1-重氮-2-戊酮 | 39910-26-4

• 分子结构分类: 有机化合物 - 有机氧化合物
• 中文名称: 1-重氮-2-戊酮
• 英文名称: 1-diazopentan-2-one
• 英文别名: (1Z)-1-diazopentan-2-one
• CAS: 39910-26-4
• 化学式: C₅H₈N₂O
• 分子量: 112.131
• InChiKey: DLRGYMDHPDGMHJ-UHFFFAOYSA-N

物化性质

• 保留指数：
  930;957

计算性质

• 辛醇/水分配系数(LogP)：
  0.8
• 重原子数：
  8
• 可旋转键数：
  3
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.6
• 拓扑面积：
  19.1
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  1-重氮-2-戊酮 在 N-氯代丁二酰亚胺 、 baker's yeast 、 偶氮二异丁腈 、 水 、 三正丁基氢锡 作用下， 以 苯 为溶剂， 反应 27.25h， 生成 (S)-4-壬醇
  参考文献：
  名称：

  Chemoenzymatic synthesis of α-halogeno-3-octanol and 4-or 5-nonanols. Application to the preparation of chiral epoxides

  摘要：

  A study of the microbiological reduction of different alpha-halogenoketones (4-chloro-3-octanone, 4-chloro-5-nonanone, 5-bromo-4-nonanone and 5-chloro-4-nonanone) with several strains of microorganism showed great difficulty in reducing ketone functions located in the middle of carbon chains. However, by choosing the appropriate microorganism, several enantiomerically pure diastereoisomers of the corresponding halohydrins have been obtained and were transformed into chiral epoxides. (C) 1998 Elsevier Science Ltd. All rights reserved.

  DOI：

  10.1016/s0957-4166(98)00470-4
• 作为产物：
  描述：

  1,1,1-三氟-2,4-庚二酮 在 对甲苯磺酰叠氮 、 三乙胺 作用下， 以 水 、 乙腈 为溶剂， 反应 5.5h， 生成 1-重氮-2-戊酮
  参考文献：
  名称：

  从1,6-炔烃和重氮酮通过金和铑催化到环戊烯的连续路线

  摘要：

  这项工作报告了通过两个新的反应序列，从1,6-炔烃和芳基重氮酮构建环戊烯核，这两个反应序列涉及最初的金催化的1,6-炔烃与重氮物质的环化反应，然后铑催化的所得3的骨架重排。 -cyclopropyl-2-en-1个。在大多数情况下，铑催化的反应提供了环戊烯衍生物，而几种正烷基或邻位取代的苯基酮则提供了七元的氧杂环。一个合理的机制为这两种截然不同的产品提供了理论依据。

  DOI：

  10.1002/adsc.201600980

文献信息

• Studies on hypolipidemic agents. II Synthesis of 1-arenesulfonyloxy-2-alkanone derivatives as potent esterase inhibitors and hypolipidemic agents.
  作者：KAZUO OGAWA、TADAFUMI TERADA、YOSHIYUKI MURANAKA、TOSHIHIRO HAMAKAWA、SADAO HASHIMOTO、SETSURO FUJII

  DOI：10.1248/cpb.34.3252

  日期：——

  Many 2-oxoalkyl arenesulfonate derivatives having straight or branched alkyl chains of different lengths, 2-oxoalkyl bis-arenesulfonate derivatives, and alkyl arenesulfonate derivatives having a ketal moiety at the 2-position on the alkyl chain were synthesized, and their esterase-inhibitory activities, as well as hypolipidemic activities, were evaluated.Among these compounds, 1-(2, 4, 6-trimethylbenzenesulfonyloxy)-2-dodecanone (III-1u), and 1-(2, 3, 4, 6-tetramethylbenzenesulfonyloxy)-2-hexanone (III-1w), -2-octanone (III-1x) and -2-decanone (III-1y) exhibited potent esterase-inhibitory activities (IC50=3×10-10, 2×10-10, 2×10<-10> and 3×<-11>M, respectively). However, the sulfonate (XV) having a ketal moiety on the alkyl chain and the bis-sulfonate (XVI) exhibited low inhibitory activities toward esterase in comparison with III and XII. Most of the compounds III and some of the compounds XII exhibited potent hypolipidemic activities corresponding to more than 50% lipid-lowering effect (plasma triglyceride and cholesterol ester) in vivo. The structure-activity relatioinships of these compounds are discussed.

  合成了许多具有直链或支链不同长度烷基链的2-氧代烷基芳磺酸盐衍生物、2-氧代烷基双芳磺酸盐衍生物以及在烷基链的2-位具有缩酮部分的烷基芳磺酸盐衍生物，并评估了它们的酯酶抑制活性及降血脂活性。在这些化合物中，1-(2,4,6-三甲基苯磺酰氧基)-2-十二烷酮（III-1u）、1-(2,3,4,6-四甲基苯磺酰氧基)-2-己烷酮（III-1w）、-2-辛烷酮（III-1x）和-2-癸烷酮（III-1y）表现出强效的酯酶抑制活性（IC50分别为3×10-10、2×10-10、2×10-10和3×10-11M）。然而，相对于III和XII，具有烷基链上缩酮部分的磺酸盐（XV）和双磺酸盐（XVI）对酯酶的抑制活性较低。大多数化合物III和部分化合物XII表现出强效的降血脂活性，对应于体内超过50%的脂质降低效果（血浆甘油三酯和胆固醇酯）。讨论了这些化合物的构效关系。
• Metal-Free Insertion Reactions of Diazo Carbonyls to Azlactones
  作者：Amanda C. de Mello、Patrícia B. Momo、Antonio C. B. Burtoloso、Giovanni W. Amarante

  DOI：10.1021/acs.joc.8b01683

  日期：2018.9.21

  Insertion reactions of diazo carbonyls to azlactones in basic conditions have been performed. The developed method allows the preparation of a wide range of oxazole derivatives in yields ranging from 74 to 98%. Different substituents on both azlactone rings and diazo carbonyls do not compromise the methodology, even those containing stereogenic centers. Isotopic labeling experiments revealed the mechanism

  在碱性条件下已经进行了重氮羰基与氮杂内酯的插入反应。所开发的方法可以制备范围为74％至98％的各种恶唑衍生物。氮杂内酯环和重氮羰基上的不同取代基不会损害方法学，即使是那些含有立体异构中心的取代基。同位素标记实验表明，该机理可能是通过铵盐衍生物罕见的重氮羰基活化而进行的。
• Highly stereoselective formation of cis-enediones from α-diazo carbonyl compounds catalysed by [RuCl(η5-C5H5)(PPh3)2]
  作者：Walter Baratta、Alessandro Del Zotto

  DOI：10.1039/a706459d

  日期：——

  Stereoselective decomposition of the α-diazo carbonyl compounds N2CHCOR [R = Me, Prn, Pri, (CH2)10CH3] catalysed by [RuCl(η5-C5H5)(PPh3)2] (0.1 mol%) in toluene at 65 °C affords quantitatively RCOCHCHCOR carbene dimers, the cis isomers being formed in 95–97% yield; under the same experimental conditions N2CHCOEt gives diethyl maleate in a purity of greater than 99%, the highest value for a stereoselective carbene–carbene dimer formation reported to date.

  在65°C下，使用[RuCl(η5-C5H5)(PPh3)2]催化（0.1 mol%）的α-二氮羰基化合物N2CHCOR [R = Me, Prn, Pri, (CH2)10CH3]在甲苯中选择性分解，可以定量生成RCOCHCHCOR的卡宾二聚体，其中顺式异构体的产率为95–97%；在相同实验条件下，N2CHCOEt生成的二乙基马来酸酯纯度超过99%，这是迄今为止报道的立体选择性卡宾–卡宾二聚体形成的最高值。
• Biological screening of a diverse set of AI-2 analogues in Vibrio harveyi suggests that receptors which are involved in synergistic agonism of AI-2 and analogues are promiscuous
  作者：Jacqueline A. I. Smith、Jingxin Wang、Sao-Mai Nguyen-Mau、Vincent Lee、Herman O. Sintim

  DOI：10.1039/b909666c

  日期：——

  C1-alkyl AI-2 analogues do not induce bioluminescence in V. harveyi on their own but enhance the bioluminescence induced by AI-2 in a synergistic fashion. A new facile synthesis of AI-2 facilitates the synthesis of a diverse set of AI-2 analogues and biological screening suggests that receptors that are involved in the synergistic bioluminescence production in V. harveyi are promiscuous.

  C1-烷基AI-2类似物单独不会诱导V. harveyi的生物发光，但会以协同方式增强AI-2诱导的生物发光。AI-2的新简易合成方法便于合成多种AI-2类似物，生物筛选结果表明，参与V. harveyi协同生物发光产生的受体是多重性的。
• Studies of hypolipidemic agents. I. Syntheses and hypolipidemic activities of 1-substituted 2-alkanone derivatives.
  作者：KAZUO OGAWA、TADAFUMI TERADA、YOSHIYUKI MURANAKA、TOSHIHIRO HAMAKAWA、SADAO HASHIMOTO、SETSURO FUJII

  DOI：10.1248/cpb.34.1118

  日期：——

  Many 1-substituted 2-alkanone derivatives were synthesized and their inhibitory activities toward pancreatic lipase and esterase were examined in order to obtain hypolipidemic agents. 1-Benzenesulfonyloxy-2-pentanone (VI-2a) and 1-(2, 4, 6-trimethylbenzenesulfonyloxy)-2-pentanone (VI-2q) exhibited not only potent and selective esterase inhibitions (IC50 : 9.0×10-7M and 1.0×10-6M, respectively), but also potent hypolipidemic action (90 and 92% reductions of plasma triglyceride, and 53 and 90% reductions of plasma total cholesterol, respectively). A novel working hypothesis is presented to account for the lowering of the plasma lipids level, i.e., that inhibition of esterase and lipase activities in the small intestinal lumen may be responsible for the decrease in the plasma lipids level.

  合成了许多1-取代的2-酮烷基衍生物，并考察了它们对胰脂肪酶和酯酶的抑制活性，以期获得降脂药物。1-苯磺酰氧基-2-戊酮（VI-2a）和1-(2, 4, 6-三甲基苯磺酰氧基)-2-戊酮（VI-2q）不仅表现出显著且具有选择性的酯酶抑制（IC50：9.0×10^-7M 和 1.0×10^-6M），而且还具有强效的降脂作用（血浆甘油三脂分别减少90%和92%，血浆总胆固醇分别减少53%和90%）。提出了一个新的工作假设来解释血浆脂质水平的降低，即小肠腔内酯酶和脂肪酶活性的抑制可能是导致血浆脂质水平下降的原因。