2,2-二甲基-3H-吡喃-4-酮 | 18927-48-5

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 吡喃
• 中文名称: 2,2-二甲基-3H-吡喃-4-酮
• 英文名称: 2,2-dimethyl-2,3-dihydropyran-4-one
• 英文别名: 2,3-Dihydro-2,2-dimethyl-4H-pyran-4-one；2,2-dimethyl-2,3-dihydro-pyran-4-one；2,2-dimethyl-2,3-dihydropyranone-4；2,2-dimethyl-4H-pyran-4-one；2,3-dihydro-2,2-dimethylpyran-4-one；2.2-Dimethyl-3.4-dihydro-4H-pyran-4-on；2,2-dimethyl-3H-pyran-4-one
• CAS: 18927-48-5
• 化学式: C₇H₁₀O₂
• 分子量: 126.155
• InChiKey: RNRSQPBLXUJIAJ-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  0.6
• 重原子数：
  9
• 可旋转键数：
  0
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.57
• 拓扑面积：
  26.3
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  2,2-二甲基-3H-吡喃-4-酮 在 一水合肼 作用下， 以 甲醇 为溶剂， 反应 1.0h， 以74%的产率得到3-(2-hydroxy-2-methylpropyl)pyrazole
  参考文献：
  名称：

  Synthesis, electronic structure, and physicochemical characteristics of pyrazolo[1,2-a]pyridazinium

  摘要：

  DOI：

  10.1007/bf00473962
• 作为产物：
  描述：

  1-hydroxy-5-methyl-hexa-1,4-dien-3-one 在 硫酸 、 mercury(II) sulfate 、 sodium hydroxide 作用下， 以 水 为溶剂， 反应 3.0h， 以60%的产率得到2,2-二甲基-3H-吡喃-4-酮
  参考文献：
  名称：

  WO2006/58723

  摘要：

  公开号：

文献信息

• Preparation Method for Amide Compounds and Use Thereof in Medical Field
  申请人：Shanghai Synergy Pharmaceutical Sciences Co., Ltd.

  公开号：US20220024941A1

  公开（公告）日：2022-01-27

  Provided are a preparation method for amide compounds and use thereof in medical field. Specifically, provided are small molecule amide compounds. Such compounds are inhibitors of enhancer homolog 2 (EZH2) of Zeste gene, and can be used for preventing and/or treating related diseases mediated by EZH2, including tumors, myeloproliferative diseases or autoimmune diseases.

  提供了一种酰胺化合物的制备方法及其在医学领域中的用途。具体来说，提供了小分子酰胺化合物。这些化合物是Zeste基因的增强子同源物2（EZH2）的抑制剂，可用于预防和/或治疗由EZH2介导的相关疾病，包括肿瘤、骨髓增生性疾病或自身免疫疾病。
• Heterocyclic derivatives
  申请人：Imperial Chemical Industries PLC

  公开号：US05098930A1

  公开（公告）日：1992-03-24

  The invention concerns a heterocyclic derivative of the formula I, ##STR1## wherein Ar.sup.1 is optionally substituted phenyl or naphthyl; A.sup.1 is (1-6C)alkylene, (3-6C)alkenylene, (3-6C)alkynylene or cyclo-(3-6C)alkylene; Ar.sup.2 is optionally substituted phenylene, or a 6 membered heterocyclene moiety containing up to three nitrogen atoms; R.sup.1 is hydrogen, (1-6C)alkyl, (3-6C)alkenyl, (3-6C)alkynyl, cyano-(1-4C)alkyl or (2-4C)alkanoyl, or optionally substituted benzoyl; and R.sup.2 and R.sup.3 together form a group of the formula -A.sup.2 -X-A.sup.3 - wherein each of A.sup.2 and A.sup.3 is (1-4C)alkylene and X is oxy, thio, sulphinyl, sulphonyl or imino; or a pharmaceutically-acceptable salt thereof. The compounds of the invention are inhibitors of the enzyme 5-lipoxygenase.

  该发明涉及式I的杂环衍生物，其中Ar.sup.1是可选择取代的苯基或萘基；A.sup.1是(1-6C)烷基，(3-6C)烯基，(3-6C)炔基或环-(3-6C)烷基；Ar.sup.2是可选择取代的苯基，或含有最多三个氮原子的6元杂环基；R.sup.1是氢，(1-6C)烷基，(3-6C)烯基，(3-6C)炔基，氰基-(1-4C)烷基或(2-4C)烷酰基，或可选择取代的苯甲酰基；而R.sup.2和R.sup.3共同形成式-A.sup.2-X-A.sup.3-的基团，其中A.sup.2和A.sup.3中的每一个是(1-4C)烷基，X是氧，硫，亚硫酰基，磺酰基或亚胺基；或其药用可接受盐。该发明的化合物是5-脂氧合酶的抑制剂。
• Heterocycles for use as inhibitors of leukotrienes
  申请人：Imperial Chemical Industries PLC

  公开号：US05134148A1

  公开（公告）日：1992-07-28

  The invention concerns a heterocycle of the formula I ##STR1## wherein Q is an optionally substituted 6-membered monocyclic or 10-membered bicyclic heterocyclic moiety containing one or two nitrogen atoms; A is (1-6C)alkylene, (3-6C)alkenylene, (3-6C)alkynylene or cyclo(3-6C)alkylene; X is oxy, thio, sulphinyl, sulphonyl or imino; Ar is phenylene which may optionally bear one or two substituents or Ar is an optionally substituted 6-membered heterocyclene moiety containing up to three nitrogen atoms; R.sup.1 is hydrogen, (1-6C)alkyl, (3-6C)alkenyl, (3-6C)alkynyl, cyano-(1-4C)alkyl or (2-4C)alkanoyl, or optionally substituted benzoyl; and R.sup.2 and R.sup.3 together form a group of the formula --A.sup.2 --X.sup.2 --A.sup.3 -- which, together with the carbon atom to which A.sup.2 and A.sup.3 are attached, defines a ring having 4 to 7 ring atoms, wherein A.sup.2 and A.sup.3, which may be the same or different, each is (1-4C)alkylene and X.sup.2 is oxy, thio, sulphinyl, sulphonyl or imino; or a pharmaceutically-acceptable salt thereof. The compounds of the invention are inhibitors of the enzyme 5-lipoxygenase.

  该发明涉及式I的杂环##STR1##其中Q是一个可选择地取代的含有一个或两个氮原子的6元单环或10元双环杂环基团；A是(1-6C)烷基、(3-6C)烯基、(3-6C)炔基或环(3-6C)烷基；X是氧、硫、亚砜基、磺酰基或亚胺基；Ar是苯基，可以选择性地带有一个或两个取代基，或Ar是一个可选择地取代的含有最多三个氮原子的6元杂环基团；R.sup.1是氢、(1-6C)烷基、(3-6C)烯基、(3-6C)炔基、氰基-(1-4C)烷基或(2-4C)烷酰基，或可选择地取代的苯甲酰基；而R.sup.2和R.sup.3一起形成一个式--A.sup.2--X.sup.2--A.sup.3--的基团，与A.sup.2和A.sup.3连接的碳原子一起定义具有4到7个环原子的环，其中A.sup.2和A.sup.3，可以相同也可以不同，每个是(1-4C)烷基，而X.sup.2是氧、硫、亚砜基、磺酰基或亚胺基；或其药学上可接受的盐。该发明的化合物是5-脂氧合酶的抑制剂。
• Diaryl ether hetrocycles
  申请人：Imperial Chemical Industries

  公开号：US05208259A1

  公开（公告）日：1993-05-04

  The invention concerns a diaryl ether heterocycle of the formula I, or a pharmaceutically-acceptable salt thereof, ##STR1## wherein Ar.sup.1 is optionally substituted phenyl or naphthyl; X.sup.1 is oxy, thio, sulphinyl or sulphonyl; Ar.sup.2 is optionally substituted phenylene, or a 6-membered heterocyclene moiety containing up to three nitrogen atoms; R.sup.1 is (1-6C)alkyl, (3-6C)alkenyl, (3-6C)alkynyl, cyano-(1-4C)alkyl or (2-4C)alkanoyl, or optionally substituted benzoyl; and R.sup.2 and R.sup.3 together form a group of the formula --A.sup.2 --X.sup.2 --A.sup.3 -- wherein each of A.sup.2 and A.sup.3 is (1-4C)alkylene and X.sup.2 is oxy, thio, sulphinyl, sulphonyl or imino. The invention also concerns processes for the manufacture of a diaryl ether heterocycle of the formula I, or a pharmaceutically-acceptable salt thereof, and pharmaceutical compositions containing said heterocycle. The compounds of the invention are inhibitors of the enzyme 5-lipoxygenase.

  该发明涉及公式I的二芳基醚杂环化合物，或其药用可接受的盐，其中Ar.sup.1是可选择取代的苯基或萘基；X.sup.1是氧、硫、亚砜基或磺酰基；Ar.sup.2是可选择取代的苯基，或含有最多三个氮原子的6元杂环烃基；R.sup.1是(1-6C)烷基，(3-6C)烯基，(3-6C)炔基，氰基-(1-4C)烷基或(2-4C)酰基，或可选择取代的苯甲酰基；R.sup.2和R.sup.3共同形成一个式为--A.sup.2--X.sup.2--A.sup.3--的基团，其中A.sup.2和A.sup.3各自是(1-4C)烷基，X.sup.2是氧、硫、亚砜基、磺酰基或亚胺。该发明还涉及制备公式I的二芳基醚杂环化合物或其药用可接受的盐的方法，以及含有该杂环化合物的药物组合物。该发明的化合物是5-脂氧合酶的抑制剂。
• A New General Synthesis of 2,2-Dialkyl-2,3-dihydro-4H-pyran-4-ones and Their Application for thein situ Preparation of Electron-Rich Dienes in Carbonyl-Alkyne Exchange Reactions with Acetylenes
  作者：Daniel Obrecht

  DOI：10.1002/hlca.19910740106

  日期：1991.1.30

  reactions with electron-poor alkynes VII to yield the highly substituted aromatic compounds VIII and IX. These reactions proceed in good yields and with excellent degree of regioselectivity. Aryl-substituted 2,2-dialkyl-2,3-dihydro-4H-pyran-4-ones III (R1 = Ar) subsequently yield highly substituted biaryls. Reaction mechanisms are presented for the formation of the 2,2-dialkyl-2,3-dihydro-4H-pyran-4-ones

  II和III型取代的2,2-二烷基-2,3-二氢-4 H-吡喃-4-酮是通过酸催化环化相应的取代炔基酮I制备的，收率良好至优异（方案1）。这些2,2-二烷基-2,3-二氢-4 H-吡喃-4-酮II和III已用于在羰基炔烃交换中原位制备IV - VI型高反应性二烯（方案2）与贫电子炔烃VII反应生成高度取代的芳族化合物VIII和IX。这些反应以良好的收率和优异的区域选择性进行。芳基取代的2，2-二烷基-2，3-二氢-4 H-吡喃-4-酮III（R 1＝ Ar）随后产生高度取代的联芳基。提出了形成2，2-二烷基-2，3-二氢-4 H-吡喃-4-酮以及与贫电子乙炔的羰基炔交换反应的反应机理。