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
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.
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.
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
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.