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2,2-difluoro-3-hydroxy-heptanoic acid ethyl ester

中文名称
——
中文别名
——
英文名称
2,2-difluoro-3-hydroxy-heptanoic acid ethyl ester
英文别名
ethyl 2,2-difluoro-3-hydroxyheptanoate
2,2-difluoro-3-hydroxy-heptanoic acid ethyl ester化学式
CAS
——
化学式
C9H16F2O3
mdl
——
分子量
210.221
InChiKey
VGZXLDGGSHMLGB-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):
    2.3
  • 重原子数:
    14
  • 可旋转键数:
    7
  • 环数:
    0.0
  • sp3杂化的碳原子比例:
    0.89
  • 拓扑面积:
    46.5
  • 氢给体数:
    1
  • 氢受体数:
    5

反应信息

  • 作为反应物:
    描述:
    2,2-difluoro-3-hydroxy-heptanoic acid ethyl ester亚磷酸三苯酯N-碘代丁二酰亚胺 作用下, 以 二氯甲烷 为溶剂, 反应 12.0h, 以50%的产率得到ethyl 2,2-difluoro-3-iodoheptanoate
    参考文献:
    名称:
    三氟甲基化烷基溴的钯催化的Heck型反应。
    摘要:
    已经开发了高效的钯催化的三氟甲基化烷基溴化物的Heck型反应。该反应在温和的反应条件下进行,具有很高的效率和出色的官能团耐受性,甚至对甲酰基和羟基也是如此。初步的机理研究表明,该反应涉及仲三氟甲基化的烷基。
    DOI:
    10.3762/bjoc.13.258
  • 作为产物:
    描述:
    正戊醛二氟溴乙酸乙酯三氟乙酸 作用下, 以 四氢呋喃 为溶剂, 反应 15.25h, 以48%的产率得到2,2-difluoro-3-hydroxy-heptanoic acid ethyl ester
    参考文献:
    名称:
    三氟甲基化烷基溴的钯催化的Heck型反应。
    摘要:
    已经开发了高效的钯催化的三氟甲基化烷基溴化物的Heck型反应。该反应在温和的反应条件下进行,具有很高的效率和出色的官能团耐受性,甚至对甲酰基和羟基也是如此。初步的机理研究表明,该反应涉及仲三氟甲基化的烷基。
    DOI:
    10.3762/bjoc.13.258
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文献信息

  • A Mild, Efficient Synthesis of gem-Difluorodihydrouracils
    作者:Alessandro Volonterio、Matteo Zanda、Francesca Olimpieri、Santos Fustero
    DOI:10.1055/s-0029-1218587
    日期:2010.2
    Carbodiimides react effectively with β-aryl/alkyl-β-hydroxy-α,α-difluorocarboxylic acids to afford a vast array of fully substituted gem-difluorodihydrouracils through a two step reaction sequence. In the first step, condensation between the two reactants leads in most cases to the formation of a mixture of the desired dihydrouracils and N-acylurea co-products. However, the latter could be easily recovered and efficiently converted into the target compounds. The sequence works well in very mild conditions (CH2Cl2, 20 ˚C) and the reaction resulted to be completely regioselective when asymmetric carbodiimides were used. When the N-acylurea derivatives are not sufficiently stable for isolation, the process could be done in a one-pot fashion leading to the direct formation of the desired dihydrouracils, although in lower yields.
    碳二亚胺与β-芳基/烷基-β-羟基-α,α-二氟羧酸有效反应,通过两步反应序列提供大量完全取代的宝石-二氟二氢尿嘧啶。在第一步中,两种反应物之间的缩合在大多数情况下导致形成所需二氢尿嘧啶和N-酰基脲联产物的混合物。然而,后者可以很容易地回收并有效地转化为目标化合物。该序列在非常温和的条件(CH2Cl2,20°C)下运行良好,并且当使用不对称碳二亚胺时,反应具有完全的区域选择性。当 N-酰基脲衍生物对于分离来说不够稳定时,该过程可以以一锅法完成,从而直接形成所需的二氢尿嘧啶,尽管产率较低。
  • An effective synthesis of 2,2-difluoro-3-hydroxy esters
    作者:Yanchang Shen、Ming Qi
    DOI:10.1016/0022-1139(93)02961-d
    日期:1994.6
    Reformatsky reactions of bromodifluoroacetate with carbonyl compounds and its applications to the synthesis of 2,2-difluoro-3-hydroxy esters as a means of two-carbon homologation with a difluoro moiety under mild conditions in good to excellent yields are described. In the case of aldehydes and aromatic ketones no catalyst was needed, while in the case of aliphatic ketones, 2 mol% of CeCl3 catalyst raises the yields dramatically from 30%-32% to 89%-92%.
  • The Mitsunobu reaction in the synthesis of α,α-difluoro-β-amino acids
    作者:Natalie A. Fokina、Andrei M. Kornilov、Valery P. Kukhar
    DOI:10.1016/s0022-1139(01)00430-4
    日期:2001.9
    A three-stage strategy is proposed to prepare alpha,alpha -difluoro-beta -amino acids starting from aldehydes and with ethyl bromodifluoroacetate as a fluorine source. The Mitsunobu reaction as a key step was studied by P-31 and F-19 NMR for alkyl- and aryl-substituted alpha,alpha -difluoro-beta -hydroxyesters and performed under optimized conditions giving the target compounds. (C) 2001 Elsevier Science B.V. All rights reserved.
  • Palladium-catalyzed Heck-type reaction of secondary trifluoromethylated alkyl bromides
    作者:Tao Fan、Wei-Dong Meng、Xingang Zhang
    DOI:10.3762/bjoc.13.258
    日期:——
    palladium-catalyzed Heck-type reaction of secondary trifluoromethylated alkyl bromides has been developed. The reaction proceeds under mild reaction conditions with high efficiency and excellent functional group tolerance, even towards formyl and hydroxy groups. Preliminary mechanistic studies reveal that a secondary trifluoromethylated alkyl radical is involved in the reaction.
    已经开发了高效的钯催化的三氟甲基化烷基溴化物的Heck型反应。该反应在温和的反应条件下进行,具有很高的效率和出色的官能团耐受性,甚至对甲酰基和羟基也是如此。初步的机理研究表明,该反应涉及仲三氟甲基化的烷基。
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