only by the second method. Both methods worked for the synthesis of the methoxy derivatives 12 and 13 from 3 and 4, and the benzylideneamino derivative 15 from 6. 1-Amino-3- methylimidazoline-2-thione (16) was also prepared by hydrolysis of the benzylideneamino derivative 15. Crystal structures of seven 1,3-disubstituted imidazoline-2-thiones were determined by singlecrystal X-ray diffraction. Intermolecular
评估了两种方法(MeOH/K2CO3、
吡啶/Et3N)将
硫引入 1,3-二取代季
咪唑鎓盐 1-9 的 2-位(Cl、I、
BF4、PF6、
CH3OSO3 用作阴离子)得到九个 1,3-二取代
咪唑啉-2-
硫酮 10-18 (1, 10: R1 = , R2 = ; 2, 11: R1 = OCH2Ph, R2 = ; 3, 12: R1 = O , R2 = ;4, 13: R1 = O , R2 = O ; 5, 14: R1 = NH2, R2 = CH2Ph; 6, 15: R1 = NCHPh, R2 = ; 7, 16: R1 = NH2, R2 = ; 8, 17: R1 = NCHPh, R2 = NCHPh; 9, 18: R1 = NH2, R2 = O )。化合物11-18代表N-烷氧基和N-
氨基
咪唑啉-2-
硫酮,而10