74074-24-1Relevant articles and documents
Reaction Behaviour of Amides with Carbondisulphide and Isothiocyanates
Richter, M.,Strauss, K.,Schaedler, H.-D.,Augustin, M.
, p. 625 - 630 (2007/10/02)
Reactions of substituted arylamides, hetarylamides and furylacrylicamide 1 with carbon disulphide present a possibility to synthesize imino-dithiocarbonic-S,S'-diester 5.The mechanism of the reaction and the reaction conditions are investigated.Quantum chemical investigations by simple HMO-method in connection with the experimental results describe the reaction in dependence upon the influence of substituent in 2- and 4-position to the phenylring.Further more is describe the reaction of amide with isothiocyanates to thiourea 6 and isothiourea 7. The structures of the final products are determined by analytical dates.
Reactions with N-Acylimino-dithiocarbonic-acid-diesters
Augustin, M.,Richter, M.,Salas, S.
, p. 55 - 68 (2007/10/02)
Reactions of N-acylimino-dithiocarbonic-acid-S,S-diesters 1 with nucleophilic compounds present new possibilities to synthesize heterocycles.With amines 1a reacts by mono- and disubstitution, respectively, of methylthio-groups to isothioureas 2 and guanidines 3, with 1,2-binucleophilic arenes to benzoheterocycles 4, with aliphatic diamines to imidazolines 5, pyrimidines 6, diazepines 7 and the hexamethylene-diamine-derivatives 8. 1a reacts also with hydrazines to 1,2,4-triazoles 9 and with hydrazides to the thiosemicarbazones 10 or 1,3,4-oxadiazoles 11.Heterocyclisations of 1 with guanidines, thiourea, salts of thiourea and amidines give the 1,3,5-triazines 12, 14, 15 and 16.N-benzoyl-dithiocarbonic-acid-methylester -amid reacts with CH-acidic compounds to thiazoles 17.The structures of the final products are determined by i.r.-, 1H-n.m.r.-, u.v.- and mass-spectras.