The present disclosure provides novel methods of making aluminum complexes with utility for promoting epoxide carbonylation reactions. Methods include reacting neutral metal carbonyl compounds with alkylaluminum complexes.

The present invention provides novel metal complexes, methods of making, and methods of using the same.

This invention relates to molecular catalysts and chemical reactions utilizing the same, and particularly to catalysts and catalytic methods for reduction of molecular nitrogen. The molecular catalytic platform provided herein is capable of the facile reduction of molecular nitrogen under useful conditions such as room temperature or less and atmospheric pressure or less.

Methods of isotopic labeling are described herein. For example, a method of isotopically labeling an organic compound, in some embodiments, comprises providing a reaction mixture including the organic compound, an iron complex or a cobalt complex and a source of deuterium or tritium. The organic compound is labeled with deuterium or tritium in the presence of the iron complex or cobalt complex or derivative of the iron complex or cobalt complex.

The purification method of an aldehyde compound of the present invention includes a step of neutralizing a reaction solution containing an aldehyde compound by adding water and a base compound to the reaction solution, and a step of distilling the neutralized reaction solution, in which the reaction solution is obtained by reacting a compound represented by the following Formula (a1) or (a2) with hydrogen and carbon monoxide in the presence of a metal compound of groups 8 to 10 and a phosphorus compound, the phosphorus compound is represented by Formula (R.sup.1O).sub.3P, and the base compound is at least one kind selected from among carbonate and hydrogen carbonate of metals of group I on the periodic table and carbonate and hydrogen carbonate of metals of group II on the periodic table. ##STR00001##

A hydrosilylation reaction catalyst prepared from: a catalyst precursor comprising a transition metal compound, excluding platinum, belonging to group 8-10 of the periodic table, e.g., iron acetate, cobalt acetate, nickel acetate, etc.; and a ligand comprising a carbine compound such as 1,3-dimesitylimidazol-2-ylidene, etc. The hydrosilylation reaction catalyst has excellent handling and storage properties. As a result of using this catalyst, a hydrosilylation reaction can be promoted under gentle conditions.

A catalyst system includes a transition metal salt containing a halo group, an acetate group, or a combination thereof, and an organic phosphine ligand. The molar ratio of the organic phosphine ligand to the transition metal salt is greater than 0 and less than or equal to 50.

A method for forming a metal-organic framework comprising a step of providing a substrate; a single step of forming a single layer of metal oxide formed on the substrate said layer of metal oxide being transformed in whole or in part into metal-organic framework by successive implementation of a plurality of reaction cycles; each reaction cycle of the plurality of reaction cycles comprising: a treatment step with at least one ligand; a treatment step with at least one additive; the reaction cycles being implemented at least twice so as to form the metal-organic framework on the substrate.

The present invention describes an electrochemical system (1) to electrochemically reduce carbon monoxide (CO) into liquid methanol and gaseous H.sub.2, comprising an electrochemical cell with an anodic compartment with an anode (2) with a current collector (2A), at least a catalyst to electrochemically oxidize H.sub.2O, and a cathodic compartment with a cathodic electrolyte solution comprising the solvent (3), and a cathodic supporting electrolyte, the solvent (3) being water at basic pH of between 10.5 and 13.5, the reagent CO; a cathode (4) which comprises, on a current collector (4A) which is electrochemically inert, at least a cobalt molecular catalyst (4B) to electrochemically reduce CO into liquid methanol and the gas H.sub.2, a power supply (5) providing the energy necessary to trigger the electrochemical reactions involving the reagent.

Compounds can be used as catalysts, particularly in ring-opening polymerization reactions, including ring-opening co-polymerization (ROCOP) reactions, or in isocyanate trimerization reactions. The compounds have the formula L-M-X.sub.n, where L is a pyridyl-bis(iminophenolate) ligand, M is a metal ion, X is a co-ligand to balance the charge of the compound, and n is an integer from 0 to 7. The compounds can be prepared by base condensation of a pyridyl-diamine compound with an aldehyde or ketone.