title: Synthesis of triarylmethanes by palladium-catalyzed C-H/C-O coupling of oxazoles and diarylmethanol derivatives.
abstract: A PdCl2(MeCN)2/PPhCy2 catalyst couples oxazoles with diarylmethyl carbonates or pivalates to form the corresponding triarylmethanes in good yields. The catalysis involves successive secondary benzylic sp(3) C-O and heteroaromatic sp(2) C-H cleavages and provides an effective access to heteroarene-containing triarylmethanes from nonhalogenated and nonmetalated starting materials, which is complementary to precedented cross-coupling technologies with organic halides and organometallic reagents.
authors.affiliation: Department of Applied Chemistry, Faculty of Engineering, Osaka University , Suita, Osaka 565-0871, Japan.
authors.forename: Sho
authors.initials: S
authors.lastname: Tabuchi
authors.forename: Koji
authors.initials: K
authors.lastname: Hirano
authors.forename: Tetsuya
authors.initials: T
authors.lastname: Satoh
authors.forename: Masahiro
authors.initials: M
authors.lastname: Miura
mesh_terms: D002384:Catalysis; D006860:Hydrogen Bonding; D007202:Indicators and Reagents / Q000737:chemistry*; D008697:Methane / Q000031:analogs & derivatives* / Q000138:chemical synthesis* / Q000737:chemistry; D015394:Molecular Structure; D009942:Organometallic Compounds / Q000737:chemistry*; D010080:Oxazoles / Q000737:chemistry*; D010165:Palladium / Q000737:chemistry*
chemical_list: D007202:Indicators and Reagents; D009942:Organometallic Compounds; D010080:Oxazoles; D010165:Palladium; C008756:palladium chloride; D008697:Methane