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
    • 1. 发明公开
    • 벤젠 디올의 모노카르보닐화 방법
    • 苯并噻唑的单克隆方法
    • KR1020030032301A
    • 2003-04-26
    • KR1020010064008
    • 2001-10-17
    • 에스케이바이오랜드 주식회사한국화학연구원
    • 이연수김범태민용기박노균김기호김기수
    • C07C67/313
    • C07C67/08C07C67/14C07C68/02C07C69/017C07C69/96C07C69/16C07C69/78
    • PURPOSE: A monocarbonylation method of benzenediol is provided, to prepare the monocarbonyl benzenediol with a high production yield without using a base. CONSTITUTION: The method comprises the step of reacting the benzenediol represented by the formula II with an acid anhydride or a carbonyl halide represented by the formula III in the absence of an organic or inorganic base to prepare the monocarbonyl benzenediol represented by the formula I, wherein R is H, an alkyl group of C1-C14, a cycloalkyl group, an aryl group, an alkoxy group, an aryloxy group, a dialkylamino group, an alkylarylamino group or a diarylamino group; and X is a common leaving group comprising Cl or an acetoxy group. The unreacted benzenediol of the formula II is recovered by using a nonpolar solvent, and the nonpolar solvent is at least one selected from the group consisting of benzene, toluene, xylene, ether, hexane, petroleum ether, methylene chloride and chloride.
    • 目的:提供苯二酚的单羰基化方法,以无需使用碱就可以高产率地制备单羰基苯二酚。 方案:该方法包括在不存在有机或无机碱的情况下使由式II表示的苯二酚与式III表示的酸酐或羰基卤反应以制备由式I表示的单羰基苯二酚,其中 R是H,C1-C14的烷基,环烷基,芳基,烷氧基,芳氧基,二烷基氨基,烷基芳基氨基或二芳基氨基; 并且X是包含Cl或乙酰氧基的常见离去基团。 通过使用非极性溶剂回收式II的未反应的苯二酚,非极性溶剂为选自苯,甲苯,二甲苯,醚,己烷,石油醚,二氯甲烷和氯化物中的至少一种。