2,5-Dimethylfuran synthesis
- Product Name:2,5-Dimethylfuran
- CAS Number:625-86-5
- Molecular formula:C6H8O
- Molecular Weight:96.13
Currently, DMF is mainly obtained by hydrogenation/hydrolysis of 5-hydroxymethylfurfural (HMF) catalyzed by metal catalysts, most of which include noble metals such as palladium and ruthenium, and in recent years there have been a number of reports on
110-13-4
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625-86-5
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Yield:625-86-5 98%
Reaction Conditions:
with MCM-36_M56 zeolite at 349.84; under 760.051 Torr; for 0.5 h;
Steps:
2.4.1. Cyclization and dehydration of 2,5-hexanedione (2,5-HDN)
The catalysts were tested for 2,5-hexanedione (2,5-HDN) dehydrationand cyclization as the test reactions. A tubular, down-flow reactor( 8 mm; length l80 mm) was used for the 2,5-HDN dehydration and cyclization reaction that was carried out at atmospheric pressure, using nitrogen as the carrier gas. The catalyst powder was pressed, crushed and sieved to the fraction of 0.5<<1.0 mm. A total of 0.05 g of this fraction was put into the reactor. The catalyst was first activated for 2 h at 623 K (heating rate 15 K min-1) under nitrogen flow(40 cm3 min-1). Subsequently, a 0.5 cm3 of 2,5-HDN (Fluka, GC grade)was passed continuously through the catalyst at 623 K. The substrate was delivered with a pump system (KD Scientific) and vaporized before being passed through the catalyst with the flow of nitrogen carrier gas(40 cm3 min-1). The reaction products were collected for 30 min downstream of the reactor in a cold trap (liquid nitrogen and 2-propanol)and analyzed by gas chromatography (SRI 310 C, MXT-1 column30 m, temperature of column 373 K) with a TCD detector. Helium was applied as a carrier gas.
References:
Wojtaszek-Gurdak, Anna;Zielinska, Martyna;Ziolek, Maria [Catalysis Today,2019,vol. 325,p. 89 - 97]
1883-75-6
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625-86-5
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1623-88-7
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625-86-5
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620-02-0
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625-86-5
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5076-10-8
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625-86-5
209 suppliers
$20.00/25mL