Patents by Inventor Jonathan LEHMANN

Jonathan LEHMANN 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).

  • Stereoretentive cross-coupling of boronic acids
    Patent number: 10370393
    Abstract: The present disclosure provides tri-orthoalkylphenyl phosphine catalysts of formula I wherein A is CH2, C?O, or NRA; R1 is aryl, heteroaryl, isopropyl, tert-butyl, cycloalkyl, or heterocycloalkyl, wherein aryl, heteroaryl, cycloalkyl and heterocycloalkyl are optionally substituted; R2 is H, (C1-C8)alkyl, (C1-C8)alkoxy, N(RA)2, or an electron withdrawing group; and each RA is independently H or (C1-C8)alkyl; that are tuned electrically and sterically.
    Type: Grant
    Filed: April 23, 2018
    Date of Patent: August 6, 2019
    Assignee: The Board of Trustees of the University of Illinois
    Inventors: Martin D. Burke, Ian Crouch, Jonathan Lehmann, Andrea Palazzolo, Claire Simons
  • STEREORETENTIVE CROSS-COUPLING OF BORONIC ACIDS
    Publication number: 20180305381
    Abstract: The present disclosure provides tri-orthoalkylphenyl phosphine catalysts that are tuned electrically and sterically. Method of using the catalyst for cross-coupling of unactivated secondary boronic acids with near-perfect levels of site- and stereoretention are also provided.
    Type: Application
    Filed: April 23, 2018
    Publication date: October 25, 2018
    Applicant: The Board of Trustees of the University of Illinois
    Inventors: Martin D. BURKE, Ian CROUCH, Jonathan LEHMANN, Andrea PALAZZOLO, Claire SIMONS