Provided are a water-soluble triarylphosphine for a palladium catalyst, which has high selectivity in a telomerization reaction and is easily recovered with efficiency, an ammonium salt thereof, and a method for efficiently producing the same. Specifically, provided are bis(6-methyl-3-sulphophenyl)(2-methylphenyl)phosphine; a bis(6-methyl-3-sulphonatophenyl)(2-methylphenyl)phosphine diammonium salt obtained by reacting the phosphine with a tertiary amine having a total of 3 to 27 carbon atoms in groups bonded to one nitrogen atom; and a method for producing the same.

Provided are a water-soluble triarylphosphine for a palladium catalyst, which has high selectivity in a telomerization reaction and is easily recovered with efficiency, an ammonium salt thereof, and a method for efficiently producing the same. Specifically, provided are bis(6-methyl-3-sulphophenyl)(2-methylphenyl)phosphine; a bis(6-methyl-3-sulphonatophenyl)(2-methylphenyl)phosphine diammonium salt obtained by reacting the phosphine with a tertiary amine having a total of 3 to 27 carbon atoms in groups bonded to one nitrogen atom; and a method for producing the same.

Methods of synthesizing transition metal dichalcogenide nanoparticles include forming a metal-amine complex, combining the metal-amine complex with a chalcogen source in at least one solvent to form a solution, heating the solution to a first temperature for a first period of time, and heating the solution to a second temperature that is higher than the first temperature for a second period of time.

Methods of synthesizing transition metal dichalcogenide nanoparticles include forming a metal-amine complex, combining the metal-amine complex with a chalcogen source in at least one solvent to form a solution, heating the solution to a first temperature for a first period of time, and heating the solution to a second temperature that is higher than the first temperature for a second period of time.

The invention provides branched trialkylamine oxides with improved properties. The trialkylamine oxides of the invention produced from branched trialkylamines, in one embodiment, can be made using certain branched C10-12 enals and aldehydes. The invention also provides an trialkylamine oxide having the formula: ##STR00001##
wherein R5, R6 and R7 are independently at least one of C3H7, C2H5, CH3, or H, or mixtures thereof; and wherein R5 and R6 are not H at the same time. In one embodiment, the trialkylamine oxides of the invention can be useful in making various products, for example, as surfactants.

The invention provides branched trialkylamine oxides with improved properties. The trialkylamine oxides of the invention produced from branched trialkylamines, in one embodiment, can be made using certain branched C10-12 enals and aldehydes. The invention also provides an trialkylamine oxide having the formula: ##STR00001##
wherein R5, R6 and R7 are independently at least one of C3H7, C2H5, CH3, or H, or mixtures thereof; and wherein R5 and R6 are not H at the same time. In one embodiment, the trialkylamine oxides of the invention can be useful in making various products, for example, as surfactants.

A method of synthesis of two-dimensional (2D) nanoparticles comprises combining a first nanoparticle precursor and a second nanoparticle precursor in one or more solvents to form a solution, followed by heating the solution to a first temperature for a first time period, then subsequently heating the solution to a second temperature for a second time period, wherein the second temperature is higher than the first temperature, to effect the conversion of the nanoparticle precursors into 2D nanoparticles. In one embodiment, the first nanoparticle precursor is a metal-amine complex and the second nanoparticle precursor is a slow-releasing chalcogen source.

A method of synthesis of two-dimensional (2D) nanoparticles comprises combining a first nanoparticle precursor and a second nanoparticle precursor in one or more solvents to form a solution, followed by heating the solution to a first temperature for a first time period, then subsequently heating the solution to a second temperature for a second time period, wherein the second temperature is higher than the first temperature, to effect the conversion of the nanoparticle precursors into 2D nanoparticles. In one embodiment, the first nanoparticle precursor is a metal-amine complex and the second nanoparticle precursor is a slow-releasing chalcogen source.

Methods of synthesizing compounds using CO.sub.2 as a directing group for CH functionalization, and compounds made thereby, are described.

Methods of synthesizing compounds using CO.sub.2 as a directing group for CH functionalization, and compounds made thereby, are described.