Stereoselective Negishi-like Couplings Between Alkenyl and Alkyl Halides in Water at Room Temperature
作者:Arkady Krasovskiy、Christophe Duplais、Bruce H. Lipshutz
DOI:10.1021/ol101885t
日期:2010.11.5
Mix in water and then stir. That is all that is required in this new approach to stereoselective sp3−sp2 cross-couplings between an alkyl and alkenyl halide. Prior formation of organozinc reagents is not required.
Organozinc Chemistry Enabled by Micellar Catalysis. Palladium-Catalyzed Cross-Couplings between Alkyl and Aryl <i>Bromides</i> in Water at Room Temperature
作者:Christophe Duplais、Arkady Krasovskiy、Bruce H. Lipshutz
DOI:10.1021/om200846h
日期:2011.11.28
Negishi-like cross-couplings between (functionalized) alkyl and aryl bromides are described. Despite the fact that organozincreagents are intolerant of water, their formation as well as their use in an aqueous micellar environment is discussed herein. Each component of this complex series of events leading up to C–C bond formation has an important role which has been determined insofar as the type
NOVEL COMPOUNDS AND METHODS OF TREATING CELL PROLIFERATIVE DISEASES, RETINOPATHIES AND ARTHRITIS
申请人:LEBLOND Bertrand
公开号:US20090216014A1
公开(公告)日:2009-08-27
The present invention relates to compounds and their uses, particularly in the pharmaceutical industry. The invention discloses compounds having anti-proliferative and antiangiogenic activities, as well as methods for treating various diseases associated with abnormal cell proliferation, including cancer, or associated with unregulated angiogenesis including growth and metastasis of solid tumors, ocular diseases and especially retinopathies, or arthritis, by administering said compounds. It further deals with pharmaceutical compositions comprising said compounds, more particularly useful to treat cancers (such as leukemia), ocular diseases and arthritis.
Cross-couplings of alkyl halides with heteroaromatic halides, in water at room temperature
作者:Arkady Krasovskiy、Isabelle Thomé、Julien Graff、Valeria Krasovskaya、Paul Konopelski、Christophe Duplais、Bruce H. Lipshutz
DOI:10.1016/j.tetlet.2010.11.160
日期:2011.4
Zn-mediated, Pd-catalyzed cross-coupling reactions between heteroaromatic and alkyl halides can be done at room temperature in pure water using a commercially available Pd catalyst and PTS, a nanomicelle-forming amphiphile. Notably, zinc metal inserts selectively into a carbon sp(3)-halide bond, while palladium adds oxidatively to a carbon sp(2)-bond. (C) 2010 Elsevier Ltd. All rights reserved.