YTTERBIUM TRIFLATE, FRIES-TYPE REARRANGEMENT, ACYLANILIDES, LITHIUM PERCHLORATEYtterbium triflate has been used to catalyse the Fries-type rearrangement of various acylanilides with moderate yields when lithium perchlorate was used as co-catalyst.
M. C. JIMENEZP. LEALM. A. MIRANDAR. TORMOSJohn Wiley & Sons, LtdCheminformM. Consuelo Jimenez, et al., " Norrish Type I Photoreaction in the Presence of Phenols; an Intermolecular Photo-Fries Rearrangement " J. Chem. Soc., 1995....
Fries-type rearrangementactivatorC-GlycosylphenolsCglycosylationstereoselectivityantibiotics pluramycinssamarium iodideboron trifluorideoxonium ionC-Glycosylphenols and -polyphenols occur widely in nature and present a variety of biological properties, namely antitumor, antibacterial and antidiabetic activities. ...
Fries-type rearrangementnucleophilic aromatic substitutionfluoride ionA novel and efficient synthesis of xanthones is described. 2-(Trimethylsilyl)phenyl 2-fluorobenzoate derivatives undergo Fries-type rearrangement and intramolecular SNAr reaction in a one-pot sequential manner under fluoride ion-promoted mild...
FT-IR spectra of the irradiated aromatic polyurethanes films showed a consistent change to the targeted photo-Fries rearrangement. Ellipsometry revealed refractive index increase up to +0.0411 after the irradiation of the films for 60 min, presenting the good potential of aromatic polyurethanes as the...
FT-IR spectra of the irradiated aromatic polyurethanes films showed a consistent change to the targeted photo-Fries rearrangement. Ellipsometry revealed refractive index increase up to +0.0411 after the irradiation of the films for 60 min, presenting the good potential of aromatic polyurethanes as the...
Borzatta Valerio,Busca Guido,Poluzzi Elisa. As to the reasons of the high activity of a commercial pentasil-type zeolite in the vapor-phase Fries rearrangement[J].Applied Catalysis A:General,2004,(1):85.doi:10.1016/S0926-860X(03)00636-7....
ICHIHARA.Modification of the Fries Type Rearrangement of the O-Enol Acyl Group Using N,N-Dicyclohexylcarbodiimide and 4-Dimethylaminopyridine. Synlett . 1993H. TABUCHI,T. HAMAMOTO,A. ICHIHARA.Modification of the Fries Type Rearrangement of the O-Enol Acyl Group Using N,N-Dicyclohexylcarbodiimide ...
In contrast, the [1,6]rearrangement is rather slow even at 25°C. The absence of crossover products indicates the intramolecular nature of the carbamoyl group migration.doi:10.1002/ange.201704006Heejin KimDepartment of Synthetic Chemistry and Biological Chemistry Graduate School of Engineering Kyoto ...
Modification of the Fries Type Rearrangement of the O-Enol Acyl Group Using N,N-Dicyclohexyl-carbodiimide and 4-DimethylaminopyridineN N O Odoi:10.1055/s-1993-22558Tabuchi, HiroyasuHamamoto, TaisukeIchihara, AkitamiSynlett