Plural Benzene Rings Bonded Directly To The Same Carbon Patents (Class 568/640)
  • Patent number: 4175137
    Abstract: The invention relates to novel etherified cycloalkanols of the formula ##STR1## wherein X.sub.1 represents oxygen, sulphur or methylene, X.sub.2 represents oxygen or sulphur, A represents an unsubstituted or substituted phenyl radical and n is an integer from 1 to 10 inclusive, and processes for the production thereof.These compounds, especially 2-(4-phenoxyphenoxy)-cyclo-pentan-1-ol, effect a lowering of the lipid content in the blood serum. They are also intermediates for the production of insecticidal cyclopropanecarboxylic acid esters.
    Type: Grant
    Filed: July 13, 1978
    Date of Patent: November 20, 1979
    Assignee: Ciba-Geigy Corporation
    Inventors: Saleem Farooq, Friedrich Karrer, Georges Haas
  • Patent number: 4173541
    Abstract: Novel polynuclear hindered phenols having three hindered phenol groups each bonded through a methylene group to a substituted aromatic nucleus and methods of making same are provided which have stabilizing activity in organic substances normally susceptible to oxidative degradation.
    Type: Grant
    Filed: June 5, 1978
    Date of Patent: November 6, 1979
    Assignee: Cincinnati Milacron Chemicals Inc.
    Inventor: Kenneth R. Molt
  • Patent number: 4168218
    Abstract: Benzopinacol compounds can be prepared by an improved process comprising irradiating a diarylketone with UV radiation in a non-polar hydrocarbon solvent mixed with an alcohol. The volume ratio of the non-polar hydrocarbon solvent to alcohol is between 3:1 and 8:1. The benzopinacols are useful, for example, in imaging materials, such as with certain dyes that are reactive with the ketyl radicals that can be released from the benzopinacols upon heating.
    Type: Grant
    Filed: February 13, 1978
    Date of Patent: September 18, 1979
    Assignee: Eastman Kodak Company
    Inventor: Jonas Dedinas
  • Patent number: 4163865
    Abstract: An improvement in a process for the preparation of a pinacol of the formula ##STR1## wherein R.sup.1 and R.sup.2 are identical or different and represent optionally substituted aliphatic, cycloaliphatic, araliphatic or an aromatic hydrocarbon radical by reducing a ketone of the formula ##STR2## wherein R.sup.1 and R.sup.2 have the abovementioned meanings with a base metal, the improvement comprising carrying out the reduction in the presence of an organic halogen compound and in the presence of a phosphoric acid amide, phosphoric acid ester and/or carboxylic acid amide.
    Type: Grant
    Filed: April 3, 1978
    Date of Patent: August 7, 1979
    Assignee: Bayer Aktiengesellschaft
    Inventors: Heinrich Wolfers, Hans Rudolph, Hans-Jurgen Rosenkranz
  • Patent number: 4153719
    Abstract: Beta-diketones substituted by an aryl-aliphatic group in which the aliphatic chain is interrupted by a cyclic group, and useful as anti-viral agents, are prepared by interacting the appropriate aryl-aliphatic halide with an alkali metal salt of a beta-diketone.
    Type: Grant
    Filed: September 6, 1977
    Date of Patent: May 8, 1979
    Assignee: Sterling Drug Inc.
    Inventor: Guy D. Diana