Synthesis of Sulfur−Sulfur Bond Formation from Thioamides Promoted by 2,3-Dichloro-5,6-dicyanobenzoquinone
摘要:
A mild and efficient synthesis of sulfur-sulfur bond formation from thioformanilides with 2,3-dichloro-5,6-dicyanobenzoquinone (DDQ) is described. Functionality on the aromatic ring plays a key role in the formation of a sulfur-sulfur bond.
An efficient and rapid procedure for microwave-assisted aminocarbonylation of aryl bromides and iodides at low CO pressure, using (PPh3)2PdCl2 or Pd(OAc)2 as catalysts is reported. Different reaction conditions have been tested in order to carry out the reaction even on less nucleophilic anilines such as 2-chloro-4-nitroaniline, allowing a rapid access (in 20-30 min) to several diverse arylamides in good yields.
Synthesis of Sulfur−Sulfur Bond Formation from Thioamides Promoted by 2,3-Dichloro-5,6-dicyanobenzoquinone
作者:Wei-Sheng Lo、Wan-Ping Hu、Hsiao-Ping Lo、Chung-Yu Chen、Chai-Lin Kao、Jaya Kishore Vandavasi、Jeh-Jeng Wang
DOI:10.1021/ol102455x
日期:2010.12.3
A mild and efficient synthesis of sulfur-sulfur bond formation from thioformanilides with 2,3-dichloro-5,6-dicyanobenzoquinone (DDQ) is described. Functionality on the aromatic ring plays a key role in the formation of a sulfur-sulfur bond.