Download full text in PDF Opens in a new window. Article suggestions will be shown in a dialog on return to ScienceDirect. ... Please enable JavaScript to use all the features on this page. ... Department of Organic Chemistry University of Madras, Madras, Tamilnadu-600 025, India. ... Coupling of the dichlorides 9 & 10 with xylenedithiols and m-terphenyldithiol under high dilution technique in presence of KOH in benzene afforded the cyclophanes of the class 1 & 2.