Two Phenols Bonded Directly To Two Different Carbons Of An Acyclic Chain Patents (Class 568/729)
  • Novel di-(3'-hydroxyphenyl)-alkane compounds, process of preparation and their use in medicine
    Patent number: 4094994
    Abstract: Compounds of di-(3'-hydroxyphenyl)-alkanes and their methyl ethers, of the formula ##STR1## wherein R is alkyl and R' is H or methyl, have activity against hormone-dependent breast carcinoma.
    Type: Grant
    Filed: May 3, 1977
    Date of Patent: June 13, 1978
    Assignee: Klinge Pharma GmbH
    Inventors: Helmut Schonenberger, Gerhard Kranzfelder, Helga Schmitt-Wallenborn
  • Production of dihydroxydiphenyl alkanes
    Patent number: 4091038
    Abstract: Iodine is employed as a promoter for the reaction between phenol and a 1,2-dihaloethane wherein the halogen is chlorine, bromine or iodine using a zinc-containing catalyst to produce dihydroxydiphenylethanes, especially the 4,4'-isomer.
    Type: Grant
    Filed: March 24, 1977
    Date of Patent: May 23, 1978
    Assignee: Monsanto Company
    Inventor: Robert G. Schultz
  • Hydrogenolysis of hydrobenzoins
    Patent number: 4087463
    Abstract: Hydrogenolysis of hydrobenzoins [1,2-bis(aryl)ethane-1,2-diols] in the presence of a catalyst comprising cobalt carbonyl yields 1,2-bis(aryl)ethanes. The process is particularly directed to the production of 1,2-bis(4-hydroxyphenyl)ethane from 4,4-dihydroxyhydrobenzoin [1,2-bis(4-hydroxyphenyl)ethane-1,2-diol].
    Type: Grant
    Filed: December 22, 1976
    Date of Patent: May 2, 1978
    Assignee: Monsanto Company
    Inventors: Denis Forster, George F. Schaefer