Synthesis of unsaturated sulphur compounds containing seventeen-and twenty-one-membered rings
Abstract
The synthesis of 2,5:14,17-diepoxy-8, 11-epithiothiacycloheptadecin (12). 2,5:8,11:14,17-triepoxythiacycloheptadecin (13), and 2,5:8,11:12,15:18,21-tetraepoxythiacycloheneicosin (21) is described. The n.m.r. spectra of these compounds show that they are atropic.