Fine Chemical Key Laboratory of Jiangxi Province

Nanchang, China

Fine Chemical Key Laboratory of Jiangxi Province

Nanchang, China
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Xu Z.,Fine Chemical Key Laboratory of Jiangxi Province | Yan N.,Fine Chemical Key Laboratory of Jiangxi Province | Zhou P.,Fine Chemical Key Laboratory of Jiangxi Province | Liao W.,Fine Chemical Key Laboratory of Jiangxi Province
Petroleum Processing and Petrochemicals | Year: 2010

Cyclopentanol was synthesized from cyclopentene and water through hydration reaction using HNb3O8 · H2O/SiO2 as main catalyst and tris(dioxa-3, 6-heptyl)amine( TDA-1)as cocatalyst. The effects of raw materials ratio, reaction temperature, reaction time and catalyst dosage on the yield of cyclopentanol were investigated and optimum reaction conditions were obtained. Under the optimum conditions of a cyclopentene amount of 1.0 mol, a molar ratio of cyclopentene to water of 0.25, a reaction temperature of 120 °C, a reaction time of 4.0 h, a main catalyst dosage of 4.0 g and a cocatalyst dosage of 0.8 g, the yield of cyclopentanol reached 68.6%.


Xu W.-H.,Fine Chemical Key Laboratory of Jiangxi Province | Xu Z.-H.,Fine Chemical Key Laboratory of Jiangxi Province | Zhou P.,Fine Chemical Key Laboratory of Jiangxi Province
Xiandai Huagong/Modern Chemical Industry | Year: 2011

2, 3, 4-tri-O-acety L-β-O-(9-fluorenyl)-L-arabinopyranose(I) is synthsized from the self-made 1-Br-2, 3, 4-tri-O-acety L-L-arabinopyranose and 9-fluorenol with the silver carbonate catalyst, through the Koenigs-Knorr method. Then the compound(I) is treated by anhydrous potassium carbonate to obtain the title compound(II). Their structures are confirmed by means of NMR and elemental analysis.

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