121st General Meeting of the KCS

Type Poster Presentation
Area Organic Chemistry
Room No. Event Hall
Time 4월 19일 (목요일) 11:00~12:30
Code ORGN.P-507
Subject Palladium Catalyzed Enantioselective Cycloreduction of 1,6-Enynes and Enediynes by Use of Chiral Phosphoramidite Ligands and Synthetic Approach of Capnellene via Palladium-Catalyzed Cycloreduction
Authors Hee Gun Park, Jin Wook Han1,*, Chang Ho Oh1,*
Department of Chemistry, Institute of NanoScience and Technology, Hanyang University, Korea
1Department of Chemistry, Hanyang University, Korea
Abstract

Recently we reported that Pd-catalyzed asymmetric cycloreductions of 1,6-enynes for monocyclic compounds and synthesis of enediyne for tricyclic compound. Especially 3,3’-substitution of chiral phosphoramidite ligand showed good yield and enantioselectivity. Herein, we wish to report that chiral phosphoramidite ligands having 3,3’-substituted on binaphthol skeleton enhanced catalytic activity and enantio selectivity. Pd-catalyzed cycloreduction of enediyne was also studied to give tricyclic compounds, which is able to be used in total synthesis of Capnellene. Capnellene have demonstrated potential as a pharmaceutical agent with antibacterial, anti-tumor properties and anti-inflammatory.

E-mail warries@hanmail.net