The present disclosure provides compositions and methods for the synthesis and use of croconaine compounds. The disclosed compounds are easily prepared from croconic acid. A halothiophene is reacted with an alkanolamine, the resulting aminothiophene is modified by appending a desired functional group to the hydroxyl group, and the modified aminothiophene is reacted with croconic acid to form the final compound. Applications of such croconaine compounds include photothermal imaging, photothermal therapy, light-activated drug release, and tissue welding.
A mild and practical copper catalyzed amination of halothiophenes
作者:Zhikuan Lu、Robert J. Twieg
DOI:10.1016/j.tet.2004.11.017
日期:2005.1
We have found that N,N-dimethylethanolamine (deanol) is a useful solvent and ligand for copper catalyzed amination of a variety of unactivated and activated 2- or 3-halothiophenes. Primary amines, acyclic secondary amines, cyclic secondary amines and acyclic secondary amines with 2-hydroxyethyl functionality react with halothiophenes in moderate to excellent yields. The mildly basic conditions utilized are compatible with many functional groups. The animation of halobithiophenes has also been examined. The aminothiophenes produced by this method are important intermediates in a variety of electronic and optoelectronic materials. (C) 2004 Elsevier Ltd. All rights reserved.
BENZOFURAN DERIVATIVES
申请人:ELI LILLY AND COMPANY
公开号:EP1246822A1
公开(公告)日:2002-10-09
US9353092B2
申请人:——
公开号:US9353092B2
公开(公告)日:2016-05-31
[EN] BENZOFURAN DERIVATIVES<br/>[FR] DERIVES DE BENZOFURANNE
申请人:LILLY CO ELI
公开号:WO2001046177A1
公开(公告)日:2001-06-28
The present invention provides compounds of formula (I) which are useful for treating depression, anxiety, and alleviating the symptoms caused by withdrawal or partial withdrawal from the use of tobacco or of nicotine.