An immobilization of copper(l) in organic-inorganic hybrid materials catalyzed Sonogashira coupling reaction was developed. Terminal alkynes reacted with aryl iodides and aryl bromides in the presence of 3-(2-aminoethylamino)propyl functionalized silica gel immobilized copper(l) catalyst, triphenylphosphine and potassium carbonate in DMF. The reactions generated the corresponding cross-coupling products in good to excellent yields. Furthermore, silica-supported copper was recovered and recycled by a simple filtration of the reaction solution and used for six consecutive trials without decreases in activity.
机构:
Chinese Acad Sci, Fujian Inst Res Struct Matter, State Key Lab Struct Chem, Fuzhou 350002, Peoples R ChinaChinese Acad Sci, Fujian Inst Res Struct Matter, State Key Lab Struct Chem, Fuzhou 350002, Peoples R China
Zhang, Min
Su, Weiping
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Chinese Acad Sci, Fujian Inst Res Struct Matter, State Key Lab Struct Chem, Fuzhou 350002, Peoples R ChinaChinese Acad Sci, Fujian Inst Res Struct Matter, State Key Lab Struct Chem, Fuzhou 350002, Peoples R China
机构:
Michigan State Univ, Dept Chem, 578 South Shaw Lane, E Lansing, MI 48823 USAMichigan State Univ, Dept Chem, 578 South Shaw Lane, E Lansing, MI 48823 USA
Aldrich, Kelly E.
Odom, Aaron L.
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Michigan State Univ, Dept Chem, 578 South Shaw Lane, E Lansing, MI 48823 USAMichigan State Univ, Dept Chem, 578 South Shaw Lane, E Lansing, MI 48823 USA