35435-68-8Relevant articles and documents
METHOD FOR PRODUCING 1,3-BUTADIENE FROM 1,4-BUTANEDIOL
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Paragraph 0083-0087, (2018/03/01)
A method for producing 1,3-butadiene from a 1,4-butanediol feedstock: One step for esterification of 1,4-butanediol,One step for pyrolysis of 1,4-butanediol diester, producing butadiene.
Tandem hydroformylation/hydrogenation of alkenes to normal alcohols using Rh/Ru dual catalyst or Ru single component catalyst
Takahashi, Kohei,Yamashita, Makoto,Nozaki, Kyoko
supporting information, p. 18746 - 18757 (2013/01/15)
The catalyst system for tandem hydroformylation/hydrogenation of terminal alkenes to the corresponding homologated normal alcohol was developed. The reaction mechanism for the Rh/Ru dual catalyst was investigated by real-time IR monitoring experiments and 31P NMR spectroscopy, which proved the mutual orthogonality of Rh-catalyzed hydroformylation and Ru-catalyzed hydrogenation. Detailed investigation about Ru-catalyzed hydrogenation of undecanal under H2/CO pressure clarified different kinetics from the hydrogenation under H2 and gave a clue to design more active hydrogenation catalysts under H2/CO atmosphere. The solely Ru-catalyzed normal selective hydroformylation/hydrogenation is also reported.
Effects of acidity and immiscibility of lactam-based Bronsted-acidic ionic liquids on their catalytic performance for esterification
Zhou, Hancheng,Yang, Jing,Ye, Linmin,Lin, Haiqiang,Yuan, Youzhu
experimental part, p. 661 - 665 (2010/08/22)
Several lactam-based Bronsted-acidic ionic liquids with different acidities were synthesized and applied to the esterification of carboxylic acids with alcohols. High conversion and perfect selectivity were obtained under mild conditions. Among the ionic liquids investigated, those having a methyl sulfonate anion (which has weaker acidity than those with a tetrafluoroborate anion) afforded the highest activity for esterification. The results indicated that the acidity and immiscibility of Bronsted-acidic ionic liquids has a synergistic effect on their esterification performance. Furthermore, after removal of water under vacuum, such ionic liquids could be reused several times without substantial loss of activity.