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Document Type |
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Article In Journal |
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Document Title |
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MODERN FRIEDEL-CRAFTS CHEMISTRY .18. ALKYLATION OF BENZENE WITH 1,2-DIBROMO-2-METHYLPROPANE, 1-CHLORO-2-METHYL-2-PHENYLPROPANE, 3-CHLORO-2-METHYL-1-PROPENE AND 1-BROMO-2-METHYL-1-PROPENE MODERN FRIEDEL-CRAFTS CHEMISTRY .18. ALKYLATION OF BENZENE WITH 1,2-DIBROMO-2-METHYLPROPANE, 1-CHLORO-2-METHYL-2-PHENYLPROPANE, 3-CHLORO-2-METHYL-1-PROPENE AND 1-BROMO-2-METHYL-1-PROPENE |
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Document Language |
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Arabic |
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Abstract |
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Alkylation of benzene with the title compounds gave similar product mixtures containing isomeric 1,2-diphenyl-2-methylpropane (9), 1,1-diphenyl-2-methylpropane (10) and dl- and meso-2,3-diphenylbutane (11) in alkylations catalysed by appreciable amounts of AlCl3 or Al-HCl(g) and of 9 and 10 only;in alkylations catalysed by the milder catalysts AlCl3-CH3NO2, ZrCl4 and TiCl4. In almost all cases, 9 and 10 were always produced in an apparent equilibrium ratio of approximately 2 : 1. These new results disproved numerous earlier reports claiming the products from these reactions to contain only 9 and meso-11 depending on catalyst and conditions, Mechanistic interpretations are given to account for the results. |
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Journal Name |
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JOURNAL OF THE INDIAN CHEMICAL SOCIETY |
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Volume |
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72 |
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Issue Number |
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2 |
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Publishing Year |
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1995 AH
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Added Date |
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Sunday, June 29, 2008 |
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Researchers
| KHALAF AA | KHALAF AA | Researcher | | |
| حسن عبدالقادر البار | ALBAR HA | Researcher | | halbar@kau.edu.sa |
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