tert-butyl 3-cyclohexyl-3-oxopropanoate | 128917-50-0

• 分子结构分类: 有机化合物 - 有机酸及其衍生物 - 酮酸及其衍生物
• 英文名称: tert-butyl 3-cyclohexyl-3-oxopropanoate
• 英文别名: tert-Butyl b-oxo-cyclohexanepropanoate
• CAS: 128917-50-0
• 化学式: C₁₃H₂₂O₃
• 分子量: 226.316
• InChiKey: PDMYKIIUCQGUMS-UHFFFAOYSA-N

物化性质

• 沸点：
  298.5±13.0 °C(Predicted)
• 密度：
  1.011±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  3
• 重原子数：
  16
• 可旋转键数：
  5
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.85
• 拓扑面积：
  43.4
• 氢给体数：
  0
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  tert-butyl 3-cyclohexyl-3-oxopropanoate 在 sodium hydride 、 Selectfluor 作用下， 反应 7.5h， 生成 2-Cyclohexanecarbonyl-2-fluoro-succinic acid 1-tert-butyl ester 4-ethyl ester
  参考文献：
  名称：

  A short, efficient synthesis of monofluoro ketomethylene peptide isostere core units

  摘要：

  Monofluoro ketomethylene peptide isosteres can be prepared by a four step sequence from carboxylic acids in satisfactory overall yields (30-60%). Fluorine is introduced by electrophilic fluorination of a beta-ketoester enolate with SelectFluor(TM). (C) 1997 Elsevier Science Ltd.

  DOI：

  10.1016/s0040-4039(97)10282-9
• 作为产物：
  描述：

  环己甲酰氯 在 吡啶 作用下， 以 二氯甲烷 、 甲苯 为溶剂， 反应 7.0h， 生成 tert-butyl 3-cyclohexyl-3-oxopropanoate
  参考文献：
  名称：

  Decarboxylative elimination of enol triflates as a general synthesis of acetylenes

  摘要：

  β-酮酯的多种烯醇三氟甲磺酸酯 11 的去羧基消除反应生成乙炔 12。

  DOI：

  10.1039/a901921i

文献信息

• Synthesis of Pyridines by Carbenoid-Mediated Ring Opening of 2<i>H</i>-Azirines
  作者：Nicole S. Y. Loy、Alok Singh、Xianxiu Xu、Cheol-Min Park

  DOI：10.1002/anie.201209301

  日期：2013.2.18

  a wide range of substituents on the resulting pyridine ring using mild reaction conditions (see scheme; esp=α,α,α′,α′‐tetramethyl‐1,3‐benzenedipropionic acid). The formation of the key intermediate is catalyst‐controlled, and subsequent cyclization and oxidation affords pyridines in excellent yields. The method has been used for the efficient synthesis of polyarylpyridines.

  漫游范围：使用温和的反应条件（参见方案； esp =α，α，α'，α'-四甲基-1,3-苯二丙酸），标题反应可耐受吡啶环上的大量取代基。关键中间体的形成受催化剂控制，随后的环化和氧化反应使吡啶具有优异的收率。该方法已用于有效合成聚芳基吡啶。
• Copper-catalyzed coupling of aryl iodides and tert-butyl β-keto esters: efficient access to α-aryl ketones and α-arylacetic acid tert-butyl esters
  作者：Duo Zhao、Yongwen Jiang、Dawei Ma

  DOI：10.1016/j.tet.2013.10.017

  日期：2014.5

  catalyzed coupling of aryl iodides with tert-butyl β-keto esters proceeded smoothly at 40 °C in DMF, providing α-aryl ketones after acid-promoted deprotection and decarboxylation of tert-butyl ester group. While CuI/2-picolinic acid catalyzed coupling of aryl iodides with tert-butyl acetoacetate at 70 °C in dioxane delivered α-arylacetic acid tert-butyl esters upon spontaneous deacylation. A wide range of

  CuI /反-4-羟基-1-脯氨酸催化的芳基碘化物与叔丁基β-酮酯的偶联在DMF中在40°C下顺利进行，在酸促进叔丁酯的脱保护和脱羧反应后得到α-芳基酮团体。CuI / 2-吡啶甲酸在二恶烷中于70°C催化芳基碘化物与乙酰乙酸叔丁酯偶合时，在自发脱酰作用下释放出α-芳酸叔丁酯。各种各样的官能团，例如乙酰基，甲氧基，腈，硝基，溴和氯与反应条件相容。
• Synthesis of the 1,3,4-Oxadiazole Core through Thermolysis of Geminal Diazides
  作者：Hellmuth Erhardt、Fabian Mohr、Stefan F. Kirsch

  DOI：10.1002/ejoc.201601119

  日期：2016.12

  The thermolysis of geminal diazides derived from acylacetate compounds is an efficient tool for the rapid construction of the 1,3,4-oxadiazole core. While a broad range of ethyl esters undergoes smooth transformation to the desired heterocycles that contain the ester moiety in moderate to high yields, the analogous tert-butyl esters give rise to the oxadiazoles with acyl groups, presumably through

  来自酰基乙酸酯化合物的孪生二叠氮化物的热解是快速构建 1,3,4-恶二唑核的有效工具。虽然范围广泛的乙酯以中等至高产率顺利转化为含有酯部分的所需杂环，但类似的叔丁酯产生具有酰基的恶二唑，可能是通过脱羧途径，然后是新的酰基转移。
• Phase-Transfer Catalyzed Asymmetric [4 + 1] Annulations for the Synthesis of Chiral 2,2-Disubstituted Tetrahydrothiophenes
  作者：Qi Yin、Xiaolu Wen、Yiwei Chen、Xiangnan Gong、Lin Hu

  DOI：10.1021/acs.orglett.1c02744

  日期：2021.10.1

  An efficient catalytic asymmetric [4 + 1] reaction, which features the use of simple β-keto esters as one-carbon nucleophiles and 5-succinimidothio-pent-2-enoates as four-atom bielectrophiles, has been developed in the presence of a bifunctional chiral phase-transfer catalyst. The new annulation provides a distinct protocol to access the functionalized 2-acyl-2-carboxyl tetrahydrothiophenes bearing

  一种高效的催化不对称 [4 + 1] 反应，其特点是使用简单的 β-酮酯作为单碳亲核试剂，使用 5-琥珀酰亚胺硫代-戊-2-烯酸酯作为四原子双亲电试剂，在双功能手性相转移催化剂。新的环化提供了一种独特的协议，以获取具有高非对映选择性和对映选择性的连续季和叔碳立体中心的官能化 2-酰基-2-羧基四氢噻吩。此外，制备的产物可以通过脱苯甲酰化和烷基化反应两个步骤容易地转化为手性 2-烷基-2-羧基四氢噻吩。
• Studies on dihydropyridines. III. Synthesis of 4,7-dihydrothieno(2,3-b)pyridines with vasodilator and antihypertensive activities.
  作者：IKUO ADACHI、TERUO YAMAMORI、YOSHIHARU HIRAMATSU、KATSUNORI SAKAI、SHIN-ICHI MIHARA、MASARU KAWAKAMI、MASAO MASUI、OSAMU UNO、MOTOHIKO UEDA

  DOI：10.1248/cpb.36.4389

  日期：——

  A series of 4-aryl-4, 7-dihydrothieno [2, 3-b] pyridine-5-carboxylate derivatives (I) was synthesized and tested for binding affinity to Ca2+ channels in rat cerebral cortex membranes, coronary vasodilator effect in isolated guinea pig hearts, and antihypertensive activity in spontaneously hypertensive rats.Several compounds had potent coronary vasodilator and antihypertensive activities.The structure-ctivity relationships of the series indicated that a lipophilic 3-alkyl substituent with moderate bulkiness was effective for enhancing the pharmacological potencies.Among them, methyl 4, 7-dihydro-3-isobuty1-6-methy1-4-(3-nitrophenyl) thieno [2, 3-b] pyridine-5-carboxylate (S-312) was selected as a promising cardiovascular agent.The relationship between the absolute configuration of S-312 and its biological activities is also presented.

  合成了一系列4-芳基-4, 7-二氢噻吩[2, 3-b]吡啶-5-羧酸酯衍生物(I)，并测试了它们对大鼠大脑皮层膜中Ca2+通道的结合亲和力、在离体豚鼠心脏中的冠状动脉扩张作用以及在自发性高血压大鼠中的抗高血压活性。若干化合物具有强大的冠状动脉扩张和抗高血压活性。该系列的结构-活性关系表明，具有适中体积的脂溶性3-烷基取代基对增强药理效能是有效的。其中，甲基4, 7-二氢-3-异丁基-6-甲基-4-(3-硝基苯基)噻吩[2, 3-b]吡啶-5-羧酸酯(S-312)被选为一个有前景的心血管药物。还介绍了S-312的绝对构型与其生物活性之间的关系。