论文信息 - SILICA-SUPPORTED HETEROPOLYACIDS READILY INDUCE CYCLODIMERIZATION OF STYRENES AND STILBENES

SILICA-SUPPORTED HETEROPOLYACIDS READILY INDUCE CYCLODIMERIZATION OF STYRENES AND STILBENES

ABSTRACT Heteropolyacids such as molybdophosphoric and tungstophosphoric acids, supported over silica, readily induce cyclodimerisation reactions of styrenes and stilbenes affording a mixture of indane and/or tetraline derivatives with remarkably high efficiency and in reduced reaction time.

[1] P. Vázquez,et al. Silica-supported heteropolyacids as catalysts in alcohol dehydration reactions , 2000 .

[2] G. Farinola,et al. Aminium salt induced cyclodimerization of stilbenes in 1,1,1,3,3,3-hexafluoropropan-2-ol , 1999 .

[3] B. Chaudhuri. A Liquid−Liquid Process for Production of 2,4-Diphenyl-4-methyl-1-pentene by Dimerization of α-Methylstyrene , 1999 .

[4] Teng Xu,et al. NMR Observation of Indanyl Carbenium Ion Intermediates in the Reactions of Hydrocarbons on Acidic Zeolites , 1994 .

[5] Jorge D. Mufato,et al. Synthesis of r-1-Ethyl-t-2-methyl-t-3-arylindans , 1992 .

[6] R. Wolovsky,et al. Reactions of some .alpha.- and .beta.-substituted styrenes in the presence of ethylaluminum dichloride , 1973 .

[7] D. Morris,et al. Tricyclic dimers of propenylphenyl ethers—I : NMR and stereochemistry , 1969 .

[8] F. Mayo,et al. The dimerization of styrene , 1968 .

[9] R. A. Benkeser,et al. Factors Governing Orientation in Metalation Reactions. II. The Metalation of Isopropylbenzene withn-Amylsodium andn-Amylpotassium , 1963 .

[10] L. M. Adams,et al. Reaction of the Saturated Dimer of α-Methylstyrene with Aluminum Chloride. The Preparation of a Substituted Tetrahydroindenoindene , 1959 .