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trans-5-ethyl-2-oxo-4-piperidineacetic acid ethyl ester

中文名称
——
中文别名
——
英文名称
trans-5-ethyl-2-oxo-4-piperidineacetic acid ethyl ester
英文别名
(+/-)-(5t-ethyl-2-oxo-[4r]piperidyl)-acetic acid ethyl ester;(+/-)-(5t-Aethyl-2-oxo-[4r]piperidyl)-essigsaeure-aethylester;ethyl 2-[(4R,5R)-5-ethyl-2-oxopiperidin-4-yl]acetate
trans-5-ethyl-2-oxo-4-piperidineacetic acid ethyl ester化学式
CAS
——
化学式
C11H19NO3
mdl
——
分子量
213.277
InChiKey
WWJSESKGBXNFSP-DTWKUNHWSA-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

计算性质

  • 辛醇/水分配系数(LogP):
    0.8
  • 重原子数:
    15
  • 可旋转键数:
    5
  • 环数:
    1.0
  • sp3杂化的碳原子比例:
    0.82
  • 拓扑面积:
    55.4
  • 氢给体数:
    1
  • 氢受体数:
    3

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

  • Quinolizidines—V
    作者:Tozo Fujii、Shigeyuki Yoshifuji
    DOI:10.1016/s0040-4020(01)83119-7
    日期:1980.1
    6-piperidone 10, the cis- and the trans-2-piperidone isomers 11 were the minor products. The successful conversion of the cis-lactam acid (−)-13 into the trans-lactam acid (+)-21 was effected on the basis of the fact that (±)-13 and (±)-21 are convertible to each other through cis-trans equilibration (13:21 = 33:67) at 180° in 75 min. When this isomerisation step was skipped in the above reaction sequence, the
    从cincholoiponponate [(+)- 4 ]的三环酯(-)- 30的合成中,已经开发出一种新的合成方法,可合成(-)-依美汀(1)和相关的Ipecac生物碱。金鸡纳生物碱金鸡宁(7)。涉及的步骤为(+)- 4 →(+)- 8 → 9 → 10 →(-)- 12- →(-)- 13 →(+)- 21 →(+)- 22 → 28 → 29 →(−)- 30。在Hg(OAc)2 -EDTA中氧化氨基醇9至6哌啶酮10,在顺式-和反式-2-哌啶酮的异构体11为次要产物。所述的转换成功的顺式β-内酰胺的酸( - ) - 13到反式β-内酰胺酸(+) - 21被实现的事实的基础上,即(±) - 13和(±) - 21可转换为彼此通过顺式-反式平衡(13:21 = 33:67)在180℃在75分钟。当按上述反应顺序跳过该异构化步骤时,2,3-顺式-三环(+)- 33获得了手性2,3-顺式-metetines的合成前体。
  • Quinolizidines. XIV. A racemic synthesis of 9-demethyltubulosine, an alkaloid isolated from Alangium vitiense.
    作者:MASASHI OHBA、MITSUKO HAYASHI、TOZO FUJII
    DOI:10.1248/cpb.33.3724
    日期:——
    The first total synthesis of the Alangium vitiense alkaloid 9-demethyltubulosine (1) has been achieved in the form of a racemic modification through a"lactim ether route, " which included the intermediates (±)-7, (±)-8, (±)-10, and (±)-9. The 1'α-Hisomers (±)-12 and (±)-11 were also produced through this synthetic route. On the other hand, the nonconformity of synthetic (±)-1 with another (-)-demethyltubulosine from A. lamarckii indicated the alternative 10-demethyl structure (2) to be correct for the A. lamarckii alkaloid. The assignments of the configuration at C-1' of (±)-1, (±)-9, (±)-11, and (±)-12 were based on four criteria, namely, the ratio of products from the catalytic reduction of (±)-10, thin-layer chromatographic mobility, and 1H and 13C nuclear magnetic resonance spectral features.
    通过 "内脂醚路线",首次以外消旋的形式合成了Alangium vitiense生物碱9-去甲基胞嘧啶(1),其中包括中间体(±)-7、(±)-8、(±)-10和(±)-9。通过这条合成路线还生产出了 1'α 异构体 (±)-12 和 (±)-11。另一方面,合成的(±)-1 与来自 A. lamarckii 的另一种 (-)-demethyltubulosine 不一致,这表明替代的 10-去甲基结构 (2) 对于 A. lamarckii 生物碱来说是正确的。(±)-1、(±)-9、(±)-11 和 (±)-12 的 C-1'构型的确定基于四个标准,即 (±)-10 催化还原产物的比例、薄层色谱流动性以及 1H 和 13C 核磁共振光谱特征。
  • Lactams. XXIII. Thermal cis-trans isomerization of the 5-ethyl-2-oxo-4-piperidineacetic acid system: Effect of an N-substituent.
    作者:TOZO FUJII、MASASHI OHBA、SHIGEYUKI YOSHIFUJI、SHIGEAKI AKIYAMA
    DOI:10.1248/cpb.33.1062
    日期:——
    In order to investigate the effect of an N-substituent on thermal cis-trans isomerization of the 5-ethyl-2-oxo-4-piperidineacetic acid system, the N-alkyl analogs (±)-1b, c and (±)-2b, c and the N-(2-arylethyl) analogs (-)-1f, g, i and (+)-2f, g, i were separately heated neat at 180°C, and the propress of their cis-trans isomerization reactions was followed by determining the isomer ratios in the reaction mixtures according to the previously reported C-13 nuclear magnetic resonance spectroscopic method. It has been found that in all cases the reaction comes to equilibrium within 28-130 min, when the cis and trans isomers exist in a ration of 1 : 2. These results together with those obtained previously with the analogs (±)-1a, d, e, (-)-1h, (±)-2a, d, e, and (+)-2h indicate that a higher and/or bulkier N-substituent tends to decrease the rate of cis-trans isomerization of the 5-ethyl-2-oxo-4-piperidineacetic acid system, which is a useful synthon for the synthesis of benzo-[a] quinolizidine-type Alangium alkaloids. Among the substrates used in the present equilibration study, (±)-1b, c and (±)-2b, c were prepared from the corresponding N-unsubstituted lactam esters (±)-3 and (±)-7 by the"lactim ether method."
    为了研究 N-取代基对 5-乙基-2-氧代-4-哌啶乙酸体系热顺反异构化的影响,将 N-烷基类似物 (±)-1b, c 和 (±)-2b, c 以及 N-(2-芳基乙基)类似物 (-)-1f, g, i 和 (+)-2f, g. i 分别在 180°C 下纯净加热,并根据之前报道的 C-13 核磁共振法测定反应混合物中的异构体比率,跟踪它们的顺反异构化反应的进展、i 分别在 180°C 温度下加热,并根据之前报告的 C-13 核磁共振光谱法确定反应混合物中的异构体比率,从而跟踪它们顺反异构化反应的进展情况。结果发现,在所有情况下,当顺式和反式异构体的比例为 1 : 2 时,反应在 28 至 130 分钟内达到平衡。这些结果以及之前在类似物 (±)-1a、d、e、(-)-1h、(±)-2a、d、e 和 (+)-2h 中获得的结果表明,较高和/或较宽松的 N 取代基往往会降低 5-乙基-2-氧代-4-哌啶乙酸体系的顺反异构化速率,而该体系是合成苯并-[a] 喹嗪类阿兰生物碱的有效合成物。在本平衡研究中使用的底物中,(±)-1b, c 和 (±)-2b, c 是通过 "乳醚法 "从相应的 N-未取代内酰胺酯 (±)-3 和 (±)-7 制备的。
  • Hirai, Yoshiro; Terada, Takashi; Yamazaki, Takao, Journal of the Chemical Society. Perkin transactions I, 1992, # 4, p. 517 - 524
    作者:Hirai, Yoshiro、Terada, Takashi、Yamazaki, Takao、Momose, Takefumi
    DOI:——
    日期:——
  • Ewstigneewa et al., Izvestiya Vysshikh Uchebnykh Zavedenii, Khimiya i Khimicheskaya Tekhnologiya, 1958, vol. 1, # 5, p. 46,50
    作者:Ewstigneewa et al.
    DOI:——
    日期:——
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