[EN] SILANE COMPOUNDS AND METHODS OF USING THEREOF<br/>[FR] COMPOSÉS SILANES ET LEURS MÉTHODES D'UTILISATION
申请人:OHIO STATE INNOVATION FOUNDATION
公开号:WO2015157765A1
公开(公告)日:2015-10-15
Provided herein are silane compounds. The silane compounds can be used as organocatalysts and as sensors. Accordingly, also provided are methods of using the silane compounds described herein as catalysts. Methods of using the silane compounds described herein as catalysts can involve contacting a first organic species and a second organic species with a catalytically effective amount of a silane compound or a catalyst composition comprising a silane compound under conditions effective to form the desired product. The product can preferably be enantioenriched.
Preparation and Catalytic Activity of BINOL-Derived Silanediols
作者:Joshua M. Wieting、Thomas J. Fisher、Andrew G. Schafer、Michael D. Visco、Judith C. Gallucci、Anita E. Mattson
DOI:10.1002/ejoc.201403441
日期:2015.1
Enantiopure silanediols derived from BINOL are an innovative family of stereoselective hydrogen-bond donor (HBD) catalysts. Silanediols incorporated into a BINOL framework are attractive catalysts, as they are readily accessible and highly customizable. Structural modifications of the BINOL backbone affect the reactivity and selectivity of the silanediol catalysts in the additions of silyl ketene acetals
Reversal of Enantioselectivity Approach to BINOLs via Single and Dual 2-Naphthol Activation Modes
作者:Hun Young Kim、Shinobu Takizawa、Hiroaki Sasai、Kyungsoo Oh
DOI:10.1021/acs.orglett.7b01734
日期:2017.7.21
A mechanism-driven enantiodivergent approach to chiral 1,1′-bi-2-naphthols via catalytic asymmetric oxidative coupling of 2-naphthol derivatives is described for the first time. By utilizing 2-naphthol derivatives with low oxidation potential, the substrates were activated by either chiral mononuclear or dinuclear vanadium(V) catalyst to promote distinctively different asymmetric reaction pathways:
Tandem carbon–carbon bond insertion and intramolecular aldol reaction of benzyne with aroylacetones: novel formation of 4,4′-disubstituted 1,1′-binaphthols
An efficient route to 4-aryl-2-naphthols from arynes and aroylacetones was developed by carbon-carbon bond insertion followed by an intramolecular aldol reaction and dehydration. Benzyne derived from 2-(trimethylsilyl)phenyl triflate reacted with benzoylacetones in refluxing acetonitrile to give 4-aryl-2-naphthols and 3-aryl-1-naphthols.
Copper-catalyzed divergent oxidative pathways of 2-naphthol derivatives: ortho-naphthoquinones versus 2-BINOLs
作者:H. Y. Kim、S. Takizawa、K. Oh
DOI:10.1039/c6ob01183g
日期:——
aerobic oxidation of 2-naphthol derivatives to ortho-naphthoquinones whereas switching the catalyst system to Cu(OAc)2–DBN under an argon atmosphere allows the oxidative coupling of 2-naphthols to 1,1′-bi-2-naphthols (BINOLs) in good to excellent yields.