Influence of Solvent from Which Crystals of 2-Amino-5-Aryl-1,3,4-Oxadiazoles Grow on Acetylation Reaction in Solid State
                                
                                    
                                        作者:V. A. Dymshits、O. G. Rublewa                                    
                                    
                                        DOI:10.1080/10587259608034079
                                    
                                    
                                        日期:1996.1
                                    
                                    The phenomenon of reaction anisotropy, i.e. forming of different products on different crystals' facets, is characteristic for 2-amino-5-aryl-1,3,4-oxadiazoles solid-state acetylation. In this case, the ratio of products in reaction yield depends on the form of substrate crystal, hence, on the solvent from which the crystal was grown. This hypothesis was confirmed by acetylation of different substituted 2-amino-5-aryl-1,3,4-oxadiazole crystals obtained from dimethylformamide, butyl alcohol and chloroform.