Alkenenitriles: Conjugate Additions of Alkyl Iodides with a Silica-Supported Zinc−Copper Matrix in Water
摘要:
A new silica-supported zinc-copper matrix reagent promotes the conjugate addition of alkyl iodides to cyclic and acyclic alkenenitriles in water. X-ray diffraction and electron microscopy techniques suggest that the active copper species generated from elemental zinc and copper(I) iodide is finely dispersed, zerovalent copper. Alkyl iodides react with the silica-supported reagent to generate putative radicaloid intermediates that efficiently add to alkenenitriles to provide beta-substituted nitriles. Conjugate additions to acyclic and cyclic 5-7-membered alkenenitriles are most effective for primary alkyliodides, although secondary and tertiary alkyliodides are viable reaction partners. The strategy addresses the challenge of performing conjugate additions to disubstituted alkenenitriles and demonstrates the beneficial role of the silica-supported reagent.
ALPHA-SUBSTITUTED CYCLOPENTANECARBONITRILES OR CYCLOHEXANECARBONITRILES AND THEIR USE IN PERFUMERY
申请人:Gaudin Jean-Marc
公开号:US20100247467A1
公开(公告)日:2010-09-30
The present invention relates to the field of perfumery. More particularly, it concerns α-substituted cyclopentanecarbonitriles or cyclohexanecarbonitriles. These compounds are valuable perfuming ingredients having fruity or jasminic odor notes. The present invention also concerns the compositions or articles containing the compound.
Method for the preparation of cross-linked polyethylene foams and foams produced by the method
申请人:BP CHEMICALS FOAMS BUSINESS, SA
公开号:EP0210760A2
公开(公告)日:1987-02-04
A foam of cross-linked polyethylene having micnocell strucutre is prepared using a chemical cross-linking initiator having a 10 hours half life temperature of from 80°C to 110°C. In a proferred embodiment, the chemical cross-linking agent is employed in combination with co-cross-linking agent such as triallyl cyanurate.
The disclosure relates to cannabinoid derivative compounds, pharmaceutical compositions made thereof, and methods for treating various diseases and disorders including cancer.
Alpha-substituted cyclopentanecarbonitriles or cyclohexanecarbonitriles and their use in perfumery
申请人:Firmenich S.A.
公开号:EP2217563B1
公开(公告)日:2013-01-30
CANNABIDINOID DERIVATIVES
申请人:SUTTER WEST BAY HOSPITALS
公开号:US20130209483A1
公开(公告)日:2013-08-15
The disclosure relates to cannabinoid derivative compounds, pharmaceutical compositions made thereof, and methods for treating various diseases and disorders including cancer.