Patents by Inventor Matthew Lee Clarke

Matthew Lee Clarke has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20220119329
    Abstract: The invention provides a method comprising hydrogenating a ketone in the presence of (i) a base, (ii) hydrogen gas and (iii) a catalyst comprising a charged or neutral complex of formula (I): wherein: Mn is a manganese atom or a manganese ion in oxidation state (I) to (VII); R1 and R2 are each independently optionally substituted C4-8monocyclic aryl or C3-7monocyclic heteroaryl moieties; -Fc- denotes a ferrocene (bis(?5-cyclopentadienyl)iron) moiety covalently bonded via adjacent carbon atoms of one of the two cyclopentadienyl moieties, and which may be optionally further substituted, in either cyclopentadienyl ring; —Z— is an alkylene linker of the formula —(CH2)1-6— in which one or more of the hydrogen atoms of the alkylene may be independently substituted; —Nx is an optionally substituted nitrogen-containing heteroaryl moiety, with the proviso that at least one of R1, R2 and —Nx is substituted one or more times with an electron donating group; and L1-L3 constitute one, two or three ligands, wherein,
    Type: Application
    Filed: January 8, 2020
    Publication date: April 21, 2022
    Inventors: Magnus Widegren, Matthew Lee Clarke
  • Publication number: 20210053932
    Abstract: The present invention relates to the field of catalytic hydrogenation and, more particularly, to methods of manganese-catalysed hydrogenation of esters to alcohols. Advantageously, where the esters are chiral, the hydrogenations proceed with high or complete stereochemical integrity.
    Type: Application
    Filed: January 8, 2019
    Publication date: February 25, 2021
    Inventors: Magnus Widegren, Matthew Lee Clarke
  • Patent number: 8686183
    Abstract: The invention provides a method for the hydroxycarbonylation, alkoxycarbonylation, aryloxycarbonylation or thiocarbonylation of an unsaturated molecule. The method includes a hydroxycarbonylation, alkoxycarbonylation, aryloxycarbonylationor thiocarbonylation reaction on the unsaturated molecule in which a complex including a ligand comprising a [n,n?] cyclophane comprising two non-fused monocyclic aromatic rings bridged by two linear and aliphatic linkages, in which each of the non-fused monocyclic aromatic rings is substituted with a phosphorus atom-containing substituent, is used to catalyse the reaction.
    Type: Grant
    Filed: September 10, 2010
    Date of Patent: April 1, 2014
    Assignee: University Court Of The University of St Andrews
    Inventors: Matthew Lee Clarke, Tina Marie Konrad
  • Publication number: 20120178963
    Abstract: The invention provides a method for the hydroxycarbonylation, alkoxycarbonylation, aryloxycarbonylation or thiocarbonylation of an unsaturated molecule. The method includes a hydroxycarbonylation, alkoxycarbonylation, aryloxycarbonylationor thiocarbonylation reaction on the unsaturated molecule in which a complex including a ligand comprising a [n,n?]cyclophane comprising two non-fused monocyclic aromatic rings bridged by two linear and aliphatic linkages, in which each of the non-fused monocyclic aromatic rings is substituted with a phosphorus atom-containing substituent, is used to catalyse the reaction.
    Type: Application
    Filed: September 10, 2010
    Publication date: July 12, 2012
    Inventors: Matthew Lee Clarke, Tina Marie Konrad