Tetrahydrofuran

About: Tetrahydrofuran is a research topic. Over the lifetime, 11778 publications have been published within this topic receiving 158241 citations. The topic is also known as: diethylene oxide & 1,4-epoxybutane.

Cascade Engineered Synthesis of γ-Valerolactone, 1,4-Pentanediol, and 2-Methyltetrahydrofuran from Levulinic Acid Using Pd–Cu/ZrO2Catalyst in Water as Solvent

Abstract: Synthesis of chemicals derived from biomass using heterogeneous catalysts with water as a solvent elegantly fits into the realm of sustainable chemistry. In this work, a novel heterogeneous palladium copper bimetallic catalyst supported on zirconia was synthesized and fully characterized. This catalyst was used in one-pot synthesis of γ-valerolactone, 1,4-pentanediol, and 2-methyl tetrahydrofuran from levulinic acid and hydrogen using water as a solvent. The catalyst consists of 1% palladium and 29% copper supported on zirconia and is characterized per se and after reuse by using elemental analysis, FTIR, NH3-TPD, XRD, and BET surface area, XPS, SEM, and TEM analysis. This is the first ever report on the direct synthesis of 1,4-pentanediol and 2-methyl tetrahydrofuran using water as a solvent. Reaction mechanism and kinetic modeling was done to validate the experimental results. The results reported are thus a combination of synthesis of a novel catalyst with its full characterization, its application in ...

Amino or styryl compound and organic electroluminescent element using the same

Abstract: PROBLEM TO BE SOLVED: To obtain a new amino or styryl compound which gives organic electroluminescent elements having excellent heat resistance and long lives. SOLUTION: A compound of formula I (Ar1 is a 6-30C divalent or trivalent aromatic group; X1 and X2 are each styryl, a styrylaryl, a diarylamino or a diarylaminoaryl; (n) is 0 or 1; D1 is a 16-60C monovalent group having four or more carbon rings, when either of X1 or X2 is styryl or styrylaryl, or a 20-60C monovalent aromatic group having five or more carbon rings, when X1 and X2 are each the other). For example, a compound of formula II. The compound of formula I is obtained by preparing a Grignard reagent from a compound of formula III and then reacting the Grignard reagent with a compound of formula IV and Ni(dppp)Cl2 in anhydrous tetrahydrofuran.