Heterocyclizations of functionalized heterocumulenes with C,N-, C,O-, and C,S-binucleophiles: VII. Reaction of 1-chloroalkyl isocyanates with N,N-disubstituted cyanothioacetamides. A new synthetic route to 6-dialkylamino-4-oxo-3,4-dihydro-2H-1,3-thiazine-5-carbonitriles
                                
                                    
                                        作者:V. A. Sukach、N. G. Chubaruk、M. V. Vovk                                    
                                    
                                        DOI:10.1134/s1070428007040112
                                    
                                    
                                        日期:2007.4
                                    
                                    Reactions of alpha-chlorobenzyl isocyanates and 1-aryl-2,2,2-trifluoro-1-chloroethyl isocyanates with N,N-disubstituted cyanothioacetamides gave 3,4-dihydro-2H-1,3-thiazin-4-ones and 3-aryl-2-cyano-4,4,4-trifluorobut-2-enethioamides. The effect of substituents in the reactant molecules on the reaction course and product ratio was studied.