C07C19/01

Methods for stabilizing water sensitive clays and migrating fines in subterranean formations

Clay stabilization compositions include one or a plurality of triamino compounds and/or derivatives thereof, fluids containing an effective amount of the clay stabilization compositions and methods for making and using same.

Methods for stabilizing water sensitive clays and migrating fines in subterranean formations

Clay stabilization compositions include one or a plurality of triamino compounds and/or derivatives thereof, fluids containing an effective amount of the clay stabilization compositions and methods for making and using same.

PROCESS FOR PREPARING A 3,7-DIMETHYLALKANE COMPOUND
20230159412 · 2023-05-25 ·

The present invention relates to a process for preparing a 3,7-dimethylalkane compound (3): wherein n is 5 or 6, the process comprising: subjecting a nucleophilic reagent, 2,6-dimethyloctyl compound (1): wherein M.sup.1 represents Li, Mg Z.sup.1, CuZ.sup.1, or CuLiZ.sup.1, wherein Z.sup.1 represents a halogen atom or a 2,6-dimethyloctyl group, to a coupling reaction with an electrophilic alkyl reagent (2): wherein X.sup.1 represents a halogen atom or a p-toluenesulfonate group, and “n” is as defined above, to form the 3,7-dimethylalkane compound (3).

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PROCESS FOR PREPARING A 3,7-DIMETHYLALKANE COMPOUND
20230159412 · 2023-05-25 ·

The present invention relates to a process for preparing a 3,7-dimethylalkane compound (3): wherein n is 5 or 6, the process comprising: subjecting a nucleophilic reagent, 2,6-dimethyloctyl compound (1): wherein M.sup.1 represents Li, Mg Z.sup.1, CuZ.sup.1, or CuLiZ.sup.1, wherein Z.sup.1 represents a halogen atom or a 2,6-dimethyloctyl group, to a coupling reaction with an electrophilic alkyl reagent (2): wherein X.sup.1 represents a halogen atom or a p-toluenesulfonate group, and “n” is as defined above, to form the 3,7-dimethylalkane compound (3).

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Process for producing C.SUB.3 .chlorinated alkane and alkene compounds

A process for producing a reaction mixture comprising a plurality of C.sub.3 chlorinated alkane isomers comprising chlorinating a C.sub.3 chlorinated alkane starting material in a chlorination zone to produce the plurality of C.sub.3 chlorinated alkane isomers, the plurality of C.sub.3 chlorinated alkane isomers each having at least one more chlorine atom than the C.sub.3 chlorinated alkane starting material, wherein the concentration of the C.sub.3 chlorinated alkane starting material is controlled such that conversion of the C.sub.3 chlorinated alkane starting material to the plurality of C.sub.3 chlorinated alkane isomers, represented by the molar ratio of the C.sub.3 chlorinated alkane starting material:C.sub.3 chlorinated alkane isomers in the reaction mixture present in the chlorination zone, does not exceed about 40:60.

Process for producing C.SUB.3 .chlorinated alkane and alkene compounds

A process for producing a reaction mixture comprising a plurality of C.sub.3 chlorinated alkane isomers comprising chlorinating a C.sub.3 chlorinated alkane starting material in a chlorination zone to produce the plurality of C.sub.3 chlorinated alkane isomers, the plurality of C.sub.3 chlorinated alkane isomers each having at least one more chlorine atom than the C.sub.3 chlorinated alkane starting material, wherein the concentration of the C.sub.3 chlorinated alkane starting material is controlled such that conversion of the C.sub.3 chlorinated alkane starting material to the plurality of C.sub.3 chlorinated alkane isomers, represented by the molar ratio of the C.sub.3 chlorinated alkane starting material:C.sub.3 chlorinated alkane isomers in the reaction mixture present in the chlorination zone, does not exceed about 40:60.

Process for producing C.SUB.3 .chlorinated alkane and alkene compounds

A process for producing a reaction mixture comprising a plurality of C.sub.3 chlorinated alkane isomers comprising chlorinating a C.sub.3 chlorinated alkane starting material in a chlorination zone to produce the plurality of C.sub.3 chlorinated alkane isomers, the plurality of C.sub.3 chlorinated alkane isomers each having at least one more chlorine atom than the C.sub.3 chlorinated alkane starting material, wherein the concentration of the C.sub.3 chlorinated alkane starting material is controlled such that conversion of the C.sub.3 chlorinated alkane starting material to the plurality of C.sub.3 chlorinated alkane isomers, represented by the molar ratio of the C.sub.3 chlorinated alkane starting material:C.sub.3 chlorinated alkane isomers in the reaction mixture present in the chlorination zone, does not exceed about 40:60.

Process for preparing a 3,7-dimethylalkane compound

The present invention relates to a process for preparing a 3,7-dimethylalkane compound (3): wherein n is 5 or 6, the process comprising: subjecting a nucleophilic reagent, 2,6-dimethyloctyl compound (1): wherein M.sup.1 represents Li, Mg Z.sup.1, CuZ.sup.1, or CuLiZ.sup.1, wherein Z.sup.1 represents a halogen atom or a 2,6-dimethyloctyl group, to a coupling reaction with an electrophilic alkyl reagent (2): wherein X.sup.1 represents a halogen atom or a p-toluenesulfonate group, and “n” is as defined above, to form the 3,7-dimethylalkane compound (3). ##STR00001##

Process for preparing a 3,7-dimethylalkane compound

The present invention relates to a process for preparing a 3,7-dimethylalkane compound (3): wherein n is 5 or 6, the process comprising: subjecting a nucleophilic reagent, 2,6-dimethyloctyl compound (1): wherein M.sup.1 represents Li, Mg Z.sup.1, CuZ.sup.1, or CuLiZ.sup.1, wherein Z.sup.1 represents a halogen atom or a 2,6-dimethyloctyl group, to a coupling reaction with an electrophilic alkyl reagent (2): wherein X.sup.1 represents a halogen atom or a p-toluenesulfonate group, and “n” is as defined above, to form the 3,7-dimethylalkane compound (3). ##STR00001##

Processes for producing very high purity 1,1,1,2,3-pentachloropropane

Disclosed is a process for preparing a highly pure 1,1,1,2,3-pentachloropropane product, comprising 1-a) providing a reaction mixture comprising ethylene, carbon tetrachloride and a catalyst in a principal alkylation zone to produce 1,1,1,3-tetrachloropropane in the reaction mixture, and 1-btreating the reaction mixture obtained in step 1-a) to obtain a 1,1,1,3-tetrachloropropane feedstock; 2-a) contacting the 1,1,1,3-tetrachloropropane feedstock with a catalyst in a dehydrochlorination zone to produce a reaction mixture comprising 1,1,1,3-tetrachloropropane and 1,1,3-trichloropropene, and 2-b) treating the reaction mixture obtained in step 2-a) to obtain a 1,1,3-trichloropropene feedstock; 3-a) contacting the 1,1,3-trichloropropene feedstock with chlorine in a reaction zone to produce a reaction mixture containing 1,1,1,2,3-pentachloropropane and 1,1,3-trichloropropene, the reaction zone being different from the dehydrochlorination zone, and 3-b) treating the reaction mixture obtained in step 3-a) to obtain the highly pure 1,1,1,2,3-pentachloropropane product.