Polymer‐bound schiff‐base complex catalyst for effective oxidation of olefins with molecular oxygen
Polymer‐bound schiff‐base complex catalyst for effective oxidation of olefins with molecular oxygen
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DOI：
10.1002/(sici)1097-4628(20000228)75:9
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发表时间：
2000-02
影响因子：
3
通讯作者：
Rongmin Wang;Cheng-Jun Hao;Yufeng He;C. Xia;Jian-Ren Wang;Yun-Pu Wang
中科院分区：
文献类型：
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作者：
Rongmin Wang;Cheng-Jun Hao;Yufeng He;C. Xia;Jian-Ren Wang;Yun-Pu Wang
以聚苯乙烯结合的水杨醛和苯丙氨酸为原料，制备了聚合物结合的希夫碱配体（PS-SalPhe），并合成了配合物PS-SalPhe - M （M = Co, Mn）。采用红外光谱、小面积x射线光电子能谱和ICP-AES对聚合物配体及其配合物进行了表征。在配合物的存在下，环己烯可以在没有还原剂的情况下被分子氧有效地氧化。该反应的主要产物是2-环己烯-1-醇（-OH）、2-环己烯-1-酮（CO）和2-环己烯-1-氢过氧化物（-OOH），不同于环己烯的典型氧化反应。讨论了环己烯氧化的机理。长链线性脂肪族烯烃，如1-辛烯、1-癸烯、1-十二烯和1-十四烯，可由ps - salph - M （M = Mn, Co）催化的分子氧直接氧化生成1,2-环氧烷烃。©2000 John Wiley & Sons, Inc应用化学学报，32 (2):393 - 398
Polymer-bound Schiff-base ligand (PS–SalPhe) was prepared from polystyrene-bound salicylaldehyde and phenylalanine, and its complex (PS–SalPhe–M) (M = Co, Mn) was also synthesized. The polymer ligand and its complex were characterized by infrared spectra, small area X-ray photoelectron spectroscopy, and ICP–AES. In the presence of the complex, cyclohexene can be effectively oxidized by molecular oxygen without a reductant. The major products of the reaction are 2-cyclohexen-1-ol (—OH), 2-cyclohexen-1-one (CO), and 2-cyclohexen-1-hydroperoxide (—OOH ), which is different from the typical oxidation of cyclohexene. The mechanism of cyclohexene oxidation is also discussed. Long-chain linear aliphatic olefins, such as 1-octene, 1-decene, 1-dodecene, and 1-tetradecene, can be directly oxidized by molecular oxygen catalyzed by PS–SalPhe–M (M = Mn, Co), which yields the 1,2-epoxy alkane. © 2000 John Wiley & Sons, Inc. J Appl Polym Sci 75: 1138–1143, 2000