Synthesis of 1,3,4-Oxadiazinium Bromides from 1,1-Dimethylhydrazine Derivatives and 1,3-Dibromopropyne
作者:A. S. Nakhmanovich、V. N. Elokhina、L. I. Larina、E. V. Abramova、V. A. Lopyrev
DOI:10.1007/s11176-005-0246-6
日期:2005.3
2-Aryl(heteryl, dimethylamino)-6-bromomethylidene-4,4-dimethyl-5H-1,3,4-oxadiazinium bromides were prepared in good yields by the reactions of 1-aroyl(heteroyl)-2,2-dimethylhydrazines and 1,1,4,4-tetramethylsemicarbazide with 1,3-dibromopropyne in MeOH or MeCN at 20–50°C.
2-芳基(杂基、二甲氨基)-6-溴甲叉-4,4-二甲基-5H-1,3,4-噁二嗪鎓溴化物通过1-芳酰基(杂酰基)-2,2-二甲基肼与1,1,4,4-四甲基脲半缩氨腈在20-50°C下于甲醇或乙腈中与1,3-二溴丙炔反应制得,产率良好。