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Alkylation of the aromatic nucleus

✍ Scribed by Badr, M. Zarif A. ;Abdel-Rahman, A. E.

Publisher
Wiley (John Wiley & Sons)
Year
2007
Tongue
English
Weight
373 KB
Volume
24
Category
Article
ISSN
0375-9210

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✦ Synopsis

Abstract

The proportion of α‐ and β‐alkyl naphthalenes has been determined in the products of the thermal decomposition of sulphonic acid esters of ethyl, isopropyl and sec‐butyl alcohols in naphthalene as aromatic solvent, The isomer ratios from alkylation by sulphonic acid esters are compared with that produced in alkylations by the alcohols and sulphuric acid or phosphoric acid as condensing agents. Aluminium chloride, when used as a catalyst affected the process of dealkylation—alkylation to a great extent during alkylation reaction resulting in a large difference in isomer ratio as observed.

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## Abstract The reaction of an aldimine with dicyclohexylboron chloride in the presence of hydrogen peroxide gives __N__‐[cyclohexyl(aryl)methyl]arylamines **2** in good yields via oxidized imine–borane complexes. The amines can also be obtained by a three‐component reaction involving an arenecarba