Simple Synthetic Method of Allyl- and Vinyl-Epoxides by Allylation of Carbonyl Groups with Allylic Tins Catalyzed by PbI<sub>2</sub>-HMPA
作者:Ikuya Shibata、Shoji Fukuoka、Akio Baba
DOI:10.1246/cl.1998.533
日期:1998.6
the chemoseletive allylation at the carbonyl groups of α-bromo ketones with allylic tin, where PbI2-HMPA effected as a chemoselective catalyst. Moreover, vinyl epoxides were obtained in one pot procedure by the PbI2-HMPA catalyzed reaction of γ-chloroallyltri-n-butyltin with aldehydes. Because of the mildness of the catalyst, the formed epoxide functionalities were not decomposed.
Germanium(II)-Mediated Reductive Cross-Aldol Reaction of Bromoaldehydes with Aldehydes: NMR Studies and ab Initio Calculations
作者:Shin-ya Tanaka、Nobuo Tagashira、Kouji Chiba、Makoto Yasuda、Akio Baba
DOI:10.1021/jo800904u
日期:2008.8.1
A highly practical reductive cross-aldol reaction of α-bromoaldehydes with various aldehydes has been developed using Ge(II)Cl2 to produce aldehyde germanium(IV) aldolates, which were directly transformed to various multifunctionalized compounds. A remarkable change in stereoselectivity depended on the α-bromoaldehydes employed; secondary α-bromoaldehydes gave syn selectivities, while tertiary α-bromoaldehydes
Novel Pyrimidine- And Triazine-Hepcidine Antagonists
申请人:Dürrenberger Franz
公开号:US20120202806A1
公开(公告)日:2012-08-09
The present invention relates to new hepcidin antagonists, pharmaceutical compositions containing them and the use thereof as a drug, in particular for the treatment of iron metabolism disorders such as, in particular, iron deficiency diseases and anaemia, in particular anaemia associated with chronic inflammatory disease (ACD: anaemia of chronic disease and AI: anaemia of inflammation).
The invention is directed to compounds of formula (1)
and pharmaceutically acceptable salts thereof, methods for the preparation thereof, and methods of use thereof.
这项发明涉及公式(1)的化合物及其药用盐,其制备方法和使用方法。
Reaction of aldehydes and ketones with t-butyl bromide-dimethyl sulphoxide
作者:E. Armani、A. Dossena、R. Marchelli、G. Casnati
DOI:10.1016/s0040-4020(01)88443-x
日期:1984.1
Reacting aldehydes and ketones with the “ButBr-Me2SO” system produces the corresponding α-bromoderivatives 2. In the case of ketones, is possible, bromination is obtained exclusively at the more highly substituted α-position. With slight modifications of the reaction conditions (add to obtain “in situ” formation of either dimethyl(2-oxo-2-phenylalkyl)sulphonium salts 3 or of α-methylthioderivatives