会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 9. 发明授权
    • 농·의약 합성중간체로 유용한 불소 치환기 함유헤테로고리 화합물 및 이의 제조방법
    • 농·합함함함헤헤헤헤및및및및및및및및및및및및및및및및
    • KR100459938B1
    • 2004-12-03
    • KR1020010063681
    • 2001-10-16
    • 한국화학연구원
    • 김범태민용기이연수박노균
    • C07D231/20
    • PURPOSE: Provided are a fluorine-substituted heterocyclic compounds, 5-fluorpyrazole derivative and 4-fluor-6-hydroxy pyrimidine, useful as intermediates for the synthesis of agrochemicals and medicinal antagonists and methods for preparing them regio selectively in high yields. CONSTITUTION: The fluorine-substituted heterocyclic compounds, 5-fluorpyrazole derivative and 4-fluor-6-hydroxy pyrimidine are represented by the formula(1a) or(1b), and formula(2) respectively, wherein X is hydrogen, halogen, C1-4 alkyl, C1-4 alkoxy or C1-C4 arylalkyloxy; RF is fluorine or trifluoromethyl; and R1, R2 and R3 are individually hydrogen, C1-4 alkyl, C1-4 aryl or C1-4 arylalkyl. They are manufactured by one pot reaction with a substituted hydrazine derivative and a guanidine derivative using methyl 2-fluoralkyl 2-phenylacetate derivative as a starting material.
    • 用途:提供了用作合成农用化学品和药物拮抗剂的中间体的氟取代的杂环化合物,5-氟吡唑衍生物和4-氟-6-羟基嘧啶,以及以高产率选择性地制备它们的方法。 构成:氟取代的杂环化合物5-氟吡唑衍生物和4-氟-6-羟基嘧啶分别由式(1a)或(1b)和式(2)表示,其中X是氢,卤素,C1 -4烷基,C 1-4烷氧基或C 1 -C 4芳基烷氧基; RF是氟或三氟甲基; 且R1,R2和R3分别为氢,C1-4烷基,C1-4芳基或C1-4芳烷基。 它们通过使用甲基2-氟代烷基2-苯基乙酸酯衍生物作为原料通过与取代的肼衍生物和胍衍生物一锅法反应来制备。