Zobrazeno 1 - 10
of 18
pro vyhledávání: '"Arkadius Pichota"'
Autor:
Ralf Wünsch, Albert K. Beck, Dieter Seebach, Tobias Hintermann, Arkadius Pichota, Volker Gramlich, Hans-Ulrich Bichsel, W. Bernd Schweizer, Thomas Knöpfel, Thomas Styner
Publikováno v:
Helvetica Chimica Acta. 95:1273-1302
Publikováno v:
Helvetica Chimica Acta. 95:1239-1272
The chloro alcohols 4–6 derived from TADDOLs (=α,α,α′,α′-tetraaryl-1,3-dioxolan-4,5-dimethanols) are used to prepare corresponding sulfanyl alcohols, ethers, and amines (Scheme 1 and Table 1). The dithiol analog of TADDOL and derivatives th
Autor:
Wai Ling Chan, Bo Zhang, Thomas H. Keller, Wouter Schul, Min Qing, Pei Yong Shi, Andy Yip, Kristen A. Bernard, Gang Zou, Hao Ying Xu, Suresh B. Lakshminarayana, Gang Wang, Anne Goh, Wei Liu, Min Dong, Boping Liu, Hui Pen Tan, Handan He, Qing Yin Wang, Margaret Weaver, Feng Gu, Yen Liang Chen, Zheng Yin, Pornwaratt Niyomrattanakit, Chuan Young Ng, Arkadius Pichota, Christine E. Garrett, Véronique Dartois, Joanne Y.H. Lim, Ravinder Reddy Kondreddi, Jeyaraj Duraiswamy, Kai Lin, Chin Chin Lim, Karen Beltz
Publikováno v:
Proceedings of the National Academy of Sciences. 106:20435-20439
Dengue virus (DENV), a mosquito-borne flavivirus, is a major public health threat. The virus poses risk to 2.5 billion people worldwide and causes 50 to 100 million human infections each year. Neither a vaccine nor an antiviral therapy is currently a
Publikováno v:
Current Opinion in Chemical Biology. 10:357-361
The introduction of Lipinski's 'Rule of Five' has initiated a profound shift in the thinking paradigm of medicinal chemists. Understanding the difference between biologically active small molecules and drugs became a priority in the drug discovery pr
Publikováno v:
Angewandte Chemie International Edition. 39:153-156
The new, stable, chiral thiol-TADDOL Cu(I) catalysts 1 (X=OH, OMe, NMe(2)) reveal an unexpected monodentate complexation mode, both in solution and in the solid state. For the first time, the aggregation state of organocopper complexes has been deter
Publikováno v:
Angewandte Chemie. 112:157-160
Die stabilen chiralen CuI-Katalysatoren1 (X=OH, OMe, NMe2) enthalten sowohl in Losung als auch im Festkorper die Thiol-TADDOL-Derivate unerwartet einzahnig koordiniert. Zum ersten Mal wurde die Aggregation von Organokupferkomplexen durch NMR-Diffusio
Autor:
and Jaana Karjalainen, Anthony B. Pinkerton, Albert K. Beck, Dieter Seebach, Volker Gramlich, Thomas Litz, Arkadius Pichota
Publikováno v:
Scopus-Elsevier
Substitution of one or both TADDOL OH groups by other functional groups X, Y is key to new applications of this cheap chiral auxiliary. The Appel reaction and treatment with SOCl2 provide the mono- and dichlorides, respectively. The chlorides are, in
Publikováno v:
Helvetica Chimica Acta. 80:2515-2519
Two simple thiols derived from the parent TADDOL, α,α,α′,α′ tetraphenyl-2,2-dimethyl-1,3-clioxolan-4,5-dimethanol, are used to prepare Cu1 complexes C and D to catalyze (0.05 equiv.) 1,4-additions of Grignard reagents RMgCl to cyclic enones w
Publikováno v:
ChemInform. 44
Autor:
Christof Sparr, W. Bernd Schweizer, Ralf Wuensch, Albert K. Beck, Arkadius Pichota, Dieter Seebach, Hans-Ulrich Bichsel
Publikováno v:
ChemInform. 44
A brief overview is given involving the role of TADDOLs as H-bond donors and the importance of an intramolecular H-bond for acidity enhancement.