洛阳师范学院学报
洛暘師範學院學報
락양사범학원학보
Journal of Luoyang Teachers College
2013年
5期
47~50
,共null页
李红梅 娄新华 王志强 徐晨
李紅梅 婁新華 王誌彊 徐晨
리홍매 루신화 왕지강 서신
聚乙二醇 氮杂环卡宾钯化合物 水相 Suzuki偶联反应
聚乙二醇 氮雜環卡賓鈀化閤物 水相 Suzuki偶聯反應
취을이순 담잡배잡빈파화합물 수상 Suzuki우련반응
polyethylene glycol; N-heterocyclic carbene palladium complex; water; Suzuki reaction
含溴原子的环钯化合物[PdCl{[(η5-C5H5)]Fe[(η5-C5H3)-NC5H3-Bd}(C3N2H2)(C6H]-2C3H7)2]}(化合物1)与聚乙二醇(PEG)-10000反应,合成出聚乙二醇负载氮杂环卡宾环钯化合物1-PEG(10000).用红外光谱和核磁共振对其结构进行表征.以水为溶剂,K3PO。为碱,1-PEG(10000)能高效催化各种氯代芳烃的Suzuki偶联反应,该催化体系循环使用3次,还能保持较高的催化活性.
含溴原子的環鈀化閤物[PdCl{[(η5-C5H5)]Fe[(η5-C5H3)-NC5H3-Bd}(C3N2H2)(C6H]-2C3H7)2]}(化閤物1)與聚乙二醇(PEG)-10000反應,閤成齣聚乙二醇負載氮雜環卡賓環鈀化閤物1-PEG(10000).用紅外光譜和覈磁共振對其結構進行錶徵.以水為溶劑,K3PO。為堿,1-PEG(10000)能高效催化各種氯代芳烴的Suzuki偶聯反應,該催化體繫循環使用3次,還能保持較高的催化活性.
함추원자적배파화합물[PdCl{[(η5-C5H5)]Fe[(η5-C5H3)-NC5H3-Bd}(C3N2H2)(C6H]-2C3H7)2]}(화합물1)여취을이순(PEG)-10000반응,합성출취을이순부재담잡배잡빈배파화합물1-PEG(10000).용홍외광보화핵자공진대기결구진행표정.이수위용제,K3PO。위감,1-PEG(10000)능고효최화각충록대방경적Suzuki우련반응,해최화체계순배사용3차,환능보지교고적최화활성.
Polyethylene glycol-supported N-heterocyclic carbene palladium complex [ 1 -PEG(10000) ] have been prepared from [PdCl{[(η5-C5H5)]Fe[(η5-C5H3)-NC5H3-Bd}(C3N2H2)(C6H]-2C3H7)2]}1 and PEG- 10000. The compound has been characterized by infrared spectroscopy and 1H NMR. Using 1 -PEG(10000) as catalyst in the presence of K3PO4 as base in water at 100℃ provided coupling products in excellent yields. Moreo- ver, the above system could be recycled and reused three times.