TRI-FUNCTIONAL UV-ABSORBING COMPOUNDS AND USE THEREOF
申请人:Domschke Angelika Maria
公开号:US20100168359A1
公开(公告)日:2010-07-01
Described herein are tri-functional compounds useful in the production of ophthalmic lenses. The compounds are composed of UV absorber having a polymerization initiator directly or indirectly bonded to the ultraviolet absorber, and an olefinic group directly or indirectly bonded to the ultraviolet absorber. Also described herein are polymers and ophthalmic lenses produced from the tri-functional compounds described herein.
Halogen-bonded iodonium ion catalysis: a route to α-hydroxy ketones via domino oxidations of secondary alcohols and aliphatic C–H bonds with high selectivity and control
been developed from benzylic secondary alcohols employing catalytic iodonium ions stabilized by DMSO. The reaction proceeds through an unprecedented sequential oxidation of alcohols to ketone and its α-hydroxylation in a controlled manner. The spectroscopic evidences establish the possibility of formation of a stable halogen–bonded adduct between DMSO and iodonium ions.