Synthesis of annulated bis-indoles through Au(<scp>i</scp>)/Brønsted acid-catalyzed reactions of (1H-indol-3-yl)(aryl)methanols with 2-(arylethynyl)-1H-indoles
作者:Suleman M. Inamdar、Rajesh G. Gonnade、Nitin T. Patil
DOI:10.1039/c6ob02595a
日期:——
pyrrole-annulated indoles using 2-(phenylethynyl)-1H-indoles and phenyl(1H-pyrrol-2-yl)methanols. Furthermore, the use of a ternary catalyst system, involving PdCl2/Brønsted acid/Ph3PAuOTf catalysts, has been realized for the synthesis of annulated bis-indoles starting directly from 2-(phenylbuta-1,3-diyn-1-yl)aniline and (1H-indol-3-yl)(aryl)methanol. Mechanistically, this reaction is very interesting since
Disclosed is a method for producing an optically active alcohol including reacting a titanium compound, an aromatic magnesium compound and a carbonyl compound in the presence of an optically active biphenol compound having a predetermined structure and an ether compound having a predetermined structure.
Novel glycerol derivative and anti-hypertensive agent
申请人:NIPPON CHEMIPHAR CO., LTD.
公开号:EP0284395A2
公开(公告)日:1988-09-28
A novel glycerol derivative which is effective to reduce blood pressure has the formula:
wherein R¹ is an alkyl group having 10-22 carbon atoms, R² is lower acyl, benzoyl, aryl, mono-, di- or triarylalkyl, alkyl, cycloalkyl, or cycloalkylalkyl; Q is substituted or unsubstituted alkylene containing 1-4 carbon atoms, ℓ is 0 or 1; Y is a nitrogen-containing heterocyclic group or a nitrogen-containing bridged heterocyclic group (-(Q)ℓ- is attached to a carbon atom contained in a hetero-ring of the heterocyclic group) in which Y is the bridged heterocyclic group where ℓ is 0; and each of R⁵, R⁶ and R⁷ is hydrogen, lower alkyl, aryl or aralkyl.
Disclosed is a method for producing an optically active alcohol including reacting a titanium compound, an aromatic magnesium compound and a carbonyl compound in the presence of an optically active biphenol compound having a predetermined structure and an ether compound having a predetermined structure.