201605-92-7Relevant academic research and scientific papers
PROCESSES FOR THE PREPARATION OF ORTHO-ALLYLATED HYDROXY ARYL COMPOUNDS
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Paragraph 00280-00282; 00285, (2021/12/08)
The present application describes process for preparing an ortho-allylated hydroxy aryl compounds such as compounds of Formula (I) by reacting an allylic alcohol with a hydroxy aryl compound in the presence of aluminum compound selected from alumina and aluminum alkoxides and in a non-protic solvent wherein at least one carbon atom ortho to the hydroxy group in the hydroxy aryl compound is unsubstituted. The present application also includes compounds of Formula (I).
Catalytic, Enantioselective, Intramolecular Sulfenofunctionalization of Alkenes with Phenols
Denmark, Scott E.,Kornfilt, David J. P.
, p. 3192 - 3222 (2017/03/23)
The catalytic, enantioselective, cyclization of phenols with electrophilic sulfenophthalimides onto isolated or conjugated alkenes affords 2,3-disubstituted benzopyrans and benzoxepins. The reaction is catalyzed by a BINAM-based phosphoramide Lewis base c
Design of a New Bimetallic Catalyst for Asymmetric Epoxidation and Sulfoxidation
Bhadra, Sukalyan,Akakura, Matsujiro,Yamamoto, Hisashi
supporting information, p. 15612 - 15615 (2016/01/09)
A new chiral tethered 8-quinolinol-based ligand class is developed. The binuclear titanium complex of the ligand operates through a novel mechanism allowing for the regio- and stereoselective epoxidation of primary and tertiary homoallylic alcohols (up to 98% ee), as well as first examples of 2-allylic phenols (up to 92% ee). The new catalyst system also promotes the asymmetric oxidation of γ-hydroxypropyl sulfides giving an important class of chiral sulfoxides that have been inaccessible to date (up to 95% ee).
Palladium-catalyzed coupling of alkynes with alcohols and carboxylic acids
Zhang, Weijiang,Haight, Anthony R.,Hsu, Margaret C.
, p. 6575 - 6578 (2007/10/03)
The palladium-catalyzed coupling of alkynes with alcohols and carboxylic acids to give allylic ethers and esters has been achieved. With phenols, these conditions furnish the C-alkylation products.
