作者:Maria S. de Pablo、Teresa Gandásegui、Juan J. Vaquero、José L. García Navío、Julio Alvarez-Builla
DOI:10.1016/s0040-4020(01)89452-7
日期:——
from 3,4-dihydropyrrolo[1,2-a]pyrazinium salts undergo 1,3-dipolar cycloaddition reactions to yield 5,6-dihydrodipyrrolo[1,2-a:2′,1′-c]-pyrazine and 5,6-dihydroimidazo[1,2-a]-pyrrolo[2,1-c]pyrazin-4-inium-2-olate and 2-thiolate derivatives. S-Methylation followed by nucleophilic displacement of methylthio group converted the 2-thiolate derivatives into new conjugated betaines.
衍生自3,4-二氢吡咯并[1,2-a]吡嗪鎓盐的甲亚胺基化物经过1,3-偶极环加成反应,生成5,6-二氢吡咯并[1,2-a:2',1'-c]-吡嗪5,6-二氢咪唑并[1,2-a]-吡咯并[2,1-c]吡嗪-4-铟-2-油酸酯和2-硫醇酯衍生物。S-甲基化,然后进行甲硫基的亲核取代,将2-硫醇盐衍生物转化为新的共轭甜菜碱。