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2,3-dihydro-6-(4-methoxyphenyl)-2,2-dimethyl-4H-pyran-4-one | 1035816-69-3

中文名称
——
中文别名
——
英文名称
2,3-dihydro-6-(4-methoxyphenyl)-2,2-dimethyl-4H-pyran-4-one
英文别名
2,2-dimethyl-6-(p-methoxyphenyl)-2H-pyran-4(3H)-one;6-(4-methoxyphenyl)-2,2-dimethyl-2H-pyran-4(3H)-one;6-(4-methoxyphenyl)-2,2-dimethyl-3H-pyran-4-one
2,3-dihydro-6-(4-methoxyphenyl)-2,2-dimethyl-4H-pyran-4-one化学式
CAS
1035816-69-3
化学式
C14H16O3
mdl
——
分子量
232.279
InChiKey
IBNSVJIBWVRGBO-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):
    2.2
  • 重原子数:
    17
  • 可旋转键数:
    2
  • 环数:
    2.0
  • sp3杂化的碳原子比例:
    0.36
  • 拓扑面积:
    35.5
  • 氢给体数:
    0
  • 氢受体数:
    3

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

反应信息

点击查看最新优质反应信息

文献信息

  • 2,3-Dihydro-4<i>H</i>-pyran-4-ones and 2,3-Dihydro-4-pyridinones by Cyclizations of α,β-Unsaturated 1,3-Diketones
    作者:Franklyn K. MacDonald、D. Jean Burnell
    DOI:10.1021/jo901355e
    日期:2009.9.18
    β-unsaturated 1,3-diketones cyclize to 2,3-dihydro-4H-pyran-4-ones in an acidic aqueous medium, with exceptions being α,β-unsaturated 1,3-diketones in which the β carbon is substituted by a phenyl group. Addition of 1-butanamine to the reaction medium results in the formation of 2,3-dihydro-4-pyridinones, which appear to arise via an initial 1,4-addition of the amine to the α,β-unsaturated 1,3-diketones.
    在酸性水性介质中,多种α,β-不饱和1,3-二酮环化为2,3-二氢-4 H -pyran-4-one,但α,β-不饱和1,3-二酮除外β碳被苯基取代。将1-丁胺添加到反应介质中会导致形成2,3-二氢-4-吡啶酮,这似乎是由于将胺最初添加到α,β-不饱和的1,3-中而发生的,即最初的1,4-添加。二酮。
  • Highly efficient indium(<scp>iii</scp>)-mediated cyclisation of 5-hydroxy-1,3-diketones to 2,3-dihydro-4H-pyran-4-ones; mechanistic insights from in situFourier transform infrared spectroscopy
    作者:Philip C. Andrews、William J. Gee、Peter C. Junk、Harald Krautscheid
    DOI:10.1039/b919402a
    日期:——
    5-Hydroxy-1,3-diketones have been synthesised in a facile one-pot reaction from the treatment of acid chlorides with non-substituted ketones and LiHMDS. Subsequent cyclisation to 2,3-dihydro-4H-pyran-4-ones occurs rapidly and in high yield (89–99%) when mediated by anhydrous indium(III) chloride. A spectroscopic study of the reaction using in situ Fourier transform infrared (FTIR) spectroscopy has shown the reaction to be highly dependent on temperature, metal complex formation and InCl3 concentration. Since the reaction is deactivated by the precipitation of [InCl3·(H2O)3], the concurrent use of a stronger drying agent, such as molecular sieves 4 Å or anhydrous MgSO4, allows the reaction to be successfully carried out at relatively low loadings of InCl3 (1–10%). In their absence, the optimum reaction conditions were found to be a diketone : InCl3 ratio of 3 : 1 in toluene, and a reaction temperature of 80 °C.
    5-羟基-1,3-二酮通过将酸氯化物与非取代的酮和LiHMDS在简单的一锅反应中合成。随后在无水氯化铟(III)的催化下快速且高产率(89-99%)发生环化反应生成2,3-二氢-4H-吡喃-4-酮。对该反应的光谱学研究表明,反应高度依赖于温度、金属络合物的形成以及InCl3的浓度。由于反应会因[InCl3·(H2O)3]的沉淀而失活,因此同时使用更强的干燥剂,如4Å分子筛或无水MgSO4,可以使反应在相对低的InCl3负载(1-10%)下成功进行。在没有这些干燥剂的情况下,发现最佳反应条件为二酮与InCl3的摩尔比为3:1,溶剂为甲苯,反应温度为80°C。
  • Brønsted Acid Catalyzed Cycloisomerizations of 5,2-Enyne-1-ones: Highly Regioselective Synthesis of 2,3-Dihydro-4<i>H</i>-pyran-4-ones
    作者:Fang Yang、Ke-Gong Ji、Shu-Chun Zhao、Shaukat Ali、Yu-Ying Ye、Xue-Yuan Liu、Yong-Min Liang
    DOI:10.1002/chem.201103771
    日期:2012.5.21
    Dual‐action catalyst: A Brønsted acid catalyzed regioselective cycloisomerization was found to be highly effective for the preparation of structurally diverse 2,3‐dihydro‐4H‐pyran‐4‐ones in a 6‐exo‐trig manner from the corresponding 5,2‐enyne‐1‐ones. In this reaction, the Brønsted acid acts as a dual catalyst activating both the carbonyl and alkene moieties in a cascade manner (see scheme).
    双作用催化剂:布朗斯台德酸催化的区域选择性环异构被认为是用于制备非常有效的结构不同的2,3-二氢-4- ħ -吡喃-4-酮在6-外型-trig方式从相应的5-, 2炔1酮 在该反应中,布朗斯台德酸作为双重催化剂以级联方式激活羰基和烯烃部分(参见方案)。
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