HETEROARYL/ARYL PYRIMIDINE ANALOGS AND THEIR USE AS AGONISTS OF THE WNT-BETA-CATENIN CELLULAR MESSAGING SYSTEM
申请人:BURSAVICH Matthew Gregory
公开号:US20080287452A1
公开(公告)日:2008-11-20
The present invention relates to heteroaryl/aryl pyrimidine analogs, methods of making aryl/heteroaryl pyrimidine analogs, compositions comprising a aryl/heteroaryl pyrimidine analog, and methods for treating canonical Wnt-β-catenin cellular messaging system-related disorders comprising administering to a subject in need thereof an effective amount of a heteroaryl/aryl pyrimidine analog.
Electron-Deficient Olefin Ligands Enable Generation of Quaternary Carbons by Ni-Catalyzed Cross-Coupling
作者:Chung-Yang (Dennis) Huang、Abigail G. Doyle
DOI:10.1021/jacs.5b02503
日期:2015.5.6
A Ni-catalyzed Negishi cross-coupling with 1,1-disubstituted styrenyl aziridines has been developed. This method delivers valuable β-substituted phenethylamines via a challenging reductive elimination that affords a quaternary carbon. A novel electron-deficient olefin ligand, Fro-DO, proved crucial for achieving high rates and chemoselectivity for C-C bond formation over β-H elimination. This ligand
Novel synthetic route to aryl alkanes from aromatic aldehydes and ketones. Novel geminal dialkylation of the carbonyl group of aromatic aldehydes and ketones
作者:Alain Krief、M. Clarembeau、Ph. Barbeaux
DOI:10.1039/c39860000457
日期:——
Benzyl-lithiums, readily available from benzyl methyl selenides and alkyl-lithiums, are efficiently alkylated; this reaction allows the geminaldialkylation of the carbonylgroups of aromaticaldehydes and ketones and the geminal aryl–alkylation of aliphatic analogues.
transformation is composed of two reactions in one pot: manganese-catalyzed arylative or alkylative ring-opening of benzofurans affording dianionic intermediates and subsequent trapping with multivalent heteroatom electrophiles. Various electrophiles containing silicon, boron, phosphorus, germanium, and titanium could be applied to this heteroatom insertion.
Reductive cleavage of N,N,N′,N′-tetramethylphosphorodiamidates with lithium naphthalenide. A convenient procedure for deoxygenation of alcohols
作者:Hsing-Jang Liu、Xiao Shang
DOI:10.1016/s0040-4039(97)10602-5
日期:1998.1
A simple, effective alternative procedure has been developed for the reductive cleavage of the N,N,N′,N′-tetramethylphosphorodiamidate group, using lithium naphthalenide as the reagent.