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Synthetic Communications
An International Journal for Rapid Communication of Synthetic Organic Chemistry
Volume 20, 1990 - Issue 1
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Original Articles

Preparation of Dithiolanes by Bentonitic Earth Catalysis

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Pages 153-157 | Received 22 Aug 1989, Published online: 24 Oct 2006

References

  • Laszlo , P. , ed. 1987 . “Preparative Chemistry Using Supported Reagents” , San Diego : Academic . Laszlo, P. and Cornelis, A., Aldrichimica Acta, 1988, 21, 97
  • Labiad , B. and Villemin , D. 1989 . Synth. Commun. , 19 : 31
  • Salmon , M. , Penieres , G. , Miranda , R. and Alvarez , C. 1981 . J. Heterocycl. Chem. , 18 : 1475
  • Salmon , M. , Miranda , R. and Angeles , E. 1986 . Synth. Commun. , 16 : 1827
  • Cano , A. C. , Delgado , F. , Córdoba , A. A. , Márquez , C. and Alvarez , C. 1988 . Synth. Commun. , 18 : 2051
  • “Tonsil Optimum Extra” (Mexican bentonite) is widely used by the industry, mainly as a filtering aid and decoloring agent of foodstuff oil. The used material consists approximately of: SiO2 (72.5%), A12O3(13.0%), Fe2O3(5.0%), MgO(1.5%), CaO(0.82%), moisture (8.5%), with pH 4–5. It is available from Tonsil Mexicana, S.A., Insurgentes Sur 1971; 01020 Mexico City at US 0.70/Kg)
  • Gervais , H. P. and Rassat , A. 1961 . Bull. Soc. Chim. France , : 743

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