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(R)-4-异丙基四氢-2H-吡喃-2-酮 | 37147-17-4

中文名称
(R)-4-异丙基四氢-2H-吡喃-2-酮
中文别名
(R)-3-异丙基-δ-戊内酯
英文名称
(4R)-4-(1-methylethyl)tetrahydro-2H-pyran-2-one
英文别名
(4R)-4-isopropyltetrahydro-2H-pyran-2-one;(4R)-4-propan-2-yloxan-2-one
(R)-4-异丙基四氢-2H-吡喃-2-酮化学式
CAS
37147-17-4
化学式
C8H14O2
mdl
——
分子量
142.198
InChiKey
YQBZIFFQEPWLLH-SSDOTTSWSA-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

  • 沸点:
    223.4±8.0 °C(Predicted)
  • 密度:
    0.973±0.06 g/cm3(Predicted)

计算性质

  • 辛醇/水分配系数(LogP):
    1.8
  • 重原子数:
    10
  • 可旋转键数:
    1
  • 环数:
    1.0
  • sp3杂化的碳原子比例:
    0.88
  • 拓扑面积:
    26.3
  • 氢给体数:
    0
  • 氢受体数:
    2

SDS

SDS:4d719ae0238981455b6cd659424c4511
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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

  • 作为反应物:
    描述:
    (R)-4-异丙基四氢-2H-吡喃-2-酮titanium(IV) isopropylate草酰氯 、 palladium on activated carbon 、 氢气sodium acetate 、 magnesium sulfate 、 二甲基亚砜三氯乙腈三苯基膦D-脯氨酸 、 sodium hydroxide 、 lithium hexamethyldisilazane 作用下, 以 四氢呋喃甲醇二氯甲烷二甲基亚砜 为溶剂, 反应 74.0h, 生成
    参考文献:
    名称:
    温和的Friedel-Crafts反应可实现玫瑰果苷的可靠合成
    摘要:
    已开发了一种玫瑰香蛋白对映体的11个步骤的全合成。该化学反应具有在大环段25上有效产生具有挑战性的碳正离子和高效分子间Friedel-Crafts烷基化反应的能力,从而在非常温和的反应条件下将复杂的呋喃-吡咯单元5与该碳正离子进行区域选择性结合。
    DOI:
    10.1021/acs.orglett.9b01100
  • 作为产物:
    描述:
    3-异丙基戊二酸 在 palladium on activated charcoal 4-二甲氨基吡啶sodium hydroxidedimethyl sulfide borane氢气乙酸酐对甲苯磺酸 作用下, 以 四氢呋喃乙醚二氯甲烷乙酸乙酯 为溶剂, -40.0~25.0 ℃ 、101.33 kPa 条件下, 反应 251.0h, 生成 (R)-4-异丙基四氢-2H-吡喃-2-酮
    参考文献:
    名称:
    Prochiral recognition in the reaction of 3-substituted glutaric anhydrides with chiral secondary alcohols
    摘要:
    The scope of a previously-reported process for the desymmetrization 3-substituted glutaric anhydrides has been investigated. Thus, prochiral anhydrides 5-9 react with 1-(1'-naphthyl)ethanol (2) to give glutaric acid half-esters, which are esterified by treatment with diazomethane to obtain the corresponding diesters 16-20. The degree of prochiral recognition is inversely related to the steric bulk of the stereodifferentiating group, with the series TBDMSO, Me, Et, Ph, i-Pr, and t-Bu giving ratios of 40:1, 16:1, 14:1, 8:1, 7:1, and 1:3, respectively. The absolute sense of the prochiral recognition was established by conversion of two of the diesters, 16a and 18a, into 3-substituted valerolactones (22a, 22c) of known absolute configuration.
    DOI:
    10.1021/jo00053a027
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文献信息

  • Enantioselective Lewis Acid Catalyzed Michael Reactions of Alkylidene Malonates. Catalysis by <i>C</i><sub>2</sub>-Symmetric Bis(oxazoline) Copper(II) Complexes in the Synthesis of Chiral, Differentiated Glutarate Esters
    作者:David A. Evans、Tomislav Rovis、Marisa C. Kozlowski、C. Wade Downey、Jason S. Tedrow
    DOI:10.1021/ja002246+
    日期:2000.9.1
    C2-symmetric bis(oxazoline)−Cu(II) complexes 1 catalyze the Mukaiyama Michael reaction of alkylidene malonates and enolsilanes. The use of hexafluoro-2-propanol is essential to induce catalyst turnover. High enantioselectivities are exhibited by bulky alkylidene malonate β-substituents using catalyst 1a. The glutarate ester products are readily decarboxylated to provide chiral 1,5-dicarbonyl synthons
    C2-对称双(恶唑啉)-Cu(II)配合物1催化亚烷基丙二酸酯和烯醇硅烷的Mukaiyama Michael反应。六氟-2-丙醇的使用对于诱导催化剂周转至关重要。使用催化剂 1a 的庞大的亚烷基丙二酸酯 β-取代基表现出高对映选择性。戊二酸酯产物很容易脱羧以提供手性 1,5-二羰基合成子。底物-催化剂复合物的晶体学表征提供了对与这些催化剂的结合事件的深入了解,并为观察到的面部选择性提供了基本原理。
  • Enantioselective Synthesis of Dihydropyrans. Catalysis of Hetero Diels−Alder Reactions by Bis(oxazoline) Copper(II) Complexes
    作者:David A. Evans、Jeffrey S. Johnson、Edward J. Olhava
    DOI:10.1021/ja992175i
    日期:2000.3.1
    C2-symmetric bis(oxazoline)−Cu(II) complexes 1 and 2 catalyze the inverse electron demand hetero Diels−Alder reaction of α,β-unsaturated carbonyl compounds (heterodiene) with electron-rich olefins (heterodienophile) in high diastereo- and enantioselectivity. α,β-Unsaturated acyl phosphonates and β,γ-unsaturated α-keto esters and amides are effective heterodienes, while enol ethers and sulfides function
    C2-对称双(恶唑啉)-Cu(II)配合物1和2催化α,β-不饱和羰基化合物(杂二烯)与高非对映异构体中的富电子烯烃(亲异二烯体)的反电子需求杂Diels-Alder反应对映选择性。α,β-不饱和酰基膦酸酯和 β,γ-不饱和 α-酮酯和酰胺是有效的杂二烯,而烯醇醚和硫化物则起到亲杂二烯的作用。杂二烯上可能有一系列取代模式:末端烷基、芳基、烷氧基和硫醚取代基都是可以容忍的。通过这种方法对二氢吡喃的对映选择性合成已被证明是直接的:环加成可以用低至 0.2 mol% 的手性催化剂进行,并且很容易以多克规模进行。该反应表现出有利的温度-对映选择性曲线,即使在室温下选择性也超过 90%。采用固体空气稳定催化剂的简单反应方案,方便的反应温度...
  • <i>Lower Rim</i> Functionalized Chiral Resorc[4]arenes Derived from Citronellal and Carvone
    作者:Jochen Mattay、Michael Schiendorfer
    DOI:10.1055/s-2005-872108
    日期:——
    In our work we have provided the lower rim of resorc[4]arenes with stereogenic centers as well as with functional groups. For the synthesis of these lower rim functionalized chiral resorc[4]arenes we have used aldehydes derived from citronellal and carvone. In general, the functional group was introduced into the aldehyde compound prior to the final cyclization step. In the case of substitution of the functional group by chloride ions during the cyclization step under standard conditions (HCl-EtOH, Δ), hydrochloric acid was replaced by the conjugated acid of the functional group. Another strategy is the introduction of the iodo group at the lower rim of a resorc[4]arene, which can be easily substituted by good nucleophiles and mild bases without protection of the upper rim.
    在我们的研究中,我们为环戊烯[4]的下缘提供了立体中心和功能基团。为了合成这些功能化的手性环戊烯[4],我们使用了来源于香茅醛和香薄荷酮的醛类。在一般情况下,功能基团是在最终环化步骤之前引入到醛化合物中。在标准条件下(HCl-EtOH,Δ)环化步骤中,如果功能基团被氯离子取代,则盐酸被功能基团的共轭酸取代。另一种策略是在环戊烯[4]的下缘引入碘基团,这可以在不保护上缘的情况下,方便地被良好的亲核试剂和温和的碱取代。
  • Desymmetrization of prochiral anhydrides with Evans’ oxazolidinones: an efficient route to homochiral glutaric and adipic acid derivatives
    作者:Rekha Verma、Seturam Mithran、Sunil K. Ghosh
    DOI:10.1039/a808838a
    日期:——
    The prochiral recognition between enantiotopic carbonyl groups in the reaction of 3-substituted glutaric and 3,4-disubstituted adipic anhydrides with anions of Evans’ oxazolidinones has been investigated. Each of the σ-symmetric anhydrides provided a diastereoisomeric mixture of half-acids which were separated either by fractional crystallization or by column chromatography of their esters. The diastereoselectivity of the desymmetrization reaction is dependent on the substituents present in the anhydrides.
    研究了Evans的噁唑烷酮阴离子与3-取代戊二酸酐及3,4-二取代己二酸酐反应中对映异位羰基之间的前手性识别。每个σ对称酸酐提供了半酸的非对映异构体混合物,它们通过分步结晶或其酯的柱色谱法分离。这种脱对称反应的非对映选择性取决于酸酐中存在的取代基。
  • Access to Optically Pure 4- and 5-Substituted Lactones:  A Case of Chemical−Biocatalytical Cooperation
    作者:Shaozhao Wang、Margaret M. Kayser、Valdas Jurkauskas
    DOI:10.1021/jo026605q
    日期:2003.8.1
    pure or highly enantiomerically enriched 4- and 5-substituted lactones are rather difficult to obtain. Chemical or enzymatic syntheses alone are not particularly successful. A combination of chemical catalysis and biocatalysis, however, provides a convenient route to a variety of these useful chiral compounds. In this paper we describe the synthesis of several optically pure 4- and 5-substituted lactones
    相当难以获得光学上纯的或高度对映体富集的4-和5-取代的内酯。单独的化学或酶促合成并不是特别成功。然而,化学催化和生物催化的组合提供了获得各种这些有用的手性化合物的便利途径。在本文中,我们描述了通过高度对映体富集的3烷基环酮的全细胞催化Baeyer-Villiger氧化获得的几种光学纯的4和5取代的内酯的合成。通过最近开发的相应烯酮的铜催化的不对称共轭还原,可以容易地获得这种手性酮。通过使用重组E.进行生物学的Baeyer-Villiger氧化,获得了非常高的近端区域选择性和完全的手性转移。过表达环戊酮单加氧酶(CPMO)的大肠杆菌菌株。一项比较研究表明,CPMO优于环己酮单加氧酶(CHMO)催化氧化获得的结果。
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