Influence of beta-Cyclodextrin on Coupling Reactions of o-Nitrobenzenediazonium Salt with Pyrrole

摘要

The influence of P-cyclodextrin on o-nitrobenzenediazonium salt coupling with pyrrole has been studied analyzing the yield and products distribution.Cyclodextrins found wide application in contemporary chemistry.Complexation of lipophilic molecules by cyclodextrins caused significant increase of their solubility in polar solvents,e.g.,in water [1] which is important for preparation of drug formulations leading to their better accessibility from alimentary canal.Cyclodextrins affect stability of complexed molecules;in some cases they delay their chemical changes,e.g.increase photo fading resistance of free azo dyes and dyes anchored to cotton fibers.