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(R)-(+)-4-tert-Butoxycyclpent-2-enone | 116262-05-6

中文名称
——
中文别名
——
英文名称
(R)-(+)-4-tert-Butoxycyclpent-2-enone
英文别名
(R)-(+)-4-t-butoxycyclopent-2-enone;(4R)-4-[(2-methylpropan-2-yl)oxy]cyclopent-2-en-1-one
(R)-(+)-4-tert-Butoxycyclpent-2-enone化学式
CAS
116262-05-6
化学式
C9H14O2
mdl
——
分子量
154.209
InChiKey
BKXMCMSBKYTEIA-QMMMGPOBSA-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

  • 沸点:
    228.8±39.0 °C(Predicted)
  • 密度:
    0.98±0.1 g/cm3(Predicted)

计算性质

  • 辛醇/水分配系数(LogP):
    0.9
  • 重原子数:
    11
  • 可旋转键数:
    2
  • 环数:
    1.0
  • sp3杂化的碳原子比例:
    0.67
  • 拓扑面积:
    26.3
  • 氢给体数:
    0
  • 氢受体数:
    2

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
  • 下游产品
    中文名称 英文名称 CAS号 化学式 分子量

反应信息

点击查看最新优质反应信息

文献信息

  • Enantiocontrolled construction of sistodiolynne, an unusual polyketide from the wood-decay fungus Sistrema raduloides
    作者:Tsutomu Sugahara、Kunio Ogasawara
    DOI:10.1039/a700186j
    日期:——
    Sistodiolynne, an unusual polyketide isolated from the wood decay fungus Sistorema raduloides, has been constructed stereoselectively from a chiral cyclopentenol building block to verify the proposed structure.
    来自木质腐朽真菌Sistorema raduloides的非典型聚酮类物质Sistodiolynne,以手性环戊烯醇为构建单元,经立体选择性合成,以验证所提出的结构。
  • A new resolution procedure for the preparation of both (R)-(+)- and (S)-(-)-4-tert-butoxycyclopent-2-enone from racemic 4-tert-butoxycyclopent-2-enone and conversion of (R)-(+)-4-tert-butoxycyclopent-2-enone into (R)-(+)-4-acetoxycyclopent-2-enone. A new method for the determination of the enantiomeric purities of the resolved enones
    作者:Bart M. Eschler、Richard K. Haynes、Michael D. Ironside、Steve Kremmydas、Damon D. Ridley、Trevor W. Hambley
    DOI:10.1021/jo00015a035
    日期:1991.7
    (1S)-(-)-10-Mercaptoisoborneol undergoes conjugate addition to (+/-)-4-tert-butoxycyclopent-2-enone in methanol containing N,N,N',N'-tetramethylethylenediamine to give a 1:1 mixture of diastereomers of 3-tert-butoxy-4-[[(exo-2'-hydroxy-7',7'-dimethylbicyclo[2.2.1]heptanyl)methyl]thio]cyclopentanone in 93-95% yield. The mixture is converted by m-chloroperbenzoic acid into the corresponding sulfoxide mixture. The (3R,4R,R(S))-sulfoxide isomer, whose absolute configuration has been determined by X-ray crystallography, crystallizes cleanly from this mixture in an enantiomeric yield of 76% from the corresponding sulfide. It is decomposed on silica gel to generate (R)-(+)-4-tert-butoxycyclopent-2-enone, with an enantiomeric purity of greater-than-or-equal-to 99.9% in 92% yield from the sulfoxide, and 10-thiodiisobornyl 10'-sulfoxide. Similarly, the (S)-(-)-enone is prepared from (1R)-(+)-10-mercaptoisoborneol. The (+/-)- and the (R)-(+)-enone, respectively, are converted by a catalytic amount of FeCl3 in acetic anhydride into (+/-)- and (R)-(+)-4-acetoxycyclopent-2-enone (with an enantiomeric purity of greater-than-or-equal-to 99.9%) in 80% yield. The enantiomeric purity of the products was assessed through their treatment with (-)-10-mercaptoisoborneol and analysis of the adducts by HPLC and 400-MHz H-1 NMR spectroscopy.
    (1S)-(-)-10-巯基异冰片在含有N,N,N',N'-四甲基乙二胺的甲醇中与(+/-)-4-叔丁氧基环戊-2-烯酮发生共轭加成,得到3-叔丁氧基-4-[[(exo-2'-羟基-7',7'-二甲基双环[2.2.1]庚烷基)甲基]硫代]环戊酮的两种异构体(1:1比例)的混合物,收率93-95%。该混合物在过氯苯甲酸作用下转化为相应的硫氧化物混合物。通过X射线晶体学确定了绝对构型的(3R,4R,R(S))-硫氧化物异构体从该混合物中以76%的手性收率析出。在二氧化硅胶上分解此硫氧化物可得到(R)-(+)-4-叔丁氧基环戊-2-烯酮(手性纯度≥99.9%),以及10-硫二异冰片-10'-硫氧化物,产率为92%。同样,(S)-(-)-烯酮可由(1R)-(+)-10-巯基异冰片制得。在醋酐中添加催化量的FeCl3,(±)-和(R)-(+)-烯酮分别转化为(+/-)-和(R)-(+)-4-乙酰氧基环戊-2-烯酮(手性纯度≥99.9%),收率为80%。产物的手性纯度通过与(-)-10-巯基异冰片的处理及其加成物的HPLC和400 MHz H-1 NMR光谱分析确定。
  • A simple route to (R)-(+)-4-t-butoxycyclopent-2-enone
    作者:Bart M. Eschler、Richard K. Haynes、Steve Kremmydas、Damon D. Ridley
    DOI:10.1039/c39880000137
    日期:——
    ()-10-Mercaptoisoborneol undergoes conjugate addition to racemic 4-t-butoxycyclopent-2-enone in methanol in the presence of a catalytic amount of N,N,N′,N′-tetramethylethylenediamine to give a 1 : 1 mixture of the sulphide adducts, which with m-chloroperbenzoic acid in ether at 70 °C is converted into a mixture of the corresponding sulphoxides; a single diastereoisomer of one of the sulphoxides
    (–)-10-巯基异冰片醇在催化量的N,N,N ',N'-四甲基乙二胺的存在下于甲醇中外消旋4-叔丁氧基环戊-2-烯酮进行共轭加成反应,制得1:1的混合物硫化物的加合物,其与米在醚氯过苯甲酸- 70℃下转变成相应的亚砜的混合物; 通过结晶容易获得亚砜之一的单一非对映异构体,并且通过硅胶将非对映异构体转化为(R)-(+)-4-叔丁氧基环戊-2-烯酮(1)。
  • ESCHLER, BART M.;HAYNES, RICHARD K.;KREMMYDAS, STEVE;RIDLEY, DAMON D., J. CHEM. SOC. CHEM. COMMUN.,(1988) N 2, 137-138
    作者:ESCHLER, BART M.、HAYNES, RICHARD K.、KREMMYDAS, STEVE、RIDLEY, DAMON D.
    DOI:——
    日期:——
  • A New Chiral Route to Optically Pure 3-Oxodicyclopentadiene: A Versatile Chiral Cyclopentadienone Synthon, via Contra-Steric Diels-Alder Reaction
    作者:Tsutomu Sugahara、Yukari Kuroyanagi、Kunio Ogasawara
    DOI:10.1055/s-1996-4342
    日期:1996.9
    Optically pure oxodicyclopentadiene (KDP) has been prepared in both enantiomeric forms from racemic 4-tert-butoxycyclopent-2-en-1-one in three ways starting from 4-tert-butoxycyclopent-2-en-1-one involving contra-steric Diels-Alder reaction and lipase-mediated enantiospecific kinetic transesterification as key steps.
    光学纯的二环戊二烯酮(KDP)已通过三种方法从外消旋的4-叔丁氧基环戊-2-烯-1-酮制备出两种对映异构体形式,这些方法涉及反位立体选择性的Diels-Alder反应和脂酶介导的对映选择性动力学转酯化反应作为关键步骤。
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