Please use this identifier to cite or link to this item: http://hdl.handle.net/11455/99111
標題: Sequential Ytterbium(III) Triflate Catalyzed One‐Pot Three‐Component Thia‐Michael Addition
作者: Hsin‐Yi Huang
Prof. Chien‐Fu Liang
梁健夫
關鍵字: Michael addition;multicomponent reactions;sulfur;synthetic methods;ytterbium
Project: ASIAN JOURNAL OF ORGANIC CHEMISTRY, Volume 7, Issue 5 May 2018, Pages 955-963
摘要: 
A ytterbium(III) trifluoromethanesulfonate catalyzed one‐pot three‐component thia‐Michael addition reaction of thiolate salts, organic halides, and α,β‐unsaturated compounds has been developed for the formation of carbon‐sulfur bonds. In this study, potassium thioacetate serves as the sulfur source in a nucleophilic substitution reaction, which is followed by a Yb(OTf)3‐catalyzed (OTf=trifluoromethanesulfonate) S‐deacetylation and subsequent thia‐Michael addition reaction. Three important pharmaceutical derivatives were successfully prepared by using the intramolecular version of this one‐pot thia‐Michael addition reaction. The advantages of this YbIII‐catalyzed process include its operational simplicity, its capacity towards the preparation of structurally diverse products in 40–93 % yield, its use of relatively low toxic or nontoxic reagents, and its catalyst loading of only 1–2 mol %.
URI: http://hdl.handle.net/11455/99111
DOI: 10.1002/ajoc.201800087
Appears in Collections:化學系所

Show full item record
 

Google ScholarTM

Check

Altmetric

Altmetric


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.