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
    • 방향족 불소 화합물의 제조방법
    • 芳香族氟化合物的制备方法
    • KR1020000020008A
    • 2000-04-15
    • KR1019980038405
    • 1998-09-17
    • 제린스키 인스티튜트 오브 오가닉 케미스트리한화종합화학 주식회사
    • 이호성박영준김민환네페도브올레그맷베예비치볼치코브니콜라이바실지크비치립킨드마리아보리소브나
    • C07C25/13
    • PURPOSE: A preparation method of ortho-difluorobenzene derivatives is provided which produces the title compound in high yield and 2-chloro-4,5-difluorobenzoic acid and 2-chloro-4,5-difluorobenzoyl chloride from the ortho-difluorobenzene derivatives at a low cost without passing through vinylfluorocyclobutane derivatives by simple manufacturing processes. CONSTITUTION: A process for making ortho-difluorobenzene derivatives(III) comprises(a) preparing a cyclohexene mixture by continuous gas-phase condensation reaction of chlorotrifluoroethylene(CTFE) and 1,3-diene at 390-480°C under atmospheric pressure in a flow reactor and removing halogenated hydrogen from the cyclohexene mixture at 40-150°C without an inorganic catalyst in the presence of alkali metal hydroxide and a phase transition catalyst. In formula, R1, R2, R3 are same or different H or lower alkyl. In the process(a), a mole ratio of chlorotrifluoroethylene(CTFE) to 1,3-diene is 1.5: 1-0.8: 1 and the reaction time is 0.2-30 sec.
    • 目的:提供邻二氟苯衍生物的制备方法,其以高产率产生标题化合物和2-氯-4,5-二氟苯甲酸和2-氯-4,5-二氟苯甲酰氯,由邻 - 二氟苯衍生物在 低成本而不通过简单制造工艺通过乙烯基氟环丁烷衍生物。 构成:制备邻二氟苯衍生物(III)的方法包括(a)在390-480℃,大气压下,在三氟氯乙烯(CTFE)和1,3-二烯烃的连续气相缩合反应中,在 在碱金属氢氧化物和相转移催化剂的存在下,在40-150℃下无需无机催化剂从环己烯混合物中除去卤代氢。 在式中,R 1,R 2,R 3是相同或不同的H或低级烷基。 在方法(a)中,三氟氯乙烯(CTFE)与1,3-二烯的摩尔比为1.5:1至0.8:1,反应时间为0.2-30秒。
    • 6. 发明授权
    • 지네올 및 그 유도체의 제조방법
    • 生产茴香酚及其衍生物的方法
    • KR100291522B1
    • 2001-08-07
    • KR1019970012307
    • 1997-04-03
    • 한화종합화학 주식회사
    • 이호성박영준김민환
    • C07D215/26C07D215/16
    • PURPOSE: Provided is a preparation method of 3-hydroxyquinoline based compound, jineol, having high anticancer activity and its derivative with high yield. CONSTITUTION: A method for preparation of jineol represented by the formula(1) and its derivative is composed of the following steps: (a) conversion of 8-hydroxy or alkoxyquinoline-3-carboxamide compound of the formula(6) into 3-amino-8-hydroxy or alkoxyquinoline compound of the formula(7); (b) reaction of the 3-amino-8-hydroxy or alkoxyquinoline compound, to obtain 3-hydroxy-8-hydroxy or alkoxyquinoline compound of the formula(8); and (c) reaction of the 3-hydroxy- 8-hydroxy or alkoxyquinoline compound to obtain quinoline based compound of the formula(1) or its derivative, wherein R1 is hydrogen or C1-C6 low alkyl group; R2 is selected from the group consisting of hydrogen, C1-C4 lower alkyl group, C1-C4 lower alkyl group potentially including phenyl group potentially having 1-3 substituents, C1-C6 lower alkyl group having hydroxy, C1-C5 alkoxy, acyloxy group, C5-C7 cycloalkyl group having substituent, C2-C7 lower acyl group, C2-C4 lower acyl group potentially including phenyl group potentially having 1-3 substituent, C2-C7 lower acyl group shaving hydroxy and C1-C5 alkoxy and acyloxy group, and C5-C7 cycloalkylcarbonyl group having 1-3 substituent.