A plasticizer composition that includes a) a cellulose ester polymer, and b) a plasticizer, where the plasticizer is compatible with the cellulose ester polymer. The plasticizer is a compound represented by the Formula (I). In Formula (I), R.sub.1 is an alkyl group having from 1 to 4 carbons, inclusive, R.sub.2 is a CH.sub.3— group, a CH.sub.3CH.sub.2— group, or an R.sub.1O— group, and each R.sub.3 is independently an alkyl group having from 1 to 4 carbons, inclusive. Articles that includes the plasticizer composition and methods of preparing the plasticizer composition are provided.

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A plasticizer composition that includes a) a cellulose ester polymer, and b) a plasticizer, where the plasticizer is compatible with the cellulose ester polymer. The plasticizer is a compound represented by the Formula (I). In Formula (I), R.sub.1 is an alkyl group having from 1 to 4 carbons, inclusive, R.sub.2 is a CH.sub.3— group, a CH.sub.3CH.sub.2— group, or an R.sub.1O— group, and each R.sub.3 is independently an alkyl group having from 1 to 4 carbons, inclusive. Articles that includes the plasticizer composition and methods of preparing the plasticizer composition are provided.

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The present invention relates to a process for the preparation of aromatic carbonyl compounds of formula I, which can be obtained through reaction of compounds of formula II with molecular oxygen in the presence of a solvent and a catalyst, which is composed of a cobalt(II) salt and N,N′,N″-trihydroayisocyanuric acid (THICA).

The present invention relates to a process for the preparation of aromatic carbonyl compounds of formula I, which can be obtained through reaction of compounds of formula II with molecular oxygen in the presence of a solvent and a catalyst, which is composed of a cobalt(II) salt and N,N′,N″-trihydroayisocyanuric acid (THICA).

The invention provides methods of preparing 8-hydroxy-2,2,14,14-tetramethylpentadecanedioic acid and methods of making a pharmaceutical material comprising a purified amount of 8-hydroxy-2,2,14,14-tetramethylpentadecanedioic acid. Also provided are compositions and pharmaceutical materials including a purified amount of 8-hydroxy-2,2,14,14-tetramethylpentadecanedioic acid as well as methods of treating various diseases and conditions using the compositions and pharmaceutical materials.

The invention provides methods of preparing 8-hydroxy-2,2,14,14-tetramethylpentadecanedioic acid and methods of making a pharmaceutical material comprising a purified amount of 8-hydroxy-2,2,14,14-tetramethylpentadecanedioic acid. Also provided are compositions and pharmaceutical materials including a purified amount of 8-hydroxy-2,2,14,14-tetramethylpentadecanedioic acid as well as methods of treating various diseases and conditions using the compositions and pharmaceutical materials.

The present disclosure provides improved methods of performing ozonolysis on alkenes comprising non-reductive quenching of ozonide intermediates using Bronsted bases to yield aldehyde, ketone and/or carboxylic acid products.

The present disclosure provides improved methods of performing ozonolysis on alkenes comprising non-reductive quenching of ozonide intermediates using Bronsted bases to yield aldehyde, ketone and/or carboxylic acid products.

A catalyst has a modified silica support and comprises a modifier metal, zirconium and/or hafnium, and a catalytic metal on the modified support. The catalyst has at least a proportion, typically, at least 25%, of modifier metal present in moieties having a total of up to 2 modifier metal atoms. The moieties may be derived from a monomeric and/or dimeric cation source. A method of production: provides a silica support with isolated silanol groups with optional treatment to provide isolated silanol groups (—SiOH) at a level of <2.5 groups per nm.sup.2; contacting the optionally treated silica support with a monomeric zirconium or hafnium modifier metal compound to effect adsorption onto the support; and optionally calcining the modified support for a time and temperature sufficient to convert the monomeric zirconium or hafnium compound adsorbed on the surface to an oxide or hydroxide of zirconium or hafnium in preparation for catalyst impregnation.

The present invention provides a process for preparing a compound of the following general formula (2): wherein R.sup.1 represents a monovalent hydrocarbon group having 1 to 10 carbon atoms, and R.sup.3 represents a hydrogen atom or a methyl group, the process comprising: subjecting a compound of the following general formula (1): wherein R.sup.1 and R.sup.2 represent, independently of each other, a monovalent hydrocarbon group having 1 to 10 carbon atoms, R.sup.3 represents a hydrogen atom or a methyl group, and the wavy bond represents an E-configuration, a Z-configuration, or a mixture thereof, to a Dieckmann condensation in the presence of base to form the compound (2). ##STR00001##