Well-defined epoxide-containing styrenic polymers and their functionalization with alcohols
作者:David C. McLeod、Nicolay V. Tsarevsky
DOI:10.1002/pola.27952
日期:2016.4.15
phenyloxirane and glycidyl butyrate as low molecular weight model compounds, it was determined that the acid‐catalyzedring‐opening of aryl‐substituted epoxides by alcohols to form β‐hydroxy ether products was significantly more efficient than that of alkyl‐substituted epoxides. An aryl epoxide‐type styrenic monomer, 4‐vinylphenyloxirane (4VPO), was synthesized in high yield using an improved procedure and then
Mesoporous carbon as an efficient catalyst for alcoholysis and aminolysis of epoxides
作者:Inês Matos、Paulo Duarte Neves、José Eduardo Castanheiro、Elena Perez-Mayoral、Rosa Martin-Aranda、Carlos Duran-Valle、Joaquim Vital、Ana M. Botelho do Rego、Isabel M. Fonseca
DOI:10.1016/j.apcata.2012.06.036
日期:2012.10
The ring opening reaction of epoxides by alcohols and amines using mesoporous activated carbon as efficient and environmentally friendly heterogeneous catalyst is reported. Carbon xerogels were synthesized by polymerization of resorcinol and formaldehyde. The surface of the activated carbon was oxidized in liquid phase with HNO3 and then functionalized with H2SO4. Chemical and textural characterization
据报道,使用介孔活性炭作为高效和环境友好的非均相催化剂,醇类和胺类环氧化物的开环反应。碳干凝胶是通过间苯二酚和甲醛的聚合而合成的。活性炭的表面在液相中被HNO 3氧化,然后被H 2 SO 4官能化。 通过元素分析,pH PZC,TPD,BET和XPS进行化学和结构表征表明,液相氧化可有效地在碳表面引入强酸基团。如所预期的,用H 2 SO 4官能化导致更多的酸官能团。在醇解和环氧化物的氨解中测试了活性炭,均获得了超过95%的优异转化和选择性结果。
Taeger,E. et al., Journal fur praktische Chemie (Leipzig 1954), 1965, vol. 28, p. 13 - 20