128352-65-8

Upstream product

• 78-94-4 methyl vinyl ketone 
• 513-81-5 2,3-dimethyl-buta-1,3-diene 
• 43025-83-8 diethyl-methyl-(3-oxo-butyl)-ammonium; iodide 
• 131510-65-1 1-Acetyl-2-isopropenyl-2-methylcyclobutane 
• 67223-99-8 1-acetyl-2-methylcyclobutene 
• 565-62-8 3-methylpent-3-en-2-one 
• 106-99-0 buta-1,3-diene 

Downstream Products

• 1266325-14-7 C₁₄H₂₄O₂ 
• 1266325-45-4 S-3-(3,4-dimethylcyclohex-3-enyl)-3-hydroxy-2-oxobutyl O-ethyl carbonodithioate 
• 1266325-15-8 C₁₂H₁₉BrO₂ 
• 102575-34-8 1-((1R,3S,4R)-3,4-Dimethyl-cyclohexyl)-ethanone 
• 102575-34-8 1-((1R,3S,4S)-3,4-Dimethyl-cyclohexyl)-ethanone 
• 102575-34-8 1-((1R,3R,4R)-3,4-Dimethyl-cyclohexyl)-ethanone 
• 102575-34-8 1-((1R,3R,4S)-3,4-Dimethyl-cyclohexyl)-ethanone 

Relevant academic research and scientific papers

Lewis acid catalysis by lanthanide complexes with tris(perfluorooctanesulfonyl)methide ponytails in fluorous recyclable phase

Scandium and ytterbium tris(perfluorooctanesulfonyl)methide complexes are shown to be immobilized in fluorous recyclable phase and extremely efficient Lewis acid catalysts for alcohol acylation, Friedel-Crafts acylation, Diels-Alder reaction, and Mukaiyam

Lewis acid catalysis in supercritical carbon dioxide. Use of scandium tris(heptadecafluorooctanesulfonate) as a Lewis acid catalyst in Diels-Alder and aza Diels-Alder reactions

Diels-Alder reactions of carbonyl dienophiles with dienes and aza Diels-Alder reactions of imines with a diene have been successfully carried out using scandium tris(heptadecafluorooctanesulfonate) (Sc(OSO2C8F17)3) as a Lewis acid catalyst in supercritical carbon dioxide (scCO2). It was revealed that the length of perfluorocarbon chains of the scandium catalyst was an essential factor for the catalytic activity in scCO2.

A Well-Defined Aluminum-Based Lewis Acid as an Effective Catalyst for Diels-Alder Transformations

A catalytically active aluminum-based system for Diels-Alder transformations is reported. The system was generated by mixing a β-diketiminate-stabilized aluminum bistriflate compound with Na[BArCl4] (ArCl=3,5-Cl2C6H3). Solid-state analysis of the catalytic system reveals a unique structure incorporating a two-dimensional coordination polymer. According to the experimental results obtained from several Diels-Alder transformations, the aluminum-based system appears to be a more practical and more robust alternative to the recently reported compounds based on carbon and silicon cations.

Scandium and ytterbium tris(perfiuorobutanesulfonyl)methide complexes: Extremely efficient Lewis acid catalysts

Lanthanide tris(perfluorobutanesulfonyl)methides, scandium and ytterbium complexes in particular, were synthesized and shown to be water-tolerant and extremely efficient Lewis acid catalysts for the Friedel-Crafts acylation, Diels-Alder reaction, and Meer

Difluorotris(pentafluoroethyl)phosphorane - A highly active catalyst for Diels-Alder reaction

Difluorotris(pentafluoroethyl)phosphorane, (C2F5)3PF2, was found to catalyze Diels-Alder reactions of α,β-unsaturated ketones or aldehydes with conjugated dienes or cyclodienes providing the cycloaddition products in high yields. Only a small quantity of this catalyst is required to complete the Diels-Alder reaction. The developed protocol is more convenient than the procedures reported in the literature. Several cyclohexene, naphthalene and norbornene derivatives were obtained in moderate to good yields.

Macromolecular materials in heterogeneous catalysis: An aluminium silasesquioxane gel as active catalyst in Diels-Alder reactions of enones

A highly active, genuinely heterogeneous catalyst for liquid-phase Diels-Alder reactions of enones results from the silanol centred modification of an incompletely condensed silasesquioxane with trimethylaluminium, the resulting catalytic material being a gel that contains aluminium(III) siloxy functions (Al-O-Si) which are incorporated in a well defined, three-dimensional SiO framework.

Synthese organique sous champ microondes: Premier exemple d'activation specifique en phase homogene

The rate of several Diels-Alder reactions under conventional or microwave heating are compared at the same bulk temperature. This afford the first evidence for a specific activating effect of microwaves under homogeneous conditions.

Bis-selenonium Cations as Bidentate Chalcogen Bond Donors in Catalysis

Lewis acids are frequently employed in catalysis but they often suffer from high moisture sensitivity. In many reactions, catalysts are deactivated because of the problem that strong Lewis acids also bond to the products. In this research, hydrolytically stable bidentate Lewis acid catalysts derived from selenonium dicationic centers have been developed. The bis-selenonium catalysts are employed in the activation of imine and carbonyl groups in various transformations with good yields and selectivity. Lewis acidity of the bis-selenonium salts was found to be stronger than that of the monoselenonium systems, attributed to the synergistic effect of the two cationic selenonium centers. In addition, the bis-selenonium catalysts are not inhibited by strong bases or moisture.

3-Methoxybutan-2-one as a sustainable bio-based alternative to chlorinated solvents

Methylation of acetoin with dimethyl carbonate was performed in a sustainable one-step process, with improved process mass intensity (PMI) and atom economy compared to previously published methods. The resulting product, 3-methoxybutan-2-one (MO) was succ

STRONGLY LEWIS ACIDIC METAL-ORGANIC FRAMEWORKS FOR CONTINUOUS FLOW CATALYSIS

Lewis acidic metal-organic framework (MOF) materials comprising triflate-coordinated metal nodes are described. The materials can be used as heterogenous catalysts in a wide range of organic group transformations, including Diels-Alder reactions, epoxide-ring opening reactions, Friedel-Crafts acylation reactions and alkene hydroalkoxylation reactions. The MOFs can also be prepared with metallated organic bridging ligands to provide heterogenous catalysts for tandem reactions and/or prepared as composites with support particles for use in columns of continuous flow reactor systems. Methods of preparing and using the MOF materials and their composites are also described.