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(S)-3-ethylcyclopentanone | 10264-55-8

物质功能分类

中文名称
——
中文别名
——
英文名称
(S)-3-ethylcyclopentanone
英文别名
(S)-(-)-3-ethylcyclopentan-1-one;(S)-(-)-3-ethylcyclopentanone;3-(S)-ethyl-cyclopentan-1-one;(S)-3-ethylcyclopentan-1-one;(-)-3-ethylcyclopentanone;(3S)-3-Ethylcyclopentanone;(3S)-3-ethylcyclopentan-1-one
(S)-3-ethylcyclopentanone化学式
CAS
10264-55-8;86505-42-2;86505-49-9
化学式
C7H12O
mdl
——
分子量
112.172
InChiKey
XERALSLWOPMNRJ-LURJTMIESA-N
BEILSTEIN
——
EINECS
——
  • 物化性质
  • 计算性质
  • ADMET
  • 安全信息
  • SDS
  • 制备方法与用途
  • 上下游信息
  • 反应信息
  • 文献信息
  • 表征谱图
  • 同类化合物
  • 相关功能分类
  • 相关结构分类

物化性质

  • 熔点:
    150 °C
  • 沸点:
    171℃
  • 密度:
    0.9015 g/cm3(Temp: 425 °C)
  • 闪点:
    31°(88°F)
  • LogP:
    1.220 (est)
  • 稳定性/保质期:
    - 遵照规格使用和储存则不会分解。 - 存在于烟气中。

计算性质

  • 辛醇/水分配系数(LogP):
    1.4
  • 重原子数:
    8
  • 可旋转键数:
    1
  • 环数:
    1.0
  • sp3杂化的碳原子比例:
    0.86
  • 拓扑面积:
    17.1
  • 氢给体数:
    0
  • 氢受体数:
    1

安全信息

  • 危险等级:
    3
  • 安全说明:
    S16
  • 危险类别码:
    R10
  • 海关编码:
    2914299000
  • 包装等级:
    III
  • 危险品运输编号:
    UN 1224
  • 储存条件:
    请将密封于阴凉干燥处。

SDS

SDS:aaf839009be60b4e679724420bf99d7d
查看

制备方法与用途

3-乙基环戊酮可用作医药合成中间体。若吸入该物质,请将患者移至空气新鲜处;如皮肤接触,脱去污染衣物,用肥皂水和清水彻底清洗皮肤,并在不适时就医;如眼睛接触,分开眼睑,用流动清水或生理盐水冲洗,并立即就医;如吞食,应立即漱口,禁止催吐,并及时就医。

上下游信息

  • 上游原料
    中文名称 英文名称 CAS号 化学式 分子量

反应信息

  • 作为反应物:
    描述:
    (S)-3-ethylcyclopentanone 在 sodium tetrahydroborate 、 1,4-dihydronicotinamide adenine dinucleotide 、 horse liver alcohol dehydrogenase 、 (±)-α-甲氧基-α-(三氟甲基)苯乙酸 作用下, 以 乙醇 为溶剂, 生成 (R)-3,3,3-Trifluoro-2-methoxy-2-phenyl-propionic acid (1S,3R)-3-ethyl-cyclopentyl ester
    参考文献:
    名称:
    Use of shift reagent with MTPA derivatives in19F NMR spectrocopy: IV—Determination of enantiomeric composition for a variety of secondary cycloalkanols. A survey
    摘要:
    AbstractChiral secondary cycloalkanols (monocyclic alcohols) are derivatized to the corresponding (R)‐α‐methoxy‐α‐trifluoromethyl‐α‐phenylacetic acid [(R)‐MTPA] esters and analysed by 19F NMR in the presence of tris(6,6,7,7,8,8,8‐heptafluoro‐2,2‐dimethyl‐3,5‐octanedionato) europium(III) [Eu(fod)3]. Using this method the enantiomeric composition can be measured for several cyclopentanols, cyclohexanols and cycloheptanols, with a variety of substitution patterns. It is shown that a mixture of four stereoisomeric cycloalkanols, such as cis and trans disubstituted alcohols, can be analysed simultaneously.
    DOI:
    10.1002/omr.1270210609
  • 作为产物:
    描述:
    3-乙氧基-2-环戊烯酮 在 valine tert-butyl ester (R)-TRIP salt 二氢吡啶 作用下, 以 四氢呋喃乙醚二丁醚 为溶剂, 反应 82.0h, 生成 (S)-3-ethylcyclopentanone
    参考文献:
    名称:
    α,β-不饱和酮的高度对映选择性转移氢化
    摘要:
    我们描述了一种高效且高度对映选择性的 α,β-不饱和酮的共轭转移氢化,该氢化由缬氨酸叔丁酯制成的盐和最近推出的强手性磷酸催化剂 (TRIP) 催化。
    DOI:
    10.1021/ja065708d
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文献信息

  • ORGANIC SALTS AND METHOD FOR PRODUCING CHIRAL ORGANIC COMPOUNDS
    申请人:List Benjamin
    公开号:US20090030216A1
    公开(公告)日:2009-01-29
    The invention relates to a method for producing chiral organic compounds by asymmetric catalysis, using ionic catalysts comprising a chiral catalyst anion. The claimed method is suitable for reactions which are carried out over cationic intermediate stages, such as iminium ions or acyl pyridinium ions. The invention enables the production of chiral compounds with high ee values, that until now could only be obtained by means of costly purification methods.
    该发明涉及一种通过不对称催化制备手性有机化合物的方法,使用包括手性催化剂阴离子的离子催化剂。所述方法适用于在阳离子中间体阶段进行的反应,例如亚胺离子或酰基吡啶离子。该发明实现了具有高ee值的手性化合物的生产,直到现在只能通过昂贵的纯化方法获得。
  • Enantioselective Copper-Catalyzed 1,4-Addition of Dialkylzincs to Enones Followed by Trapping with Allyl Iodide Derivatives
    作者:Kenjiro Kawamura、Hitomi Fukuzawa、Masahiko Hayashi
    DOI:10.1246/bcsj.20110035
    日期:2011.6.15
    Enantioselective copper-catalyzed 1,4-addition of dialkylzincs to enones proceeded in the presence of 0.1 mol % of Cu(OTf)2 and 0.25 mol % of an N,N,P-ligand containing a quinoline moiety to afford...
    在 0.1 mol% 的 Cu(OTf)2 和 0.25 mol% 的含有喹啉部分的 N,N,P-配体存在下,对映选择性铜催化二烷基锌与烯酮的 1,4-加成反应,得到...
  • Hydroxy-amide Functionalized Azolium Salts for Cu-Catalyzed Asymmetric Conjugate Addition: Stereocontrol Based on Ligand Structure and Copper Precatalyst
    作者:Naoatsu Shibata、Misato Yoshimura、Haruka Yamada、Ryuichi Arakawa、Satoshi Sakaguchi
    DOI:10.1021/jo300472r
    日期:2012.4.20
    designed and synthesized for Cu-catalyzed asymmetric conjugate addition reaction. The (CH2)2-bridged hydroxy-amide functionalized azolium ligand precursors 2, in addition to the previously reported CH2-bridged azolium salts 1, have been prepared from readily available enantiopure β-amino alcohols. The combination of a Cu species with 1 or 2 efficiently promoted the 1,4-addition reaction of cyclic enones
    已经设计并合成了一系列羟基酰胺官能化的偶氮盐,用于铜催化的不对称共轭加成反应。除了先前报道的CH 2-桥连的氮鎓盐1之外,还已经由容易获得的对映纯β-氨基醇制备了(CH 2)2-桥联的羟基酰胺官能化的azo鎓配体前体2。Cu种类与1或2的组合有效地促进了环状烯酮与二烷基锌的1,4-加成反应。例如,在催化量的Cu(OTf)存在下,2-cyclohepten-1-one(17)与Bu 2 Zn的反应图2和图1给出了(S)-3-丁基环庚酮(20),产率为99%,ee为96%。在另一方面,当反应物的Cu(OTF)的影响下,进行2具有组合2,(- [R )- 20优先于(小号) - 20在98%的产率和80%的ee值获得。以这种方式,通过控制手性配体的结构来切换对映异构性。另外,通过将具有相同配体的Cu预催化剂从Cu(OTf)2改变为Cu(acac)2也可以实现对映选择性的逆转。Cu(acac)2与CH的结合17与Bu
  • Cyclic ketones, their preparation and their use in the synthesis of amino acids
    申请人:——
    公开号:US20030187296A1
    公开(公告)日:2003-10-02
    A method is provided for making an enantiomerically pure of the formula: in which R and R′ represent C1?C10 alkyl, C2?C10 alkenyl or C3?C10 cycloalkyl and the wedges signify (S)- or (R)-stereochemistry, the substituents in compound (II) being trans. Conjugate addition is carried out between an organometallic nucleophile that provides a group R as defined above and (R)-4-acetoxycyclopent-2-en-1-one, (S)-4-acetoxycyclopent-2-en-1-one or a similar compound in which acetoxy is replaced by another leaving group to give, e.g. in the case of the acetoxy compound, a trans 3,4-disubstituted addition product of formula III or IV; The acetyl group is eliminated from the addition product to give an (R)- or (S)-4-alkyl or 4-alkenyl cyclopent-2-en-1-one the compound of formula is then to be hydrogenated to give a cyclopentanone of formula (I) or conjugate addition of a second organometallic nucleophile that provides a group R′ as defined above to the compound of the above formula may be carried out to give a trans 3,4-disubstituted addition product of formula (II). One of the above compounds may be converted e.g. via an intermediate (XV)-(XVIII) (in which the substituents R and R′ and the wedges have the meanings indicated above) to a gabapentin analogue of one of the formulae shown below: in which the substituents R and R′ and the wedges also have the meanings indicated above. 1 2
    提供一种制备公式的对映纯物质的方法:其中R和R′代表C1-C10烷基、C2-C10烯基或C3-C10环烷基,楔形符号表示(S)-或(R)-立体化学,化合物(II)中的取代基为反式。在有机金属亲核试剂和(R)-4-乙酰氧基环戊-2-烯-1-酮、(S)-4-乙酰氧基环戊-2-烯-1-酮或类似化合物之间进行共轭加成,其中乙酰氧基被另一个离去基取代,例如在乙酰氧基化合物的情况下,得到公式III或IV的反式3,4-二取代加成产物;从加成产物中消除乙酰基,得到(R)-或(S)-4-烷基或4-烯基环戊-2-烯-1-酮,然后将该化合物氢化,得到公式(I)的环戊酮,或者对上述公式的化合物进行第二次有机金属亲核试剂的共轭加成,得到公式(II)的反式3,4-二取代加成产物。上述化合物之一可以通过中间体(XV)-(XVIII)(其中取代基R和R′以及楔形符号具有上述所示的含义)转化为下面所示的公式之一的加巴喷丁类似物:其中取代基R和R′以及楔形符号也具有上述所示的含义。
  • Enantioselectivity switch in copper-catalyzed conjugate addition reactions under the influence of a chiral N-heterocyclic carbene–silver complex
    作者:Keitaro Matsumoto、Yuki Nakano、Naoatsu Shibata、Satoshi Sakaguchi
    DOI:10.1039/c5ra25926f
    日期:——
    asymmetric 1,4-addition of Et2Zn to 2-cyclohexen-1-one using a Cu(I) salt/N-heterocyclic carbene (NHC)–Ag complex catalytic system afforded optically active 3-ethylcyclohexanone. The reversal of enantioselectivity using the same catalytic system was achieved by changing the order of the addition of substrates.
    使用Cu(I)盐/ N-杂环卡宾(NHC)-Ag复合催化体系将Et 2 Zn不对称地1,4-加成到2-cyclohexen-1-one,提供了光学活性的3-乙基环己酮。通过改变底物的添加顺序,可以使用相同的催化系统逆转对映选择性。
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