Reference

Some substituted 9-phenylxanthen-9-yl protecting groups

Some substituted 9-phenylxanthen-9-yl protecting groups. [Erratum to document cited in CA115(15):159612r]. Gaffney, Piers R. J.; Liu, Changsheng; Rao, M. Vaman; Reese, Colin B.; Ward, John G. (Dep. Chem., King's Coll. London, London WC2R 2LS, UK).In this study，401-78-5 is also used. J. Chem. Soc., Perkin Trans. 1, (10), 1275 (English) 1992. CODEN: JCPRB4. ISSN: 0300-922X. DOCUMENT TYPE: Journal CA Section: 33 (Carbohydrates) An error in formula 13 has been cor. The error was not reflected in the abstr. or the index entries. .

Syntheses and lipophilicities of tetraarylborate ions substituted with many trifluoromethyl groups

Syntheses and lipophilicities of tetraarylborate ions substituted with many trifluoromethyl groups. Fujiki, Kanji; Kashiwagi, Mitsuyoshi; Miyamoto, Hideyuki; Sonoda, Akinari (Grad. Sch. Eng. Sci., Kyushu Univ.In this study，401-78-5 is also used., Kasuga 816, Japan). J. Fluorine Chem., 57(1-3), 307-21 (English) 1992. CODEN: JFLCAR. ISSN: 0022-1139. DOCUMENT TYPE: Journal CA Section: 29 (Organometallic and Organometalloidal Compounds) Syntheses were investigated using various tetraarylborate ions with a large no. of trifluoromethyl groups: tetrakis[3,5-bis(trifluoromethyl)phenyl]borate; tetrakis[3,5-bis[1-methoxy-2,2,2-trifluoro-1-(trifluoromethyl)ethyl]phenyl]b orate; tetrakis[3-[1-methoxy-2,2,2-trifluoro-1-(trifluoromethyl)ethyl]-5-(trifluorom ethyl)phenyl]borate; and tetrakis[3-[2,2,2-trifluoro-1-(2,2,2-trifluoroethoxy)-1-(trifluoromethyl)ethyl] -5-(trifluoromethyl)phenyl]borate ions. The prepn. of Grignard reagents and the subsequent reaction with boron trifluoride etherate are important steps for a higher yield and easier isolation of the product. Sodium and tetramethylammonium salts of these borate ions are sol. in halocarbon solvents such as dichloromethane, chloroform and 1,2-dibromotetrafluoroethane.Some commonly used reagents like 401-78-5 is used in this experiment. ..