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4-hydroxy-4-ethylheptane-3,5-dione

中文名称
——
中文别名
——
英文名称
4-hydroxy-4-ethylheptane-3,5-dione
英文别名
4-ethyl-4-hydroxyheptane-3,5-dione;4-ethyl-4-hydroxy-3,5-heptanedione
4-hydroxy-4-ethylheptane-3,5-dione化学式
CAS
——
化学式
C9H16O3
mdl
——
分子量
172.224
InChiKey
WHNIUYVIMQWBNV-UHFFFAOYSA-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):
    0.9
  • 重原子数:
    12
  • 可旋转键数:
    5
  • 环数:
    0.0
  • sp3杂化的碳原子比例:
    0.78
  • 拓扑面积:
    54.4
  • 氢给体数:
    1
  • 氢受体数:
    3

反应信息

  • 作为反应物:
    描述:
    4-hydroxy-4-ethylheptane-3,5-dione 在 formate dehydrogenase 、 乙二胺四乙酸 、 Bacillus licheniformis acetylacetoin reductase 、 β-烟酰胺腺嘌呤二核苷酸 、 sodium formate 、 2-巯基乙醇 作用下, 以72%的产率得到4R,5S-dihydroxy-4-ethyl-3-hexanone
    参考文献:
    名称:
    酶促非对映和对映选择性合成α-烷基-α,β-二羟基酮†
    摘要:
    报道了制备光学纯的α-烷基-α,β-二羟基酮的酶促策略。α-二酮的均相和交叉偶联反应乙酰丙酮 合酶(AAS)产生一组α-烷基-α-羟基-β-二酮(30-60%,ee 67-90%),进而还原为相应的手性α,区域,非对映体和对映体-烷基-α,β-二羟基酮(60–70%,ee> 95%)使用 乙酰丙酮还原酶(AAR)作为催化剂。两种酶均获自地衣芽孢杆菌,并以粗制形式使用。的相对顺式的对映纯的α,β二羟基产物的立体化学是由NOE实验分配,而它们的绝对构型是由选定的3,4-二羟基-3-甲基-戊-2-酮的天然产物的转化(确定+)-邻苯二酚。
    DOI:
    10.1039/c1ob05928a
  • 作为产物:
    描述:
    3,4-己二酮三乙胺 作用下, 以 乙醇 为溶剂, 反应 1.93h, 生成 4-hydroxy-4-ethylheptane-3,5-dione
    参考文献:
    名称:
    Thiazolium-functionalized polystyrene monolithic microreactors for continuous-flow umpolung catalysis
    摘要:
    噻唑盐预催化剂已被固定在硅胶和单一聚苯乙烯上,并在批处理条件下测试了它们在三种模型反应中的活性,包括苯甲醛的苯基醇缩合反应、生物酮的酰亚胺型缩合反应,以及生物酮与反式查尔酮的斯特特反应。该研究的前提是使用环保的水和乙醇溶剂。在确立了聚苯乙烯单体噻唑碳烯催化剂的高性能后,通过制作相应的单体微反应器(耐压不锈钢柱)在流动条件下测试了它们的有效性。重要的是,通过简要的底物范围研究,已经证明聚合物基质和连续流动模式协同作用,有助于在一段时间内保持碳烯催化剂的活性,从而允许制备的单体反应器在通过反转策略生产有价值化合物方面进行长期操作(长达7天)。
    DOI:
    10.1039/c3gc41284a
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文献信息

  • New Coupling Reactions of Some Acyl Chlorides with Samarium Diiodide in the Presence of Samarium: Carbinols from Three Acyl Units
    作者:Christian Clausen、Ingo Weidner、Holger Butenschön
    DOI:10.1002/1099-0690(200011)2000:22<3799::aid-ejoc3799>3.0.co;2-n
    日期:2000.11
    A mixture of samarium(II) iodide and samarium can induce a coupling reaction of three molecules of alkanoyl halide to give trialkylcarbinols of 2-hydroxy-1,3-diones. When aliphatic, unbranched alkanoyl chlorides are used, this new coupling reaction provides trimeric products as the main reaction products. Tetrahydropyran (THP) proved superior as the solvent because no ring-opening and subsequent reaction
    碘化钐 (II) 和钐的混合物可以诱导三分子烷酰卤的偶联反应,生成 2-羟基-1,3-二酮的三烷基甲醇。当使用脂肪族无支链烷酰氯时,这种新的偶联反应提供了三聚产物作为主要反应产物。四氢吡喃 (THP) 作为溶剂被证明是优越的,因为在反应条件下没有观察到开环和随后与烷酰卤的反应,这与使用 THF 时不同。
  • Expanding the scope of enzymatic carboligation reactions in flow-mode: production of optically active tertiary alcohols with packed-bed micro-bioreactors
    作者:P. P. Giovannini、O. Bortolini、A. Cavazzini、R. Greco、G. Fantin、A. Massi
    DOI:10.1039/c4gc00838c
    日期:——
    Acetylacetoin synthase (AAS) from Bacillus licheniformis has been partially purified and immobilized on a silica support and its activity was tested under batch conditions in the homo-coupling of a set of α-diketones leading to valuable α-hydroxy ketone derivatives displaying a chiral tertiary alcohol functionality at the α-position. Next, the effectiveness of AAS heterogeneous catalysis has been evaluated
    地衣芽孢杆菌的乙酰丙酮化合酶(AAS)该化合物已部分纯化并固定在二氧化硅载体上,并在一批α-二酮的均相偶联中分批条件下测试了其活性,从而生成了宝贵的α-羟基酮衍生物,在α位上显示了手性叔醇官能度。接下来,通过制造相应的填充床微反应器(耐压不锈钢塔),在连续流动条件下评估了AAS非均相催化的有效性。已经证明,共价固定在二氧化硅载体上和流动方式协同作用有助于随着时间的流逝保持酶的活性,从而使得所制备的生物反应器可以长期操作(长达15天)来生产手性靶标。通过umpolung策略。
  • Bacillus stearothermophilus acetylacetoin synthase: A new catalyst for C–C bond formation
    作者:Pier Paolo Giovannini、Paola Pedrini、Valentina Venturi、Giancarlo Fantin、Alessandro Medici
    DOI:10.1016/j.molcatb.2010.03.001
    日期:2010.6
    The synthesis of α-hydroxy-1,3-diketones 2 and 3 from the corresponding 1,2-diketones with Bacillus stearothermophilus ATCC2027 acetylacetoin synthase (AAS) was described. The enzyme catalyzed the condensation of the dialkyl- or alkyl-aryl-1,2-diketones 1 with the elimination of a carboxylic acid moiety. The reactions were carried out using either one diketone both acting as donor and acceptor (homo-coupling)
    描述了用嗜热脂肪芽孢杆菌ATCC2027乙酰丙酮合成酶(AAS)从相应的1,2-二酮合成α-羟基-1,3-二酮2和3。该酶催化二烷基-或烷基-芳基-1,2-二酮1的缩合并消除了羧酸部分。使用既充当供体又受主的二酮(均相偶联)或使用两种不同的反应物种(交叉偶联)进行反应。不对称二烷基-1,2-二酮1c – d的均偶联反应提供了区域异构体2(30–42%,ee 67–70%)和3的混合物(19–25%),而使用2,3-丁二酮1a,3,4仅获得1,3-二酮2a(57%),2b(60%)和2e(45%,ee 76%)-己二酮1b和1-苯基-1,2-丙二酮1e。二酮1a和1b以及1b和1e的交叉偶联反应使用不同比例的供体和受体进行。在这两种情况下,唯一的交叉偶联产物是3-乙基-3-羟基-2,4-己二酮4(62%,ee 91%)。
  • Thiazolium-functionalized polystyrene monolithic microreactors for continuous-flow umpolung catalysis
    作者:Olga Bortolini、Alberto Cavazzini、Paolo Dambruoso、Pier Paolo Giovannini、Lorenzo Caciolli、Alessandro Massi、Salvatore Pacifico、Daniele Ragno
    DOI:10.1039/c3gc41284a
    日期:——
    Thiazolium salt pre-catalysts have been immobilized on silica and monolithic polystyrene and their activity was tested under batch conditions in three model umpolung reactions, namely the benzoin condensation of benzaldehyde, the acyloin-type condensation of biacetyl, and the Stetter reaction of biacetyl with trans-chalcone. A prerequisite of the study has been the utilization of environmentally benign water and ethanol solvents. After having established the higher performance of polystyrene monolithic thiazolium carbene catalysts, their effectiveness has been tested under the flow regime by fabricating the corresponding monolithic microreactors (pressure-resistant stainless-steel columns). Importantly, it has been demonstrated by a brief substrate scope study that the polymeric matrix and the continuous flow regime synergistically contribute to preserve the activity of the carbene catalysts over time, thus permitting the long-term operation (up to 7 days) of the prepared monolithic reactors for the production of valuable compounds via the umpolung strategy.
    噻唑盐预催化剂已被固定在硅胶和单一聚苯乙烯上,并在批处理条件下测试了它们在三种模型反应中的活性,包括苯甲醛的苯基醇缩合反应、生物酮的酰亚胺型缩合反应,以及生物酮与反式查尔酮的斯特特反应。该研究的前提是使用环保的水和乙醇溶剂。在确立了聚苯乙烯单体噻唑碳烯催化剂的高性能后,通过制作相应的单体微反应器(耐压不锈钢柱)在流动条件下测试了它们的有效性。重要的是,通过简要的底物范围研究,已经证明聚合物基质和连续流动模式协同作用,有助于在一段时间内保持碳烯催化剂的活性,从而允许制备的单体反应器在通过反转策略生产有价值化合物方面进行长期操作(长达7天)。
  • α-Diketones as acyl anion equivalents: a non-enzymatic thiamine-promoted route to aldehyde–ketone coupling in PEG400 as recyclable medium
    作者:Olga Bortolini、Giancarlo Fantin、Marco Fogagnolo、Pier Paolo Giovannini、Valentina Venturi、Salvatore Pacifico、Alessandro Massi
    DOI:10.1016/j.tet.2011.08.056
    日期:2011.10
    By mimicking the peculiar behavior of thiamine diphosphate-dependent acetylacetoin synthase, it has been demonstrated that thiamine hydrochloride 2a and its simple analogue thiazolium salt 2b are able to activate alpha-diketones as acyl anion equivalents in nucleophilic acylations, such as the homo-coupling of alpha-diketones and the hitherto unreported cross-coupling between a-diketones and alpha-ketoesters. These carboligation reactions were optimized under stoichiometric (2a) and catalytic conditions (2b) by using eco-friendly PEG400 as the reaction medium, thus allowing both solvent and thiazolium salt recycling. (C) 2011 Elsevier Ltd. All rights reserved.
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