie International Edition. 54:4119-4123
Formal anti-carbopalladation reactions of CC triple bonds are uncommon, but highly useful transformations. Alkynes can be designed to give anti-carbopalladation products. Prerequisite is the exclusion of other reaction pathways to provoke the cis-
Publikováno v:
Angewandte Chemie. 127:4192-4196
Formale anti-Carbopalladierungsreaktionen von C-C-Dreifachbindungen sind ungewohnliche, aber auserst nutzliche Transformationen. Alkine, die gezielt anti-Carbopalladierungsprodukte ergeben, werden vorgestellt. Voraussetzung ist der Ausschluss anderer
Publikováno v:
Angewandte Chemie International Edition. 53:5504-5523
The effective use of ring strain has been applied to considerable advantage for the construction of complex systems. The focus here is directed towards cyclopropanes as building blocks for organic synthesis. Although thermodynamics should take the si
Publikováno v:
Angewandte Chemie. 126:5608-5628
Ringspannung gewinnbringend zu nutzen, ist seit jeher fur den Aufbau komplexer Systeme von grosem Vorteil. Schnell richtet sich somit der Blick auf Cyclopropane als Bausteine fur die organische Synthese. Auch wenn die Thermodynamik dabei auf der Seit
Autor:
Daniel B. Werz, Daniel Kratzert, Tobias F. Schneider, Dietmar Stalke, Johannes Kaschel, Christian D. Schmidt
Publikováno v:
Organic Letters. 15:6098-6101
The reaction of donor-substituted alkenes with α-diazo-α-nitro ethyl acetate under Rh catalysis was investigated; respective nitrocyclopropanes with a geminal ester functionality were generated in situ. Strong electron donors immediately led to rin
Autor:
Patrick Schirmer, Christian Maaß, Johannes Kaschel, Dietmar Stalke, Tobias F. Schneider, Daniel B. Werz
Publikováno v:
European Journal of Organic Chemistry. 2013:4539-4551
Rearrangements of furan-, thiophene- and N-Boc-pyrrole-derived donor–acceptor cyclopropanes initiated by Bronsted acids were investigated. Throughout the study, ketones or aldehydes were utilized as accepting moieties and oxygen, sulfur and Boc-pro
Autor:
Daniel B. Werz, Hosahudya N. Gopi, Sandip V. Jadhav, Sachitanand M. Mali, Tobias F. Schneider, Anupam Bandyopadhyay
Publikováno v:
Crystal Growth & Design. 12:5643-5648
Natural as well as synthetic thiazole/oxazole peptides have shown widespread pharmacological and metal binding properties. Herein, phenylalanine- and tyrosine derived thiazole-containing cyclic tripeptides were synthesized, and the influence of the s
Publikováno v:
Angewandte Chemie International Edition. 51:11153-11156
Multiple displacement of oxygen: Electron-rich oligopyrroles and pyrrolo[3,2-e]indoles are generated by a domino process induced by donor-acceptor-substituted cyclopropanes. Up to seven molecules of water are eliminated, thus allowing the introductio
Publikováno v:
Angewandte Chemie. 124:11315-11318
Publikováno v:
Chemistry - A European Journal. 16:11276-11288
The synthesis of oligocyclic oligoacetals using five-membered rings as repetitive unit is described. Furan was used as the starting material, which is converted by a three-step procedure consisting of twofold cyclopropanation, reduction, and oxidativ