62083-21-0

Upstream product

• 1458-98-6 2-methyl-3-bromo-1-propene 
• 34713-70-7 2-Phenylpropanal 
• 78103-77-2 methyl 4-methyl-2-phenylpent-4-enoate 
• 101-41-7 benzeneacetic acid methyl ester 
• 563-47-3 3-Chloro-2-methylpropene 
• 77-09-8 phenolphthalein 
• 115914-02-8 N-methyl-N-(2-methylallyl)-2-phenyl-1-propenylamine 

Downstream Products

• 1041752-86-6 1-(2,6-diisopropylphenyl)-2,2,4-trimethyl-4-phenyl-3,4-dihydro-2H-pyrrol-1-ylium chloride 

Relevant academic research and scientific papers

GROUP 8 TRANSITION METAL CATALYSTS AND METHOD FOR MAKING SAME AND PROCESS FOR USE OF SAME IN OLEFIN DISPROPORTIONATION REACTIONS

These catalyst compounds are represented by the formula (I and VI): wherein M is a Group 8 metal; X is an anionic ligand; L is a neutral two-electron donor ligand; A is a monotopic or ditopic chelating ligand. The present invention also relates to an easy applicable catalyst synthesis and the application in different olefin metathesis processes, e.g. Reaction Injection Molding (RIM), rotational molding, vacuum infusion, vacuum forming, process for conversion of fatty acids and fatty acid esters or mixtures thereof, in -olefins, dicarboxylic acids or dicarboxylic esters, etc.

Isomerization of olefins triggered by rhodium-catalyzed C-H bond activation: Control of endocyclic β-hydrogen elimination

Five-membered metallacycles are typically reluctant to undergo endocyclic β-hydrogen elimination. The rhodium-catalyzed isomerization of 4-pentenals into 3-pentenals occurs through this elementary step and cleavage of two C-H bonds, as supported by deuterium-labeling studies. The reaction proceeds without decarbonylation, leads to trans olefins exclusively, and tolerates other olefins normally prone to isomerization. Endocyclic β-hydrogen elimination can also be controlled in an enantiodivergent reaction on a racemic mixture.

Sila-rhubafuran and derivatives: Synthesis and olfactory characterization of novel silicon-containing odorants

Sila-rhubafuran (1b), a silicon analogue of the grapefruit odorant rhubafuran (1a), was synthesized and isolated as a 1:1 mixture of two racemic diastereomers. In addition, the structurally related racemic C/Si pairs 2a/2b and 3a/3b were prepared. To get

Catalytic compositions for the metathesis of unsaturated fatty bodies with olefins and metathesis methods using catalytic compositions

Catalytic compositions useful for carrying out the metathesis of unsaturated fatty bodies, in particular unsaturated fatty bodies comprising oleic acid or oleic acid esters, contain a ruthenium-based catalyst which can be isolated and which has the formula (I) below:

PREPARATION OF PRECURSORS OF CARBENES OF CAAC TYPE AND PREPARING SAID CARBENES THEREFROM

Precursors of carbenes of CAAC type (Cyclic)(Alkyl)(Amino)(Carbenes) are prepared and carbenes are produced therefrom; novel synthesis intermediates are provided for preparing the precursors of CAAC-type carbenes.

Palladium(0)-Catalyzed Rearrangement of N-Allylenamines. Synthesis of δ,ε-Unsaturated Imines and γ,δ-Unsaturated Carbonyl Compounds

Palladium-catalyzed rearrangement of N-allylenamines proceeds readily in the presence of a catalytic amount of trifluoroacetic acid to give δ,ε-unsaturated imines.Conveniently, δ,ε-unsaturated imines can be prepared directly by the reaction of allylamines with carbonyl compounds under the same conditions highly efficiently.The reaction involves oxidative addition of Pd(0) species to allylenammonium salts to give ?-allylpalladium complexes, which undergo intramolecular nucleophilic reaction with enamines give imines.The δ,ε-unsaturated imines are versatile synthetic precursors such as γ,δ-unsaturated carbonyl compounds.Synthetic applications are also described.

PALLADIUM(0) CATALYZED 3-AZA-COPE REARRANGEMENT OF N-ALLYLENAMINES

Pd(0) complexes catalyze the 3-Aza-Cope rearrangement of N-allylenamines to the corresponding δ,ε-unsaturated imines or γ,δ-unsaturated carbonyl compounds in the presence of trifluoroacetic acid as co-catalyst.

2,4-Dimethyl-2-phenyl-4-pentenal

2,4-Dimethyl-2-phenyl-4-pentenal possesses a strong rose geranium type odor which is especially valuable in perfumery. Compounds of closely related structure do not possess this quality.