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α-acetyl-δ-valerolactone | 63872-58-2

中文名称
——
中文别名
——
英文名称
α-acetyl-δ-valerolactone
英文别名
3-acetyltetrahydro-2H-pyran-2-one;2-acetyl-δ-valerolactone;3-acetyltetrahydropyran-2-one;2H-Pyran-2-one, 3-acetyltetrahydro-;3-acetyloxan-2-one
α-acetyl-δ-valerolactone化学式
CAS
63872-58-2
化学式
C7H10O3
mdl
——
分子量
142.155
InChiKey
DRBJCTHMAXSQQA-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

物化性质

  • 熔点:
    43-44 °C
  • 沸点:
    297.2±33.0 °C(Predicted)
  • 密度:
    1.134±0.06 g/cm3(Predicted)

计算性质

  • 辛醇/水分配系数(LogP):
    0.5
  • 重原子数:
    10
  • 可旋转键数:
    1
  • 环数:
    1.0
  • sp3杂化的碳原子比例:
    0.71
  • 拓扑面积:
    43.4
  • 氢给体数:
    0
  • 氢受体数:
    3

SDS

SDS:329e73f30aab8b12219550691ef197d5
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反应信息

  • 作为反应物:
    描述:
    α-acetyl-δ-valerolactonepotassium tert-butylate 作用下, 以 乙醇 为溶剂, 反应 0.17h, 以73%的产率得到potassium 3-acetyl-2-oxotetrahydro-2H-pyran-3-ide
    参考文献:
    名称:
    环状β-酮酯阴离子亲核反应性的量化
    摘要:
    来自无环和环状 β-酮酯的烯醇阴离子与二苯甲基离子和醌甲基化物的反应动力学已在二甲基亚砜溶液中在 20 °C 下进行光度测定。反应遵循二阶速率定律:一阶关于亲电子试剂和一阶关于烯醇。在 18-crown-6 醚和不同浓度的 K+ 存在下进行的反应允许定量测定离子对对各种烯醇化物离子的亲核反应性的影响。源自氧代环烷羧酸酯的烯醇化物离子显示出与其无环类似物相似的反应性。源自 δ-内酯的烯醇化物离子亲核性较低,这可以通过相应酯的强制 (E) 构象来解释。
    DOI:
    10.1002/ejoc.201501107
  • 作为产物:
    描述:
    delta-戊内酯 在 4 A molecular sieve 、 四氯化钛lithium diisopropyl amide 作用下, 以 四氢呋喃二氯甲烷 为溶剂, 反应 22.5h, 生成 α-acetyl-δ-valerolactone
    参考文献:
    名称:
    Studies on the α-acetylation of δ-valerolactone and ε-caprolactone
    摘要:
    The synthetic approach to alpha-acetylated delta-valero- (7a) and epsilon-caprolactone (7b) is reported. While 7a was isolated in 21% yield from the respective iodoester 5a by an alkylation sequence involving transesterification and Finkelstein reaction, 7b was not obtained from 5b but the dimer 8. Also transesterification and olefin ring closing metathesis (RCM) failed to prepare 7b. RCM resulted in the dimeric lactone 10, showing that the formation of 14-membered rings is favored over that of seven-membered rings. A Mukaiyama-type Claisen reaction finally gave alpha-acetyl lactones 7a and 7b in practically useful quantity of about 10 g (62% yield): starting lactones 13a,b were converted to silylenolethers 14a,b, which were acetylated with acetic anhydride in presence of the Lewis acid catalyst TiCl4. However, acetylation depends on the addition sequence of starting materials: if the mixture of Ac2O/TiCl4 is added to 14b, lactone 7b can be further converted to give bis-oxepanonyl ethanols 15a,b. Both compounds 15 were characterized by X-ray crystallography and NMR. (C) 2003 Elsevier Science Ltd. All rights reserved.
    DOI:
    10.1016/s0040-4020(03)00511-8
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文献信息

  • Synthesis of Polycyclic Structures by the Diels−Alder Reaction of Inner-Outer-Ring 1,3-Bis(trimethylsilyloxy)dienes
    作者:José Pérez Sestelo、María del Mar Real、Luis A. Sarandeses
    DOI:10.1021/jo0015319
    日期:2001.2.1
    A Diels-Alder reaction of novel inner-outer-ring 1,3-silyloxydienes 5-8 with a variety of dienophiles to afford highly functionalized polycyclic structures is reported. The inner-outer-ring 1,3-silyloxydienes 5-8 containing five- to seven-membered carbocyclic and heterocyclic rings were prepared in a single reaction vessel from 2-acetylcyclocarbonyls in quantitative yields. The Diels-Alder reaction
    报道了新颖的内外环1,3-甲硅烷氧基二烯5-8与多种亲二烯体的Diels-Alder反应,以提供高度官能化的多环结构。在一个反应​​容器中,由2-乙酰基环羰基化合物以定量产率制备了含有五元至七元碳环和杂环的内外环1,3-甲硅烷氧基二烯5-8。与1,4-苯醌(BQ),乙炔二甲酸二甲酯(DMAD)和甲基乙烯基酮(MVK)的Diels-Alder反应在室温下顺利进行,从而提供具有高区域选择性和良好收率的功能化多环萘,酚和烯酮( 39-75%)。此外,二烯5-8在催化量的ZnCl2存在下,还与苯甲醛(BA)和N-亚苄基苯胺(NBA)在异狄尔斯-阿尔德反应中反应,以高收率(40-93%)得到取代的多环吡喃酮和吡啶酮。总体而言,我们的合成策略可直接访问一组有趣的多环结构,这些结构可用于天然和非天然产物的合成。
  • Tris(4-bromophenyl)aminium Hexachloroantimonate-Mediated Intermolecular C(sp<sup>2</sup>)–C(sp<sup>3</sup>) Free Radical Coupling of Vindoline with β-Ketoesters and Related Compounds
    作者:Jiajun Zhang、Srinivas R. Paladugu、Rachel M. Gillard、Anindya Sarkar、Dale L. Boger
    DOI:10.1021/jacs.1c10971
    日期:2022.1.12
    proceeds with generation of a quaternary center bound to the aryl C15 center of vindoline capable of accommodating of the vinblastine C16′ methyl ester and functionalized for subsequent divergent heterocycle introduction. A comprehensive examination of the reaction scope, optimization of subtle reaction parameters, and key insights into the reaction mechanism are described. Contrary to what might be prevailing
    六氯锑酸三(4-溴苯基)铵 (BAHA) 介导的文多灵与多种底物(包括 β-酮酯、β-二酮、β-酮醛、β-酮腈、β-酮内酯、β-详细描述了酮内酰胺、β-氰酸酯和丙二腈。 BAHA 促进的分子间 sp 3 /sp 2偶联代表一类特殊的选择性 C-H 官能化反应,可直接形成碳-碳键,并生成与文多灵的芳基 C15 中心结合的四级中心,能够容纳长春花碱 C16' 甲酯并进行官能化以用于随后引入不同的杂环。描述了对反应范围的全面检查、微妙反应参数的优化以及对反应机理的关键见解。与普遍的预期相反,研究表明,合理的机制需要底物烯醇化物(而不是文多林)的初始单电子氧化,以及随后将所得亲电子自由基区域特异性添加到文多林上。因此,除了文多灵的新芳基化反应之外,这些研究还定义了 BAHA 和相关三芳基胺自由基阳离子的许多新的、以前未被认识的应用,这些应用源于它们在非还原和无金属条件。本文示例的那些包括介导稳定的
  • Mild Synthesis of Furans with a Quaternary Carbon Substituent at the 2-Position
    作者:Akihisa Iwamoto、Aki Katori、Yoshiaki Sashihara、Satoshi Kojima
    DOI:10.1246/cl.2012.1586
    日期:2012.12.5
    The reaction of cis-4-oxopent-2-enal with β-carbonyl compounds in the presence of weak acids such as hexafluoroisopropyl alcohol was found to give furans with a quaternary carbon substituent at the 2-positon at room temperature or below. Reactivity was dependent on the identity of the substrates.
    研究发现,在六氟异丙醇等弱酸存在下,顺式-4-氧代戊-2-烯醛与 β-羰基化合物发生反应,可在室温或室温以下生成 2-阳离子上带有季碳取代基的呋喃。反应活性取决于底物的特性。
  • Synthesis of α-Acetyl Lactones; Access to 14-Membered Bislactones by Attempts at Direct Ring Closure
    作者:Jens Christoffers、Heiko Oertling、Peter Fischer、Wolfgang Frey
    DOI:10.1055/s-2002-31907
    日期:——
    α-Acetyl lactones are accessed by Mukaiyama-Claisen reactions. Attempts at direct 7-membered ring closure, by either intramolecular alkylation of 4-iodobutyl acetoacetate or olefin metathesis from allyl 2-allyl-3-oxobutanoate, afford exclusively dimeric 14-membered ring products instead of the expected caprolactones.
    α-乙酰内酯可通过向山-克莱森反应获得。通过 4-碘丁基乙酰乙酸酯的分子内烷基化或 2-烯丙基-3-氧代丁酸烯丙酯的烯烃复分解,尝试直接 7 元环闭合,仅提供二聚体 14 元环产物而不是预期的己内酯。
  • Azepine compounds
    申请人:——
    公开号:US20020091256A1
    公开(公告)日:2002-07-11
    The azepine compound capable of emitting a light by light-irradiation or action of an electric field is represented by the following formula (I) or (II): 1 wherein X 1 and X 2 are the same or different, each representing an electron attractive group; R 1 represents a hydrogen atom, an alkyl group, an aryl group, an aralkyl group, or an alkoxy group; R 2 represents an amino group or an N-substituted amino group, or, in the formula (I), R 2 bonds a carbon atom adjacent to a ring Z to form a ring; and the ring Z represents a hydrocarbon ring which may have a substituent or a heterocycle which may have a substituent. The compound is useful as a functional material, thus, an organic electroluminescence device can be obtained by interposing an organic layer composed of the above compound between a pair of electrodes.
    具有通过光照射或电场作用而发出光的氮杂环化合物的化学式如下(I)或(II):1其中,X1和X2相同或不同,分别表示电子吸引基团;R1表示氢原子、烷基、芳基、芳基烷基或烷氧基;R2表示氨基或N-取代氨基,或在式(I)中,R2与环Z相邻的碳原子连接以形成环;环Z表示可能具有取代基的碳氢环或可能具有取代基的杂环。该化合物可用作功能材料,因此,在一对电极之间插入由上述化合物组成的有机层可获得有机电致发光器件。
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