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    • 6. 发明公开
    • 2-설포닐옥시-1-(4-하이드록시페닐)에탄올 유도체의 제조방법
    • 制备2-磺基-1-(4-羟基苯基)乙醇衍生物的方法
    • KR1020090023828A
    • 2009-03-06
    • KR1020070088892
    • 2007-09-03
    • 한국화학연구원
    • 이기인이종철이도민
    • C07C309/66C07C309/63
    • A method for preparing a 2-sulfonyloxy-1-(4-hydroxyphenyl)ethanol derivative is provided to secure high yield of 2-sulfonyloxy-1-(4-hydroxyphenyl)ethanol derivative having high optical activity. A method for preparing a 2-sulfonyloxy-1-(4-hydroxyphenyl)ethanol derivative represented by the formula 3 comprises asymmetric transfer hydrogenation of an alpha-sulfonyloxy acetophenone derivative in the presence of a hydrogen donor and a rhodium compound catalyst having a pentamethylcyclopentadienyl group. In the formula 3, X is a tosyloxy or mesyloxy group; and R^1 is hydrogen, a methyl group, a benzyl group, an acetyl group, a trimethylsilyl group, or a t- butyldimethylsilyl group.
    • 提供了制备2-磺酰氧基-1-(4-羟基苯基)乙醇衍生物的方法,以确保高产率的具有高光学活性的2-磺酰氧基-1-(4-羟基苯基)乙醇衍生物。 制备由式3表示的2-磺酰氧基-1-(4-羟基苯基)乙醇衍生物的方法包括在氢供体和具有五甲基环戊二烯基的铑化合物催化剂存在下的α-磺酰氧基苯乙酮衍生物的不对称转移氢化 。 在式3中,X是甲苯磺酰氧基或甲磺酰氧基; R 1是氢,甲基,苄基,乙酰基,三甲基甲硅烷基或叔丁基二甲基甲硅烷基。
    • 7. 发明授权
    • 광학활성 플루옥세틴 또는 노르플루옥세틴의 제조방법
    • 制备具有光活性的氟环丁酯或异氟维酮的方法
    • KR100852364B1
    • 2008-08-14
    • KR1020070050832
    • 2007-05-25
    • 한국화학연구원
    • 이기인이도민고수영강수미
    • C07C217/14C07C217/12C07C217/26
    • A method for preparing an optically active fluoxetine or norfluoxetine is provided to improve optical activity and the easiness of preparation by using an intermediate having a leaving group reacting easily with NaCN, NaN3, an amine, etc. A method for preparing an optically active fluoxetine or norfluoxetine represented by the formula 1a or 1b comprises the steps of reducing a compound represented by the formula 2 by asymmetric transfer hydrogenation in the presence of [R,R]-TsDPEN-RhCl-Cp or [S,S]-TsDPEN-RhCl-Cp and a hydrogen donor; reacting the obtained compound with a nitrile compound; reducing the obtained compound in the presence of BH3; and reacting the obtained compound with a 4-substituted benzotrifluoride compound, wherein R is H or a methyl group; and X is a leaving group selected from a tosyloxy (OTs) group and a mesyloxy (OMs) group.
    • 提供了制备光学活性氟西汀或诺氟西汀的方法,以提高光学活性和使用具有与NaCN,NaN 3,胺等容易反应的离去基团的中间体的制备容易性。一种制备光学活性氟西汀或 由式1a或1b表示的异氟西汀包括以下步骤:在[R,R] -TsDP-RhCl-Cp或[S,S] -TsDPEN-RhCl-CpC)存在下,通过不对称转移氢化还原式2表示的化合物, Cp和氢供体; 使所得化合物与腈化合物反应; 在BH3存在下还原得到的化合物; 并使所得化合物与4-取代三氟甲苯化合物反应,其中R为H或甲基; 并且X是选自甲苯磺酰氧基(OTs)基团和甲磺酰氧基(OMs)基团的离去基团。
    • 8. 发明授权
    • 광학 활성 2-설포닐옥시-1-페닐에탄올 유도체의 제조방법
    • 用于制备光学活性的2-磺酰基-1-苯乙醇衍生物的方法
    • KR100821567B1
    • 2008-04-15
    • KR1020060107059
    • 2006-11-01
    • 한국화학연구원
    • 이기인이도민
    • C07C309/66C07C309/62
    • C07C303/30B01J31/2295B01J2531/822C07B2200/07C07C303/40C07D319/20C07F7/1892C07C311/48C07C309/66C07C309/73
    • A method for preparing optically active 2-sulfonyloxy-1-phenylethanol derivatives is provided to obtain a target product with a high ee value, while preventing the problems occurring in the conventional processes, including the use of a harmful gas and irritative reactant. A method for preparing optically active 2-sulfonyloxy-1-phenylethanol derivatives represented by the following formula comprises the steps of: reacting (pentamethylcyclopentadienyl)rhodium(III) chloride dimer([Rh(C5Me5)Cl2]2) and 1,2-diphenylethylene-N-(p-toluenesulfonyl) diamine(TsDPEN) optionally with triethylamine in methylene chloride, and removing methylene chloride to obtain a rhodium compound catalyst having a pentamethylcyclopentadienyl group; and carrying out asymmetric reduction of an alpha-sulfonyloxy acetophenone compound in the presence of the rhodium catalyst and hydrogen donor. In formula, X is tosyloxy or mesyloxy; and R is a group selected from H, F, Cl, Br, OMe, OBn, NO2, CF3, Me, tert-Bu and CH2OMe bound in ortho-, meta- or para-position, or at least two R groups are fused to each other to form a benzene, dioxane or dioxolane ring(wherein Me= methyl, Bn= benzyl, and Bu- butyl).
    • 提供了制备光学活性2-磺酰氧基-1-苯基乙醇衍生物的方法,以获得具有高ee值的目标产物,同时防止在常规方法中发生的问题,包括使用有害气体和刺激性反应物。 制备由下式表示的光学活性2-磺酰氧基-1-苯基乙醇衍生物的方法包括以下步骤:使(五甲基环戊二烯基)氯化铑(III)二聚体([Rh(C 5 Me 5)Cl 2] 2)和1,2-二苯基乙烯 -N-(对甲苯磺酰基)二胺(TsDPEN),任选用三乙胺在二氯甲烷中,除去二氯甲烷,得到具有五甲基环戊二烯基的铑化合物催化剂; 并在铑催化剂和氢供体存在下进行α-磺酰氧基苯乙酮化合物的不对称还原。 在式中,X是甲苯磺酰氧基或甲磺酰氧基; 并且R是选自在邻位,间位或对位或至少两个R基中键合的H,F,Cl,Br,OMe,OBn,NO 2,CF 3,Me,叔-Bu和CH 2 OMe的基团, 彼此形成苯,二恶烷或二氧戊环(其中Me =甲基,Bn =苄基和Bu-丁基)。