6297-36-5

Upstream product

• 57-57-8 β-Propiolactone 
• 64-17-5 ethanol 
• 996-82-7 sodium diethylmalonate 
• 1444-05-9 diethyl 2,2-bis(2-cyanoethyl)malonate 
• 623-71-2 ethyl 3-chloropropanoate 
• 105-53-3 diethyl malonate 
• 140-88-5 ethyl acrylate 
• 539-74-2 Ethyl 3-bromopropionate 

Downstream Products

• 57899-62-4 triethyl 4-oxocyclohexane-1,1,3-tricarboxylate 
• 92454-02-9 4-(Toluene-4-sulfonyloxy)-cyclohexane-1,1-dicarboxylic acid dimethyl ester 
• 92454-01-8 dimethyl 4-hydroxycyclohexane-1,1-dicarboxylate 
• 41079-58-7 dimethyl cyclohex-3-ene-1,1-dicarboxylate 
• 58230-12-9 cyclohexanone-4,4-dicarboxylic acid 
• 58774-03-1 4-oxo-cyclohexane-1,1-dicarboxylic acid dimethyl ester 
• 55704-60-4 4-oxo-cyclohexane-1,1-dicarboxylic acid diethyl ester 
• 6493-77-2 methyl cyclohex-3-ene-1-carboxylate 
• 6940-58-5 pentane-1,3,5-tricarboxylic acid 

Relevant academic research and scientific papers

POLYVALENT ESTER COMPOUND AND METHOD FOR PRODUCING THE SAME

PROBLEM TO BE SOLVED: To provide a polyvalent ester compound which has high compatibility with an acrylic resin, can improve bending resistance when used in an acrylic resin film, is excellent in handleability, has less bleed-out, is environment-friendly because of nonvolatile or low volatile, and can be used as a plasticizer. SOLUTION: There is provided a polyvalent ester compound being a polyvalent ester compound having an atomic group (A) having at least two ester groups and at least one connection portion and a connection part (B), where the polyvalent ester compound has at least two atomic groups (A), the atomic group (A) is bonded to other atomic groups (A) through the connection part (B), the atomic groups (A) may be the same or different, and the connection part (B) is a polyvalent ester compound being a bivalent or more group having at least one carbon atom. SELECTED DRAWING: None COPYRIGHT: (C)2017,JPOandINPIT

A simple and highly efficient procedure for construction of quaternary carbons centers by tributylphosphine catalyzed bis-Michael addition

The tributylphosphine-catalyzed bis-Michael addition reaction of various kinds of α,β-unsaturated carbonyl compounds with active methylenes is described. This is a convenient and rapid method for generating quaternary carbons centers and useful procedure for the synthesis of branched core and highly substituted trans cyclohexanones. All the reactions were completed in 60 min and afford the corresponding products in excellent yields.

A simple, efficient and green procedure for Michael addition catalyzed by [C4dabco]OH ionic liquid

A dabco-based basic ionic liquid, 1-butyl-4-aza-1-azaniabicyclo[2.2.2] octane hydroxide, has been developed as a catalyst for a convenient and rapid method for the Michael addition of active methylene compounds to α,β-unsaturated carboxylic esters and nitriles. The method is very simple, and the yields are very high. The catalyst can be recycled several times without much loss of activity.

A route to a tetrabenzothiazole from Michael bis-addition compounds

An efficient and practical synthesis of a tetrabenzothiazole has been developed by condensation of Michael bisadducts with 2-aminothiophenol.

Oligo(cyclohexylidene)s and oligo(cyclohexyl) as bridges for photoinduced intramolecular charge separation and recombination

A series of semirigid donor-bridge-acceptor (D-B-A) molecules was synthesized to study the effect of the position and number of nonconjugated olefinic bonds in the bridge on the photoinduced charge-separation and charge-recombination kinetics. The molecules consist of a phenylpiperidine electron donor, an oligo-(cyclohexylidene) or oligo(cyclohexyl) bridge, and a dicyanovinyl acceptor. Partly saturated ter(cyclohexylidene) bridges were used as well. The edge-to-edge donor-acceptor separation of the compounds under study varies between 2.89 and 15.4 A. The replacement of a C-C single bond by an olefinic bond increases the rate of charge separation with a factor of 3.0 ± 0.8 per replaced bond. For all D-B-A compounds the extended fully charge-separated state folds to a compact charge-transfer (CCT) conformer. The rate of charge recombination (CR) of the CCT state increases with solvent polarity for those compounds having an olefinic bond located three σ bonds from the acceptor. Thus, while in cyclohexane the CR rate is equal for all compounds, in benzene the CR rate in compounds with an olefinic bond near the acceptor is 10 times larger than in compounds with a single bond instead. It is believed that a (virtual) charge-transfer state involving the radical cation of the olefinic bond and the radical anion of the acceptor (D-B;+-A-) is responsible for the enhanced CR process.

LACTONE FORMATION USING TMSI

Iodotrimethylsilane facilitates the rapid lactonization of alcohol ester 2 under remarkably mild conditions.