[R]-3-甲基戊-2-酮 | 57968-72-6

• 分子结构分类: 有机化合物 - 有机氧化合物
• 中文名称: [R]-3-甲基戊-2-酮
• 英文名称: (R)-Methyl-2-pentanon
• 英文别名: (R)-(-)-3-methylpentan-2-one；(S)-(-)-3-methylpentan-2-one；-3-methylpentan-2-one；3-methylpentan-2-one；(3R)-3-methylpentan-2-one
• CAS: 57968-72-6
• 化学式: C₆H₁₂O
• 分子量: 100.161
• InChiKey: UIHCLUNTQKBZGK-RXMQYKEDSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.3
• 重原子数：
  7
• 可旋转键数：
  2
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.83
• 拓扑面积：
  17.1
• 氢给体数：
  0
• 氢受体数：
  1

反应信息

• 作为产物：
  描述：

  (2SR,3RS)-3-甲基-4-戊基-2-醇 在 palladium on activated charcoal 氢气 、 pyridinium chlorochromate 作用下， 以 吡啶 、 苯 为溶剂， 反应 13.0h， 生成 [R]-3-甲基戊-2-酮
  参考文献：
  名称：

  Baker, Raymond; Boyes, R. Hugh O.; Broom, D. Mark P., Journal of the Chemical Society. Perkin transactions I, 1987, p. 1613 - 1622

  摘要：

  DOI：

文献信息

• Biocatalytic Racemization Employing TeSADH: Substrate Scope and Organic Solvent Compatibility for Dynamic Kinetic Resolution
  作者：Jarosław Popłoński、Tamara Reiter、Wolfgang Kroutil

  DOI：10.1002/cctc.201701395

  日期：2018.2.21

  Racemization in combination with a kinetic resolution is the base for a dynamic kinetic resolution (DKR). Biocatalytic racemization was successfully performed for a broad scope of sec‐alcohols by employing a single alcohol dehydrogenase (ADH) variant from Thermoanaerobacter pseudoethanolicus (formerly T. ethanolicus; TeSADH W110A I86A C295A). The catalyst employed as a lyophilized whole cell preparation

  外消旋结合动力学拆分是动态动力学拆分（DKR）的基础。通过使用伪乙醇热厌氧菌（以前称为T. alcoholicus； TeSADH W110A I86A C295A）的单一醇脱氢酶（ADH）变体，成功地对多种仲醇进行了生物催化消旋。该催化剂用作冻干全细胞制剂或无细胞提取物，可在微水或两相条件下耐受各种非水混溶性有机溶剂，其中环己烷和正己烷正己烷最适合。评估了将外消旋酶与酶动力学拆分相结合以实现整体双酶DKR的各种概念。概念验证表明，成功的DKR在水相中具有外消旋作用，在有机相中具有酰化作用。
• NOVEL NICOTINAMIDE DERIVATIVE OR SALT THEREOF
  申请人：FUJIFILM Corporation

  公开号：US20140309225A1

  公开（公告）日：2014-10-16

  The object of the present invention is to provide a compound and a pharmaceutical composition having excellent Syk inhibitory activity. According to the present invention, a nicotinamide derivative represented by the following formula (I) or a salt thereof is provided, wherein R 1 is a substituent represented by the following formula (II-1), (III-1), or (IV-1) (wherein R 3 , R 4 , R 5 , n, and X 1 have the same definitions as those described in the specification), and R 2 is a pyridyl, indazolyl, phenyl, pyrazolopyridyl, benzisoxazolyl, pyrimidinyl, or quinolyl group, each of which optionally has at least one substituent.

  本发明的目的是提供一种具有优异的Syk抑制活性的化合物和药物组合物。根据本发明，提供了由以下式（I）表示的烟酰胺衍生物或其盐， 其中 R 1 是由以下式（II-1）、（III-1）或（IV-1）表示的取代基 （其中R 3 、R 4 、R 5 、n和X 1 的定义与说明书中描述的相同），而R 2 是吡啶基、吲唑基、苯基、吡唑吡啶基、苯并异噁唑基、嘧啶基或喹啉基，每种基可选择地具有至少一个取代基。
• Identification, Characterization, and Application of Three Enoate Reductases from<i>Pseudomonas putida</i>in In Vitro Enzyme Cascade Reactions
  作者：Christin Peters、Regina Kölzsch、Maria Kadow、Lilly Skalden、Florian Rudroff、Marko D. Mihovilovic、Uwe T. Bornscheuer

  DOI：10.1002/cctc.201300957

  日期：2014.4

  Enoate reductases are versatile enzymes for the enantio‐ and regioselective addition of hydrogen to double bonds. We identified three EREDs (XenA, XenB, NemA) from Pseudomonas putida ATCC 17453 through a sequence motif search. In addition to cloning, functional expression, and biochemical characterization of these enzymes, the enoate reductases were also applied in enzyme cascade reactions in combination

  烯酸还原酶是多用途的酶，用于将氢对映和区域选择性加成至双键。通过序列基序搜索，我们从恶臭假单胞菌ATCC 17453中鉴定了三个ERED（XenA，XenB，NemA）。除了这些酶的克隆，功能表达和生化特性外，烯酸酯还原酶还与Baeyer-Villiger单加氧酶和醇脱氢酶结合用于酶的级联反应，以产生内酯。
• USE OF RUTHENIUM COMPLEXES FOR FORMATION AND/OR HYDROGENATION OF AMIDES AND RELATED CARBOXYLIC ACID DERIVATIVES
  申请人：Milstein David

  公开号：US20120253042A1

  公开（公告）日：2012-10-04

  A process for preparing amides by reacting a primary amine and a primary alcohol in the presence of a Ruthenium complex to generate the amide and molecular hydrogen. Primary amines are directly acylated by equimolar amounts of alcohols to produce amides and molecular hydrogen (the only byproduct) in high yields and high turnover numbers. Also disclosed are processes for hydrogenation of amides to alcohols and amines; hydrogenation of organic carbonates to alcohols; hydrogenation of carbamates or urea derivatives to alcohols and amines; amidation of esters; acylation of alcohols using esters; coupling of alcohols with water and a base to form carboxylic acids; dehydrogenation of beta-amino alcohols to form pyrazines and cyclic dipeptides; and dehydrogenation of secondary alcohols to ketones. These reactions are catalyzed by a Ruthenium complex which is based on a dearomatized PNN-type ligand of formula A1 or precursors thereof of formulae A2 or A3.

  一种制备酰胺的方法，包括在Ruthenium配合物的存在下，通过反应一种一级胺和一种一级醇生成酰胺和分子氢。直接用等摩尔量的醇对一级胺进行酰化反应，可以高产率、高周转数地生成酰胺和分子氢（唯一的副产物）。此外，还揭示了将酰胺氢化为醇和胺的方法；将有机碳酸酯氢化为醇的方法；将氨基甲酸酯或尿素衍生物氢化为醇和胺的方法；酯的酰胺化反应；使用酯对醇进行酰化反应；将醇与水和碱偶联形成羧酸；将β-氨基醇脱氢生成吡嗪和环肽；以及将二级醇脱氢生成酮的方法。这些反应由基于A1式或A2式或A3式的去芳香的PNN型配体的Ruthenium配合物催化。
• NOVEL RUTHENIUM COMPLEXES AND THEIR USES IN PROCESSES FOR FORMATION AND/OR HYDROGENATION OF ESTERS, AMIDES AND DERIVATIVES THEREOF
  申请人：Milstein David

  公开号：US20130281664A1

  公开（公告）日：2013-10-24

  The present invention relates to novel Ruthenium catalysts and related borohydride complexes, and the use of such catalysts, inter alia, for (1) hydrogenation of amides (including polyamides) to alcohols and amines; (2) preparing amides from alcohols with amines (including the preparation of polyamides (e.g., polypeptides) by reacting dialcohols and diamines and/or by polymerization of amino alcohols); (3) hydrogenation of esters to alcohols (including hydrogenation of cyclic esters (lactones) or cyclic di-esters (di-lactones) or polyesters); (4) hydrogenation of organic carbonates (including polycarbonates) to alcohols and hydrogenation of carbamates (including polycarbamates) or urea derivatives to alcohols and amines; (5) dehydrogenative coupling of alcohols to esters; (6) hydrogenation of secondary alcohols to ketones; (7) amidation of esters (i.e., synthesis of amides from esters and amines); (8) acylation of alcohols using esters; (9) coupling of alcohols with water to form carboxylic acids; and (10) dehydrogenation of beta-amino alcohols to form pyrazines. The present invention further relates to the novel uses of certain pyridine Ruthenium catalysts.

  本发明涉及新型钌催化剂和相关硼氢化物配合物，以及使用这些催化剂，包括：（1）将酰胺（包括聚酰胺）加氢为醇和胺；（2）用胺从醇制备酰胺（包括通过二元醇和二胺反应或氨基醇聚合制备聚酰胺（例如聚肽））；（3）将酯加氢为醇（包括环酯（内酯）或环二酯（二内酯）或聚酯的加氢）；（4）将有机碳酸酯（包括聚碳酸酯）加氢为醇和将氨基甲酸酯（包括聚氨基甲酸酯）或脲衍生物加氢为醇和胺；（5）醇的脱氢缩合成酯；（6）将二级醇加氢为酮；（7）酯的酰胺化（即从酯和胺合成酰胺）；（8）使用酯对醇进行酰化；（9）将醇与水偶联形成羧酸；以及（10）β-氨基醇的脱氢缩合形成吡嗪的新用途。本发明还涉及某些吡啶基钌催化剂的新用途。