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3-氯-2-乙氧基吡啶 | 177743-06-5

中文名称
3-氯-2-乙氧基吡啶
中文别名
——
英文名称
2-ethoxy-3-chloropyridine
英文别名
3-Chloro-2-ethoxypyridine
3-氯-2-乙氧基吡啶化学式
CAS
177743-06-5
化学式
C7H8ClNO
mdl
MFCD09702462
分子量
157.6
InChiKey
MTTKGSCSPHCOOF-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:
    10
  • 可旋转键数:
    2
  • 环数:
    1.0
  • sp3杂化的碳原子比例:
    0.285
  • 拓扑面积:
    22.1
  • 氢给体数:
    0
  • 氢受体数:
    2

安全信息

  • 危险性防范说明:
    P261,P305+P351+P338
  • 危险性描述:
    H302,H315,H319,H335
  • 储存条件:
    2-8°C

SDS

SDS:41a84f0f70e475b0bedc1df7847eee79
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反应信息

  • 作为反应物:
    描述:
    3-氯-2-乙氧基吡啶N,N-二甲基甲酰胺三氯氧磷 作用下, 反应 12.0h, 以66%的产率得到2,3-二氯吡啶
    参考文献:
    名称:
    Lai, Long-Li; Lin, Pen-Yuan; Wang, Jy-Shih, Journal of Chemical Research - Part S, 1996, # 4, p. 194 - 195
    摘要:
    DOI:
  • 作为产物:
    描述:
    2,3-二氯吡啶乙醇sodium 作用下, 以79%的产率得到3-氯-2-乙氧基吡啶
    参考文献:
    名称:
    Rhodium-catalysed Nucleophilic Ring Opening Reaction of 1- and 3-ethoxy-5,8-epoxy-5,8-dihydroisoquinolines
    摘要:
    从 2,3- 和 2,5- 二氯吡啶中得到 2-乙氧基-3-和 5-氯吡啶。2,3- 和 2,5- 二氯吡啶在呋喃存在下与 tBuLi 反应,得到 1- 和 3- 乙氧基-5,8-环氧-5,8-二氢异喹啉。铑催化的 1-和 3-乙氧基-5,8-环氧-5,8-二氢异喹啉与 2-溴苯酚的开环反应生成异构体 7-(2-溴苯氧基)-1-乙氧基-7,8-二氢异喹啉-8-醇、6-(2-溴苯氧基)-1-乙氧基-5,6-二氢异喹啉-5-醇和 7-(2-溴苯氧基)-3-乙氧基-7,8-二氢异喹啉-8-醇、6-(2-溴苯氧基)-3-乙氧基-5,6-二氢异喹啉-5-醇的异构体。
    DOI:
    10.3184/174751913x13663103976700
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文献信息

  • Substituted 3,4-pyridynes: clean cycloadditions
    作者:Stephen J. Connon、Anthony F. Hegarty
    DOI:10.1039/a909772d
    日期:——
    The stabilisation of 3,4-pyridyne (1) by an alkoxy group adjacent to the ring nitrogen is reported. The regioselective lithiation of 2-ethoxy- (14), 2-methoxy- (18), 2-isopropoxy- (19) and 6-isopropoxy- (26) -3-chloropyridines with tert-butyllithium at low temperatures, followed by elimination of lithium chloride affords 2- and 6-alkoxy-3,4-pyridynes. These species are trapped in situ with furan in a Diels–Alder reaction to give 5–8 in 66–89% yield, and do not give products typical of polymerisation or nucleophilic addition to the 3,4-pyridyne intermediates. As a comparison treatment of 3-chloropyridine with furan and LDA gives only 19% of adduct (4). We also report the novel use of the isopropoxy (rather than methoxy) group in these systems, which can act as a heteroatomic electron donating group which inhibits α-lithiation by tert-butyllithium because of its increased steric bulk.
    邻环氮的烷氧基对3,4-吡啶炔(1)的稳定作用已有报道。2-甲氧基(18)、2-乙氧基(14)、2-异丙氧基(19)和6-异丙氧基(26)-3-氯吡啶在低温下与叔丁基锂进行区域选择性锂化反应,随后脱去氯化锂生成2-和6-烷氧基-3,4-吡啶炔。这些中间体与呋喃在Diels-Alder反应中就地捕获,生成5-8,产率为66-89%,并且不会生成3,4-吡啶炔中间体的聚合或亲核加成反应的典型产物。作为对比,3-氯吡啶与呋喃和LDA反应仅得到19%的加成物(4)。我们还报道了在这些系统中异丙氧基(而非甲氧基)的新颖应用,由于其增加了的空间位阻,可以作为抑制叔丁基锂α-锂化的杂原子电子供体。
  • An efficient palladium-catalyzed synthesis of 1-heteroaryl-4-aminopiperidine derivatives from heteroaryl chlorides
    作者:Kena Zhang、Hui Li、Jingya Li、Dapeng Zou、Yangjie Wu、Yusheng Wu
    DOI:10.1016/j.tetlet.2017.04.014
    日期:2017.5
    protocol for the synthesis of 1-heteroaryl-4-(N-methyl)aminopiperidines starting from heteroaryl chloride derivatives is described. A broad range of 1-heteroaryl-4-(N-Boc-N-methyl)aminopiperidine derivatives were obtained in good to excellent yields using DavePhos as optimal ligand for Pd-catalyzed Buchwald-Hartwig amination reaction. After a mild and efficient acidolysis the amination products could
    描述了一种从杂芳基氯衍生物开始合成1-杂芳基-4-(N-甲基)氨基哌啶的有效方案。使用DavePhos作为Pd催化的Buchwald-Hartwig胺化反应的最佳配体,可以以良好或优异的收率获得多种1-杂芳基-4-(N -Boc- N-甲基)氨基哌啶衍生物。经过温和有效的酸解后,可以成功获得胺化产物。
  • Regioselective difunctionalization of pyridines <i>via</i> 3,4-pyridynes
    作者:Benjamin Heinz、Dimitrije Djukanovic、Paolo Filipponi、Benjamin Martin、Konstantin Karaghiosoff、Paul Knochel
    DOI:10.1039/d1sc01208h
    日期:——

    A regioselective 3,4-difunctionalization of pyridines was performed. Lithiation and transmetalation with arylmagnesiums gave 3,4-pyridyne intermediates. Addition of magnesium species led to 3-pyridylmagnesiums which were quenched with electrophiles.

    对吡啶进行了区域选择性的3,4-双官能团化反应。通过锂化和芳基镁化反应得到了3,4-吡啶炔中间体。加入镁试剂形成了3-吡啶基镁化合物,然后用亲电试剂进行猝灭。
  • Rh(I)-Catalyzed Ring-Opening of Hetaryne−Furan Diels−Alder Adducts: Rapid Access to Stereochemically Defined Heterocyclic Scaffolds
    作者:Trung D. Nguyen、Robert Webster、Mark Lautens
    DOI:10.1021/ol200057j
    日期:2011.3.18
    Probing the nucleophilic ring-opening of various bicyclic [2.2.1] hetaryne-furan Diels-Alder adducts revealed that efficient reactivity could be observed with heteroatom nucleophiles by using a cationic Rh(I) complex in combination with a chiral Josiphos-type phosphine ligand. Remarkably, this catalyst system was not impeeded by the incorporation of a heteroatom into the substrate. Racemic materials afforded separable mixtures of enantioenriched regioisomers, indicating that strong reagent control is operative.
  • 6,7-DIHYDROPYRAZOLO[1,5-A]PYRAZIN-4(5H)-ONE COMPOUNDS AND THEIR USE AS NEGATIVE ALLOSTERIC MODULATORS OF MGLUR2 RECEPTORS
    申请人:Janssen Pharmaceutica, N.V.
    公开号:EP3004107B1
    公开(公告)日:2017-05-10
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