6311-68-8

Upstream product

• 139155-58-1 succinic acid benzyl ester-phenyl ester 
• 108-30-5 succinic acid anhydride 
• 108-95-2 phenol 
• 102-09-0 bis(phenyl) carbonate 
• 110-15-6 succinic acid 

Downstream Products

• 56872-39-0 3-(4-hydroxybenzoyl)propionic acid 
• 108-30-5 succinic acid anhydride 
• 108-95-2 phenol 
• 39560-34-4 3-(2-hydroxybenzoyl)propionic acid 
• 860426-16-0 succinic acid ethyl ester-phenyl ester 
• 4619-20-9 3-(4-methylbenzoyl)propionic acid 

Relevant academic research and scientific papers

RODENTICIDAL NORBORMIDE ANALOGUES

The present invention relates to norbormide analogues having rodenticidal activity; rodenticidal compositions comprising the analogues; uses of the analogues as rodenticides; uses of the analogues in the manufacture of rodenticidal compositions; and methods for controlling rodents using the compositions.

Syntheses of esters from carboxylic acids and diphenyl carbonate-4-dmethylaminopyridine at room temperature

Various aromatic esters have been prepared in high to moderate yields from the corresponding carboxylic acid and diphenyl carbonate-4-dimethylaminopyridine as reagent, in pyridine as solvent, at room temperature, for 4 days.

Montmorillonite clay catalysis. Part 10. K-10 and KSF-catalysed acylation of alcohols, phenols, thiols and amines: Scope and limitation

Montmorillonite K-10 and KSF are highly efficient catalysts for the acetylation of a variety of alcohols, thiols, phenols and amines with acetic anhydride. Amino groups can be selectively acetylated in the presence of hydroxy groups, while the hydroxy groups can be preferentially acetylated in the presence of thiol groups. No selectivity is observed between primary and secondary hydroxy groups in the presence of K-10 and KSF. The catalysts are found not to be efficient for acetylation of tertiary alcohols. This method is simple and convenient with minimum environmental impact. The catalysts are also effective for the acylation of alcohols, thiols, phenols and amines with acetyl chloride and benzoyl chloride. Cyclic anhydrides such as succinic anhydride, maleic anhydride and phthalic anhydride and p-toluene sulfonyl chloride show less reactivity than acetic anhydride and acyl chlorides.

A Convenient Synthesis of Dicarboxylic Monoesters using Isopropenyl Esters: Synthesis of Oxaunomycin Derivatives

Reaction of various types of alcohols with a novel type of acylating agent, the isopropenyl esters 2a-e in the presence of a catalytic amount of conc. sulfuric acid or toluene-p-sulfonic acid followed by selective deprotection of the terminal ester gives the monoesters 5a-i in good yields.

Convenient Synthesis of Alcohol O-Hemiesters using Isopropenyl Esters as Acylating Reagents: Synthesis of Hydrophilic Oxaunomycin 10-O-Hemiester Derivatives

Various types of alcohol O-hemiesters 7a-m were synthesized conveniently in good yield by reaction with isopropenyl esters 4a-f in the presence of a catalytic amount of conc.H2SO4 or toluene-p-sulfonic acid followed by selective deprotection of the terminal esters.This method was applied to a preparation of hydrophilic oxaunomycin 10-O-hemiester derivatives 14a,b and 19a-c.

AMINOLYSIS OF MONOPHENYL SUCCINATES IN APROTIC SOLVENTS. PART I. CYCLIZATION OF MONOPHENYL SUCCINATES TO SUCCINIC ANHYDRIDE

The reaction of benzylamine with monophenyl succinates in aprotic solvents has been shown to proceed simultaneously in two directions.A one-step (bimolecular) pathway involved internal and external catalysis, whereas a two-step pathway involved preliminary cyclization of the monoester to succinic anhydride followed by benzylaminolysis of the latter.In an effort to establish factors contributing to either of the two pathways of benzylaminolysis of the monoesters, a kinetic study of individual reactions has been undertaken.The cyclization of the monophenyl succinateswas studied in dioxane, benzene, N,N-dimethylformamide, pyridine and a pyridine-acetonitrile mixture.The rate of cyclization was proportional to the basicity and the electric permittivity of solvent, electron-accepting capacity of the substituent in the phenyl group of the monoester and inversely proportional to the initial concentration of the monoester.The mechanism of cyclization of the monoesters has been discussed.