Syntheses and Structures of Isomeric [6.6]-and [8.8] Cyclophanes with 1, 4-Dioxabut-2-yne and 1, 6-Dioxahexa-2, 4-diyne Bridges

M Srinivasan, S Sankararaman, H Hopf…

Index: Srinivasan; Sankararaman; Hopf; Dix; Jones Journal of Organic Chemistry, 2001 , vol. 66, # 12 p. 4299 - 4303

Full Text: HTML

Citation Number: 51

Abstract

All three isomers (ortho, meta, and para) of [8.8] cyclophane bearing 1, 6-dioxahexa-2, 4- diyne bridges have been synthesized and structually characterized by single-crystal X-ray crystallography to determine the conformation of the cyclophanes and their cavity dimensions. The three isomeric [6.6] cyclophanes bearing 1, 4-dioxabut-2-yne bridges have also been synthesized from but-2-yne-1, 4-diol ditosylate and the isomeric ...