Journal of molecular structure

Synthesis, molecular structure and optical spectral studies of syn-dithia benzothiazolophane and anti-bis-lactone benzothiazolophane

SH Mashraqui, S Kumar, ETH Dâu

Index: Mashraqui, Sabir H.; Kumar, Sukeerthi; Dau, Elise Tran Huu Journal of Molecular Structure, 2004 , vol. 697, # 1-3 p. 221 - 230

Full Text: HTML

Citation Number: 4

Abstract

Synthesis of syn-dithia-benzothiazolophane 1 and anti-bis-lactone benzothiazolophane 2 has been carried out by well established protocols as outlined in Schemes 1 and 2, respectively. The 1H NMR spectra of heterophanes 1 and 2 were found to be temperature independent in the range of− 55 to+ 120° C which indicates conformationally mobile nature of these molecules. In comparison to plain CHCl3, the UV–visible spectra of 1 and 2 ...