YAGGI N. F.; DOUGLAS K. T., J. CHEM. SOC., CHEM. COMMUNS.,
作者:YAGGI N. F.、 DOUGLAS K. T.
DOI:——
日期:——
Palladium-Catalyzed Synthesis of (<i>Z</i>)-3-Arylthioacrylic Acids and Thiochromenones
作者:Thiruvengadam Palani、Kyungho Park、Kwang Ho Song、Sunwoo Lee
DOI:10.1002/adsc.201201106
日期:2013.4.15
reaction of aryl halides, sodium sulfide pentahydrate (Na2S⋅5 H2O), and propiolic acid in the presence of 2.5% bis(triphenylphosphine)palladium chloride [Pd(PPh3)2Cl2], 5% 1,4‐bis(diphenylphosphino)butane (dppb) and 2 equivalents of 1,8‐diazabicycloundec‐7‐ene (DBU) produces stereoselectively (Z)‐3‐arylthioacrylic acids in good yields. A study of the reaction pathway suggested that the CS bond formation