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cis-Cyclopentan-1,2-carbolacton | 360794-29-2

中文名称
——
中文别名
——
英文名称
cis-Cyclopentan-1,2-carbolacton
英文别名
6-Oxabicyclo[3.2.0]heptan-7-one, cis-;(1S,5R)-6-oxabicyclo[3.2.0]heptan-7-one
cis-Cyclopentan-1,2-carbolacton化学式
CAS
360794-29-2
化学式
C6H8O2
mdl
——
分子量
112.128
InChiKey
JMXRBVILBUXYIU-CRCLSJGQSA-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:
    200.5±9.0 °C(Predicted)
  • 密度:
    1.208±0.06 g/cm3(Predicted)

计算性质

  • 辛醇/水分配系数(LogP):
    0.8
  • 重原子数:
    8
  • 可旋转键数:
    0
  • 环数:
    2.0
  • sp3杂化的碳原子比例:
    0.83
  • 拓扑面积:
    26.3
  • 氢给体数:
    0
  • 氢受体数:
    2

反应信息

  • 作为反应物:
    描述:
    cis-Cyclopentan-1,2-carbolacton 在 sodium azide 作用下, 以 N,N-二甲基甲酰胺 为溶剂, 反应 48.0h, 生成 (1S,2S)-2-Azido-cyclopentanecarboxylic acid
    参考文献:
    名称:
    通过酰基C-O和烷基C-O裂解形成双环β-内酯的亲核开口:多功能碳环核苷前体和受保护的反戊酸的催化,不对称合成
    摘要:
    通过我们实验室最近开发的分子内催化,不对称亲核试剂催化的醛醇内酯化反应,可得到多种与碳环融合的β-内酯。这些双环β-内酯在温和条件下会通过酰基C-O和烷基C-O键断裂而容易地断裂。酰基C–O键与羟胺亲核试剂的裂解在环境温度下进行,而还原性裂解可通过铝和硼还原剂轻松完成。另外,用各种亲核试剂进行的烷基C-O裂解会导致多种反式-β-取代的环戊烷羧酸。这些转化的效用通过保护的(1 S,2 S)-反戊酸和通用二醇,用于碳环核苷的合成。
    DOI:
    10.1016/s0040-4020(02)00703-2
  • 作为产物:
    参考文献:
    名称:
    Bicyclic β-Lactones via Intramolecular NCAL Reactions with Cinchona Alkaloids: Effect of the C9-Substituent on Enantioselectivity and Catalyst Conformation
    摘要:
    C9-酰化金鸡纳生物碱可促进分子内亲核催化醛内酯化(NCAL)反应,从而生成具有光学活性的双环δ-内酯。本文提出了这一催化不对称过程的机理方案。在奎尼丁 C9 位置的各种酯、氨基甲酸酯和碳酸酯中,只观察到对映体选择性的微小变化。结合耦合常数(3 J H8、H9)和 nOe 数据,我们为这些衍生物确定了主要的溶液构象。有趣的是,一种硬度更高的奎尼丁衍生物在对映体选择的意义上出现了完全逆转。
    DOI:
    10.1055/s-2001-16746
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文献信息

  • Asymmetric Synthesis of Bicyclic β-Lactones via the Intramolecular, Nucleophile-Catalyzed Aldol Lactonization:  Improved Efficiency and Expanded Scope
    作者:Seong Ho Oh、Guillermo S. Cortez、Daniel Romo
    DOI:10.1021/jo050024u
    日期:2005.4.1
    The intramolecular, nucleophile-catalyzed, aldol lactonization (NCAL) process merges catalytic, asymmetric carbocycle synthesis with β-lactone synthesis. The application of modified Mukaiyama reagents to this process led to greatly improved conversion and efficiency (70−82% yield) and shorter reaction times with no diminution of enantioselectivity (91−98% ee). The process was extended to several new
    分子内,亲核试剂催化的醛醇内酯化(NCAL)工艺将催化的不对称碳环化合物合成与β-内酯合成相结合。在此过程中使用改良的Mukaiyama试剂可大大提高转化率和效率(70-82%的收率),缩短反应时间,而对映选择性不会降低(91-98%ee)。该工艺扩展到了几种新的醛酸底物,从而产生了新的双环-β-内酯。该方法独特地提供了β-内酯融合的环戊烷和环己烷,可用于进一步转化。
  • Bicyclic β-Lactones via Intramolecular NCAL Reactions with Cinchona Alkaloids: Effect of the C9-Substituent on Enantioselectivity and Catalyst Conformation
    作者:Guillermo S. Cortez、Seong Ho Oh、Daniel Romo
    DOI:10.1055/s-2001-16746
    日期:——
    C9-Acylated cinchona alkaloids promote an intramolecular, nucleophile-catalyzed aldol-lactonization (NCAL) reaction leading to optically active bicyclic β-lactones. A mechanistic scheme is proposed for this catalytic, asymmetric process. Only small variations in enantioselectivity were observed for a variety of esters, a carbamate, and a carbonate at the C9 position of quinidine. A combination of coupling constants (3 J H8,H9) and nOe data was used to assign predominant solution conformations for these derivatives. Interestingly, a more rigid quinidine derivative gave a complete reversal in the sense of enantioselection.
    C9-酰化金鸡纳生物碱可促进分子内亲核催化醛内酯化(NCAL)反应,从而生成具有光学活性的双环δ-内酯。本文提出了这一催化不对称过程的机理方案。在奎尼丁 C9 位置的各种酯、氨基甲酸酯和碳酸酯中,只观察到对映体选择性的微小变化。结合耦合常数(3 J H8、H9)和 nOe 数据,我们为这些衍生物确定了主要的溶液构象。有趣的是,一种硬度更高的奎尼丁衍生物在对映体选择的意义上出现了完全逆转。
  • Intramolecular, Nucleophile-Catalyzed Aldol-Lactonization (NCAL) Reactions:  Catalytic, Asymmetric Synthesis of Bicyclic β-Lactones
    作者:Guillermo S. Cortez、Reginald L. Tennyson、Daniel Romo
    DOI:10.1021/ja016134+
    日期:2001.8.1
  • Double Diastereoselective, Nucleophile-Catalyzed Aldol Lactonizations (NCAL) Leading to β-Lactone Fused Carbocycles and Extensions to β-Lactone Fused Tetrahydrofurans
    作者:Kay A. Morris、Kevin M. Arendt、Seong Ho Oh、Daniel Romo
    DOI:10.1021/ol101388h
    日期:2010.9.3
    A double diastereoselective variant of the nucleophile-catalyzed aldol lactonization (NCAL) process is described. This strategy delivers beta-lactone-fused carbocycles with good to excellent diastereoselectivities using cinchona alkaloid catalysts with enantioenriched aldehyde acids, which gave low diastereoselectivity based on substrate control alone. beta-Lactone-fused tetrahydrofurans are also prepared for the first time via the NCAL process; however, diastereoselectivity was only modestly improved when applying double diastereodifferentiation to these systems.
  • Nucleophilic openings of bicyclic β-lactones via acyl C–O and alkyl C–O cleavage: catalytic, asymmetric synthesis of a versatile, carbocyclic nucleoside precursor and protected transpentacin
    作者:Yasuno Yokota、Guillermo S Cortez、Daniel Romo
    DOI:10.1016/s0040-4020(02)00703-2
    日期:2002.8
    recently developed in our laboratory. These bicyclic β-lactones undergo facile ring cleavage under mild conditions via both acyl C–O and alkyl C–O bond cleavage. Cleavage of the acyl C–O bond with hydroxylamine nucleophiles proceeds at ambient temperature and reductive cleavage is readily accomplished with aluminum and boron reducing agents. Alternatively, alkyl C–O cleavage with various nucleophiles leads
    通过我们实验室最近开发的分子内催化,不对称亲核试剂催化的醛醇内酯化反应,可得到多种与碳环融合的β-内酯。这些双环β-内酯在温和条件下会通过酰基C-O和烷基C-O键断裂而容易地断裂。酰基C–O键与羟胺亲核试剂的裂解在环境温度下进行,而还原性裂解可通过铝和硼还原剂轻松完成。另外,用各种亲核试剂进行的烷基C-O裂解会导致多种反式-β-取代的环戊烷羧酸。这些转化的效用通过保护的(1 S,2 S)-反戊酸和通用二醇,用于碳环核苷的合成。
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