A two-phase system for the clean and high yield synthesis of furylmethane derivatives over –SO₃H functionalized ionic liquids

Abstract

A new and effective unique two-phase reaction system for the high yield production of tri(furyl)methane from furfural and furan.

An Integrated Production of Diesel Fuel Precursors from Carbohydrates and 2‐Methylfuran over Sn‐Mont Catalyst

“…The multiple functionality of HMF offers sites for multiple C−C bond formation for carbon upgradation process. In the hydroxyalkylation‐alkylation (HAA) process carbonyl (C=O) and hydroxyl (–OH) functionality of HMF was reacted with the three molecules of MeF over acid catalyst . The condensation product formed during this reaction is a unit of C 21 which could provide a diesel range branched alkane on hydrodeoxygenation process.…”

“…In the hydroxyalkylation-alkylation (HAA) process carbonyl (C=O) and hydroxyl (-OH) functionality of HMF was reacted with the three molecules of MeF over acid catalyst. [36] The condensation product formed during this reaction is a unit of C 21 which could provide a diesel range branched alkane on hydrodeoxygenation process. Initially, we identified a suitable catalyst system for the reaction between HMF and MeF by evaluating several catalysts for this reaction at 65 o C without using any solvent ( 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 more acidic than parent montmorillonite; several metal exchanged clay samples were also evaluated.…”

“…Numerous synthetic methods are available on synthesis of bis/tris(furyl)alkanes by condensation of MeF with carbonyl compounds over mineral acids,,, acidic resins,,, functionalized silica and carbon, AuCl 3 , zeolites, Cu(OTf) 2 , I 2 and TFA/ZrO 2 . Recently, we have invented a biphasic reaction system for the clean isolation of tris(furyl)alkanes with high yield using ‐SO 3 H functionalized ionic liquids . Production of bis/tris(furyl)alkanes from pure HMF or furfural could be achieved by simple treatment with MeF in acid.…”

“…[35] Recently, we have invented a biphasic reaction system for the clean isolation of tris(furyl)alkanes with high yield using -SO 3 H functionalized ionic liquids. [36] Production of bis/tris(furyl)alkanes from pure HMF or furfural could be achieved by simple treatment with MeF in acid. Although, large scale production of furfural is practiced still its long time stability is also one of the concerns due to its vulnerability to polymerize.…”

Cascade Synthesis of 5‐(Acetoxymethyl)furfural from Carbohydrates over Sn‐Mont Catalyst

“…The functionalities such as hydroxymethyl and formyl of HMF could be converted into diverse and useful furan derivatives (Scheme ). Other furan derivatives such as 5‐(alkoxymethyl)furfural ( 2 ), condensation product ( 3 ) and mesitylmethylfurfural (4) are potential fuel blenders or precursors. Recently, we have produced condensation product ( 3 ) from AcMF using ‐SO 3 H functionalized ionic liquid .…”