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
    • 13. 发明授权
    • Enzymatic reduction for producing optically active alcohols
    • 用于制备光学活性醇的酶还原
    • US07888080B2
    • 2011-02-15
    • US12158390
    • 2006-12-13
    • Rainer StürmerMaria KeβelerBernhard HauerThomas FriedrichMichael BreuerHartwig Schröder
    • Rainer StürmerMaria KeβelerBernhard HauerThomas FriedrichMichael BreuerHartwig Schröder
    • C12P17/00C12N9/14
    • C07D333/16C07D333/20C12P7/02C12P11/00C12P41/002
    • A process for preparing optically active alkanols of the formula I in which n is an integer from 0 to 5; Cyc is an optionally substituted, mono- or polynuclear, saturated or unsaturated, carbocyclic or heterocyclic ring, and R1 is halogen, SH, OH, NO2, NR2R3 or NR2R3R4+X−, with R2, R3 and R4 independently of one another being hydrogen or a lower alkyl or lower alkoxy radical and X− being a counterion, which process comprises incubating in a medium comprising alkanone of the formula II  in which n, Cyc and R1 are as defined above, an enzyme having a polypeptide sequence (i) SEQ ID NO: 1 or (ii) in which, compared to SEQ ID NO:1, up to 25% of the amino acid radicals have been altered by deletion, insertion, substitution or a combination thereof and which retains at least 50% of the enzymic activity of SEQ ID NO:1, with the compound of the formula II being enzymically reduced to give the compound of the formula I, and isolating the product formed.
    • 一种制备式I的光学活性链烷醇的方法,其中n为0至5的整数; Cyc是任选取代的单或多核饱和或不饱和的碳环或杂环,R1是卤素,SH,OH,NO2,NR2R3或NR2R3R4 + X-,R2,R3和R4彼此独立地是氢 或低级烷基或低级烷氧基,X是抗衡离子,该方法包括在包含式II的烷酮的培养基中孵育,其中n,Cyc和R 1如上定义,具有多肽序列(i)SEQ ID NO: SEQ ID NO:1或(ii)其中与SEQ ID NO:1相比,通过缺失,插入,取代或其组合改变多达25%的氨基酸基团,并且其保留至少50%的 酶活性为SEQ ID NO:1,其中式II化合物被酶还原,得到式I化合物,并分离形成的产物。
    • 18. 发明授权
    • Process for preparing urethane-containing (meth)acrylic esters
    • 制备含氨基甲酸酯(甲基)丙烯酸酯的方法
    • US08399225B2
    • 2013-03-19
    • US12776670
    • 2010-05-10
    • Rainer StürmerDejana DrewBernhard HauerJürgen DäuwelUwe Meisenburg
    • Rainer StürmerDejana DrewBernhard HauerJürgen DäuwelUwe Meisenburg
    • C12P7/60
    • C12P13/02C12P7/62
    • The invention relates to a process for preparing urethane-containing acrylic- and (meth)acrylic esters by reacting a urethane-containing alcohol with a reactant acrylic- or (meth)acrylic ester of a saturated alcohol in the presence of at least one polymerization inhibitor and an enzyme as a catalyst within a reactor, wherein the saturated alcohol released in the process and optionally an entraining agent form an azeotrope with an excess of the reactant (meth)acrylic ester, such that the azeotrope is removed by distillation under reduced pressure and at least one substream from the bottom of the reactor is circulated through the top of the distillation column. Using this process, urethane-containing acrylic- and (meth)acrylic esters are prepared in high yields and high purities under mild conditions from economically obtainable reactants with no significant polymer formation.
    • 本发明涉及通过使含氨基甲酸酯的醇与饱和醇的反应性丙烯酸或(甲基)丙烯酸酯在至少一种聚合抑制剂的存在下反应来制备含氨基甲酸酯的丙烯酸和(甲基)丙烯酸酯的方法 和作为反应器内的催化剂的酶,其中在该方法中释放的饱和醇和任选的夹带剂与过量的反应物(甲基)丙烯酸酯形成共沸物,使得通过减压蒸馏除去共沸物, 来自反应器底部的至少一个子流通过蒸馏塔的顶部循环。 使用该方法,在温和条件下从经济可获得的反应物中以高产率和高纯度制备含氨基甲酸酯的丙烯酸酯和(甲基)丙烯酸酯,没有显着的聚合物形成。