SIOC English
化学学报
高级检索

化学学报 ›› 1955, Vol. 21 ›› Issue (4): 385-400. 上一篇    下一篇

论文

嘧啶的研究:氯对硫醇嘧啶的作用2-酮-4-氨基-5,6-二甲基-1,2-二氢-嘧啶的合成

纪育澧, 凌育宸   

  1. 中央卫生研究院药物学系
  • 投稿日期:1955-05-20 发布日期:2013-06-04

PYRIMIDINE RESEARCH.THE ACTION OF CHLORINE ON MERCAPTOPYRIMIDINES.SYNTHESIS OF 4, 5-DIMETHYL-CYTOSINE

CHI YUOH-FONG, LING YUOH-CHERN   

  1. The Department of Therapeutics, Central Institute of Health
  • Received:1955-05-20 Published:2013-06-04

PDF

711

1.甲醇鈉對於2-乙硫醇基-4,5-二甲基-6-氯代嘧啶在甲醇溶液中生成相應的乙硫醇基嘧啶甲醚.2.氯對於2-乙硫醇基-4,5-二甲基嘧啶衍生物(Ⅰ),在水溶液中的作用是特殊的,嘧啶中的不飽和現象不被氯化反應改變而硫醇基團被氧化,形成穩定相應嘧啶碸的衍生物(Ⅱ),因此製備了2-乙磺醯基-4,5-二甲基-6-甲氧基嘧啶和2-乙磺醯基-4,5-二甲基-6-氯代嘧啶.

The condensation of thiourea with ethyl methyl-acetoacetate in the presence of sodium ethylate in absolute ethyl alcohol gives 2-thio-4,5-dimethyl-6-oxy-pyrimidine,m.p.279-280°,which is ethylated to form 2-ethylmercapto-4,5-dimethyl-6-oxy-pyrimidine,m.p.155-156° by treating the former with ethyl iodide in the presence of sodium ethylate in absolute alcohol.