以过氧化氢为氧源,磷钨杂多酸季铵盐为催化剂,研究了α,β-不饱和酮的环氧化反应,考察了溶剂、温度、催化剂用量、反应时间以及底物浓度等因素对环氧化反应的影响. 结果表明,在适宜反应条件下,过氧化氢/磷钨杂多酸季铵盐催化体系可以催化α,β-不饱和酮环氧化,得到相应的环氧化合物,并能取得较好的结果. 其中, 4-甲基-3-戊烯-2-酮的环氧化合物的产率达到了87%.
参考文献
[1] | Julian P L;Meyer E W;Ryden I .[J].Journal of the American Chemical Society,1950,72(01):367. |
[2] | Wynberg H;Marsman B .[J].Journal of Organic Chemistry,1980,45(01):158. |
[3] | Yadav V K;Kapoor K K .[J].Tetrahedron Letters,1994,35(50):9481. |
[4] | Sasidharan M;Wu P;Tatsumi T .[J].Journal of Catalysis,2002,205(02):332. |
[5] | Gao Q;Ding Y;Liu HT;Suo JS .Epoxidation of electron-deficient alpha,beta-unsaturated carbonyl compounds over Keggin heteropoly compounds with aqueous H2O2[J].Journal of Chemical Research. Synopses,2005(11):716-718. |
[6] | Kamata K.;Yonehara K.;Sumida Y.;Yamaguchi K.;Hikichi S.;Mizuno N. .Efficient epoxidation of olefins with >= 99% selectivity and use of hydrogen peroxide[J].Science,2003(5621):964-966. |
[7] | Lambert A;Plucinski P;Kozhevnikov I V.[J].Chemical Communications,2003(06):714. |
[8] | Mizuno N;Yamaguchi K .Polyoxometalate catalysts: Toward the development of green H2O2-based epoxidation systems[J].Chemical record,2006(1):12-22. |
[9] | Xi Z W;Zhou N;Sun Y;Li K L .[J].Science,2001,292(5519):1139. |
[10] | Zhang S J;Gao S;Xi Z W;Xu J .[J].Catalysis Communications,2007,8(03):531. |
[11] | Li J;Gao S;Li M;Zhang R H Xi Z W .[J].Journal of Molecular Catalysis A:Chemical,2004,218(02):247. |
[12] | 金国杰,杨红云,陈皓,高焕新,谢在库.反应控制相转移催化剂催化丙烯环氧化反应的影响因素[J].催化学报,2005(11):1005-1010. |
[13] | 杨小格,张生军,李萌,奚祖威,高爽.合成条件对磷钨杂多酸季铵盐催化剂性能的影响[J].催化学报,2006(01):50-54. |
[14] | Yang X G;Gao Sh;Xi Z W .[J].Organic Process Research & Development,2005,9(03):294. |
[15] | 李坤兰,周宁,奚祖威.溶剂和杂多酸盐中季铵阳离子对环己烯环氧化反应控制相转移催化的影响[J].催化学报,2002(02):125-126. |
[16] | Li J;Xi Z W;Gao Sh .[J].Research on Chemical Intermediates,2007,33(06):523. |
[17] | Sun Y.;Cao GY.;Xi ZW. .Epoxidation of olefins catalyzed by [pi-C5H5NC16H33](3) [PW4O16] with molecular oxygen and a recyclable reductant 2-ethylanthrahydroquinone[J].Journal of molecular catalysis, A. Chemical,2001(2):219-224. |
[18] | Venturello C;D'Aloisio R .[J].Journal of Organic Chemistry,1988,53(07):1553. |
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