C07C255/23

A NOVEL PROCESS FOR THE PREPARATION OF TERIFLUNOMIDE

The present invention provides a process for the preparation of Teriflunomide (Formula-I). The present invention describes the synthesis of Teriflunomide without isolating the intermediate Leflunomide. Teriflunomide is prepared from 5-Methyl isoxazole-4-carboxylic acid by converting to its acid chloride and coupling with 4-trifluoromethyl aniline to obtain Leflunomide (which is not isolated) followed by ring opening reaction using aq. Sodium Hydroxide to form Teriflunomide. In other words, the process is telescoped from 5-methylisoxazole-4-carbonyl chloride.

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DISPLAY PACKAGE FOR 2 COMPONENT CYANOACRYLATE COMPOSITIONS

A display package for two component cyanoacrylate compositions. The display package includes a stain-free transparent secondary package that enables visual inspection of a syringe-based primary package containing a bulk product that has volatile constituents such as a common cyanoacrylate adhesive.

DISPLAY PACKAGE FOR 2 COMPONENT CYANOACRYLATE COMPOSITIONS

A display package for two component cyanoacrylate compositions. The display package includes a stain-free transparent secondary package that enables visual inspection of a syringe-based primary package containing a bulk product that has volatile constituents such as a common cyanoacrylate adhesive.

Cross Metathesis Approach to C11-C13 Fatty-Chain Amino Esters From Oleic Acid Derivatives

A concise method of producing nylon 11, 12, or 13 precursors from oleic acid or an ester of oleic acid is described. The method involves cross-metathesis reactions as the key CC bond formation step. Subsequent steps are provided to convert the metathesis product to the corresponding nylon precursors. Also provided are the products of the method.

Cross Metathesis Approach to C11-C13 Fatty-Chain Amino Esters From Oleic Acid Derivatives

A concise method of producing nylon 11, 12, or 13 precursors from oleic acid or an ester of oleic acid is described. The method involves cross-metathesis reactions as the key CC bond formation step. Subsequent steps are provided to convert the metathesis product to the corresponding nylon precursors. Also provided are the products of the method.

Process for the preparation of 2-cyano-3,3-diarylacrylates

The present invention relates to a novel process for preparation of 2-Cyano-3,3-diarylacrylates by the Knoevenagel condensation of Cyanoacetic esters and Arylketones using ammonium compound and acetic acid and without the use of organic solvent.

Process for the preparation of 2-cyano-3,3-diarylacrylates

The present invention relates to a novel process for preparation of 2-Cyano-3,3-diarylacrylates by the Knoevenagel condensation of Cyanoacetic esters and Arylketones using ammonium compound and acetic acid and without the use of organic solvent.

Process for preparing 1,1-disubstituted ethylene monomers

The present invention relates to a process for preparing 1,1-disubstituted ethylene monomers having general formula (I) from a compound of general formula (II) and an active methylene compound of general formula (III) using a catalytic amount of an ammonium or iminium a salt in homogeneous phase or supported on a solid substrate. Said process allows the direct synthesis of the monomers and finds application in the preparation of a wide variety of monomers. The products obtained are reactive monomers of high purity which find application in the field of fast curing adhesives.

Process for preparing 1,1-disubstituted ethylene monomers

The present invention relates to a process for preparing 1,1-disubstituted ethylene monomers having general formula (I) from a compound of general formula (II) and an active methylene compound of general formula (III) using a catalytic amount of an ammonium or iminium a salt in homogeneous phase or supported on a solid substrate. Said process allows the direct synthesis of the monomers and finds application in the preparation of a wide variety of monomers. The products obtained are reactive monomers of high purity which find application in the field of fast curing adhesives.

Isoprene oligomer, polyisoprene, processes for producing these materials, rubber composition, and pneumatic tire

The invention relates to an isoprene oligomer that contains a trans structural moiety and a cis structural moiety, which can be represented by the following formula (1), wherein at least 1 atom or group in the trans structural moiety is replaced by another atom or group. The invention also relates to a polyisoprene, which is biosynthesized using the isoprene oligomer and isopentenyl diphosphate. Further, this invention provides a rubber composition comprising the isoprene oligomer and/or the polyisoprene, and a pneumatic tire, including tire components (e.g., treads and sidewalls) formed from the rubber composition. ##STR00001##
wherein n represents an integer from 1 to 10; m represents an integer from 1 to 30; and Y represents a hydroxy group, a formyl group, a carboxy group, an ester group, a carbonyl group, or a group represented by the following formula (2): ##STR00002##