REFERENCES
- Luh , T. Y. 1991 . Acc. Chem. Res. , 24 : 257
- Page , P. C.B. , Van Niel , M. B. and Prodger , J. C. 1989 . Tetrahedron , 45 : 7643
- Gröbel , B. T. and Seebach , D. 1977 . Synthesis , : 357
- Seebach , D. 1979 . Angew. Chem. Int. Ed. Engl. , 18 : 239
- Juaristi , E. , Tapia , J. and Méndez , R. 1986 . Tetrahedron , 42 : 1253
- Juaristi , E. and Cuevas , G. 1995 . The AnomericEffect Boca Raton, FL : CRCPress, Inc. .
- Corey , E. and Seebach , D. 1975 . Org. Synth. , 40 : 231
- Olah , G. A. and Welch , J. 1978 . J. Am. Chem. Soc. , 100 : 5396
- Autenrieth , W. and Wolff , K. 1899 . Chem. Ber. , 32 : 1375
- Bowie , J. H. and White , P. Y. 1969 . Org. Mass Spectrom. , 2 : 611
- Pihlaja , K. , Jordan , D. M. , Nikkila , A. and Nikander , H. 1973 . Adv. Mol. Relax. Proc. , 5 : 227
- Seebach , D. , Erickson , B. W. and Singh , G. J. 1966 . Org. Chem. , 31 : 4303
- Seebach , D. 1969 . Synthesis , : 17
- Kamitori , Y. , Hojo , M. , Masudo , R. , Kimura , T. and Yoshida , J. 1986 . J. Org. Chem. , 51 : 1427
- O'Neill , P. and Hegarty , A. F. 1987 . J. Org. Chem. , 52 : 2114
- Labiad , B. and Villemin , D. 1989 . Synth. Commun. , 19 : 31
- Miranda , R. , Escobar , J. , Delgado , F. , Salmón , M. and Cabrera , A. 1999 . J. Mol. Cat. , 150 : 299
- Obrador , E. , Castro , M. , Tamariz , J. , Zepeda , G. , Miranda , R. and Delgado , F. 1998 . Synth. Commun. , 28 : 4649
- Miranda , R. , Ríos , H. , Salmón , M. , Cogordán , J. A. and Cabrera , A. 2000 . J. Appl. Cat. , TonsilActisil FF (TAFF), a commercial Mexican bentonitic clay, is easily availablefrom Tonsil Mexicana S.A.de C.V. Mexico City, Mexico at US$ 1.30/kg. Examinedwith x-ray fluorescence, this clay proved to have the following composition(in percent): SiO2, 74.5; Al2O3,9.3; MgO, 0.4; Fe2O3, 1.3; CaO,4.0; K2O, 0.4; TiO2, 0.4; H2O,9.7. When x-ray thermodiffractograms were run, the laminar structure was foundto be unstable above 150°C. Quartz and cristobalite are also importantcomponents in the clay composition as observed by x-ray diffraction. The correspondingBET surface area was 198.718m2g−1and the pore volume and average pore diameter were 32.04×10−2cm3 g−1 and 77.8AÅ, respectively. It is worth mentioning that a detailed characterizationof the clay (29Si and 27AlMAS-NMR, SEM, IR-Py, DTA, and TG, Ho) is under review
- Miranda , R. , Cervantes , H. and Joseph-Nathan , P. 1990 . Synth. Commun. , 20 : 153
- Cseri , T. , Békássy , S. B. , Figueras , F. , Cseke , E. , de Menorval , L. C. and Dutartre , R. 1995 . J. Appl. Cat. A: General , 132 : 141
- Lipkowitz , K. B. and Boyd , D. B. 1991 . Reviews in Computational Chemistry Vol. 2 , 313 New York : VHC Publishers .