The Two Cyclos Share At Least Three Ring Members (i.e., Bridged) Patents (Class 549/397)
  • Separation of 1,8-cineole by forming a complex with hydroquinone
    Patent number: 4521608
    Abstract: Mixtures containing 1,8-cineole are treated with hydroquinone to complex with and precipitate the 1,8-cineole. The complex in a crystalline form is separated from the mixture and dissociated to give 1,8-cineole which may be isolated in high-purity form by filtration or distillation.
    Type: Grant
    Filed: May 12, 1983
    Date of Patent: June 4, 1985
    Assignee: Union Camp Corporation
    Inventor: Peter W. D. Mitchell
  • Method of synthesizing brevicomin and using same in beetle control
    Patent number: 4426535
    Abstract: A method of producing synthetic brevicomin by direct distillation and a method of using the same in interfering with normal propagation of Dendroctonus beetles.
    Type: Grant
    Filed: October 20, 1981
    Date of Patent: January 17, 1984
    Assignee: University of Pittsburgh
    Inventors: Theodore Cohen, James Matz
  • 3-Phenylmethoxytetrahydropyran herbicides
    Patent number: 4388104
    Abstract: Certain 3-phenylmethoxytetrahydropyrans, useful as herbicides.
    Type: Grant
    Filed: October 26, 1981
    Date of Patent: June 14, 1983
    Assignee: Shell Oil Company
    Inventors: James E. Powell, Michael D. Barker
  • Process for preparing 8-oxabicyclo[3.2.1]-octane-1-acetic acids
    Patent number: 4360467
    Abstract: The preparation of racemic 1R, 4R, 5R-5-(4', 8'-dimethyl-5'-hydroxy-7'-nonenyl)-5-methyl-8-oxabicyclo[3.2.1]-octane-1-a cetic acid is described. The cycloheptane compounds are active uteroevacuant agents.
    Type: Grant
    Filed: September 8, 1981
    Date of Patent: November 23, 1982
    Assignee: Ortho Pharmaceutical Corporation
    Inventor: Ramesh M. Kanojia
  • Process for separating 1,4 cineoles from 1,8 cineoles
    Patent number: 4347189
    Abstract: A method of separating 1,4 cineole from a mixture containing 1,4 and 1,8 cineoles wherein the mixture is contacted with a zeolite having a constraint index of from 0.2 to 12 and having port sizes of approximately 6.7-7.0 angstroms. This causes the 1,4 cineole to be sorbed into the zeolite while the 1,8 cineole is excluded. The zeolite is then separated from the 1,8 cineole so that the 1,4 cineole may be desorbed from the zeolite. This desorbtion may be accomplished by heating the zeolite to a temperature above the boiling point of the cineole or by liquid phase displacement.
    Type: Grant
    Filed: May 11, 1981
    Date of Patent: August 31, 1982
    Assignee: Mobil Oil Corporation
    Inventor: Theodore P. Goldstein