Embodiments of the present disclosure provide for biaryl ligands (also referred to herein as biaryl compound), biaryl complexes, methods of making biaryl compounds, methods of making single enantiomers of these biaryl compounds, methods of use (e.g., catalysis), and the like.

Embodiments of the present disclosure provide for biaryl ligands (also referred to herein as biaryl compound), biaryl complexes, methods of making biaryl compounds, methods of making single enantiomers of these biaryl compounds, methods of use (e.g., catalysis), and the like.

The present invention provides a method of producing an ethanolamine, with a low production ratio of a dialkanolamine (for example, less than 30% by weight). A process for producing an alkanolamine of the present invention includes reacting an alkylene oxide with ammonia to obtain a reaction product containing a monoalkanolamine, a dialkanolamine, and a trialkanolamine; separating the dialkanolamine from the reaction product; and recycling at least a portion of the dialkanolamine for the reaction of an alkylene oxide with ammonia, wherein in the recycling step, the dialkanolamine is supplied in a molar ratio of the alkylene oxide (moles) to a total amount (moles) of ammonia and the dialkanolamine of 0.08 or more and less than 0.26.

The present invention provides a method of producing an ethanolamine, with a low production ratio of a dialkanolamine (for example, less than 30% by weight). A process for producing an alkanolamine of the present invention includes reacting an alkylene oxide with ammonia to obtain a reaction product containing a monoalkanolamine, a dialkanolamine, and a trialkanolamine; separating the dialkanolamine from the reaction product; and recycling at least a portion of the dialkanolamine for the reaction of an alkylene oxide with ammonia, wherein in the recycling step, the dialkanolamine is supplied in a molar ratio of the alkylene oxide (moles) to a total amount (moles) of ammonia and the dialkanolamine of 0.08 or more and less than 0.26.

Synthetic methods for the preparation of ligands and metal-ligand complexes are disclosed.

Synthetic methods for the preparation of ligands and metal-ligand complexes are disclosed.

The present invention relates to a novel method for preparing (S)N.sup.1-(2-aminoethyl)-3-(4-alkoxyphenyl)propane-1,2-diamine trihydrochloride.

The present invention relates to a novel method for preparing (S)N.sup.1-(2-aminoethyl)-3-(4-alkoxyphenyl)propane-1,2-diamine trihydrochloride.

Synthetic methods for the preparation of ligands and metal-ligand complexes are disclosed.

Synthetic methods for the preparation of ligands and metal-ligand complexes are disclosed.