Catalytic Asymmetric Synthesis of a Tertiary Benzylic Carbon Center via Phenol-Directed Alkene Hydrogenation
作者:Seb Caille、Rich Crockett、Krishnakumar Ranganathan、Xiang Wang、Jacqueline C. S. Woo、Shawn D. Walker
DOI:10.1021/jo200941r
日期:2011.7.1
required for this transformation is described. To complete the process, a highly enantioselective hydrogenation step afforded the target (1). The importance of the phenol group to the success of this asymmetric transformation is discussed.
Aminoalkoxybenzoyl-benzofuran or benzothiophene derivatives, method for preparing same and compositions containing same
申请人:——
公开号:US20040010011A1
公开(公告)日:2004-01-15
The invention relates to benzofuran or benzothiophene derivatives of general formula:
1
These compounds are of use as medicinal products, in particular in the treatment of pathological syndromes of the cardiovascular system.
afford a series of biologically potent fused seven-membered (6–7–6) ring compounds under mild reaction conditions. This reaction was believed to proceed through Friedel–Crafts type sequential carbometallation followed by protonation to produce phenyldibenz[b,f]oxepines. This method was also extended to synthesize seven-membered rings that are fused with coumarins.