3-n-butyl-1(2H)-isoquinolinone | 132-90-1

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 异喹啉及其衍生物
• 英文名称: 3-n-butyl-1(2H)-isoquinolinone
• 英文别名: 3-n-butylisoquinolin-1(2H)-one；3-Butylisoquinolin-1(2H)-one；3-butyl-1(2H)-isoquinolinone；3-butyl-1(2H)-isoquinolone；3-butylisoquinolin-1-one；3-Butylisocarbostyril；3-butyl-2H-isoquinolin-1-one
• CAS: 132-90-1
• 化学式: C₁₃H₁₅NO
• 分子量: 201.268
• InChiKey: KLOZBWBOFYKMQT-UHFFFAOYSA-N

物化性质

• 熔点：
  138-139 °C
• 沸点：
  394.8±35.0 °C(Predicted)
• 密度：
  1.055±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  3
• 重原子数：
  15
• 可旋转键数：
  3
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.31
• 拓扑面积：
  29.1
• 氢给体数：
  1
• 氢受体数：
  1

反应信息

• 作为反应物：
  描述：

  3-n-butyl-1(2H)-isoquinolinone 在 溴 作用下， 以 溶剂黄146 为溶剂， 反应 0.5h， 以86%的产率得到3-butyl-4-bromo-1(2H)-isoquinolinone
  参考文献：
  名称：

  稠合杂芳族环系统。二十四。一氧化碳存在下钯催化的2-取代的苯乙炔环化反应

  摘要：

  在碱性条件下，在一氧化碳和甲醇存在下，钯催化的2-炔基苯胺和2-炔基苯酚的反应，依次得到环化/羰基化产物，2-甲基取代的吲哚和苯并[ b ]-呋喃-3-羧酸酯。2-炔基苯甲酰胺的类似反应得到3-亚烷基亚异吲哚衍生物。

  DOI：

  10.1016/s0040-4020(01)89295-4
• 作为产物：
  描述：

  N-丙-2-烯基苯甲酰胺 在 盐酸 作用下， 以 1,4-二氧六环 为溶剂， 反应 6.0h， 生成 3-n-butyl-1(2H)-isoquinolinone
  参考文献：
  名称：

  Heteroatom-directed metalation. Lithiation of N-propenylbenzamides and N-propenyl-o-toluamides. Novel routes to ortho-substituted primary benzamide derivatives and N-unsubstituted isoquinolin-1(2H)-ones

  摘要：

  Reaction of N-propenylbenzamides 4 and 9, obtained by LDA-induced isomerization of the corresponding N-allylbenzamides 1, 8, and 14, with 2 equiv of sec-butyllithium or tert-butyllithium at low temperature regiospecifically generates the highly reactive N,ortho-dilithiated species (e.g., 5 and 17). These dilithio species react avidly with a wide spectrum of electrophilic reagents, including alkyl halides, giving adducts which on hydrolysis with warm 50% aqueous acetic acid are converted into ortho-substituted primary benzamides in excellent yields. Ortho-lithiation of N-propenylbenzamides is thus formally equivalent to ortho-lithiation of primary benzamides themselves. The utility of this important, previously unknown, synthetic operation is enhanced by the well-known facility with which the primary amide moiety can be transformed into other useful functional groups, as exemplified by the synthesis of 2-methoxy-6-methylbenzoic acid (12) and 2-methoxy-6-methylbenzonitrile (13) from N-propenyl-2-methoxybenzamide (9), N-Propenyl-o-toluamide (7) undergoes regiospecific dilithiation on nitrogen and on the methyl group under conditions analogous to those used for the N-propenylbenzamides. These dilithio species react with DMF or "Weinreb type" amides to give condensation products which cyclize to N-propenylisoquinolin-1(2H)-ones under midly acidic conditions. Removal of the N-propenyl moiety under more strongly acidic conditions provides N-unsubstituted isoquinolin-1(2H)-ones with high overall efficiency. This process is exemplified by the synthesis of isoquinolin-1(2H)-one (23) and its 3-n-butyl congener 26 from N-propenyl-2-methylbenzamide (7).

  DOI：

  10.1021/jo00035a030

文献信息

• A direct anionic cyclization of 2-alkynylbenzonitrile to 3-substituted-1(2H)-isoquinolones and 3-benzylideneisoindol-2-ones initiated by methoxide addition
  作者：Ming-Jung Wu、Li-Juan Chang、Li-Mei Wei、Chi-Fong Lin

  DOI：10.1016/s0040-4020(99)00812-1

  日期：1999.11

  2-(2-alkylethynyl)benzonitrile with sodium methoxide in refluxing methanol for 12 h gave 3-alkyl-1(2H)-isoquinolone in modest yield. Under the same reaction conditions, methanolysis of 2-(2-arylethynyl)benzonitrile lead to the formation of 3-alkylidene isoindol-1-one. Partial hydrolysis of 2-(1-hexynyl)benzonitrile to the corresponding benzamide, followed by treatment of the benzamide with sodium methoxide

  在回流的甲醇中用甲醇钠处理2-（2-烷基乙炔基）苄腈12小时，得到3-烷基-1（2H）-异喹诺酮，收率适中。在相同的反应条件下，2-（2-芳基乙炔基）苄腈的甲醇分解导致3-亚烷基异吲哚-1-酮的形成。2-（1-己炔基）苄腈部分水解成相应的苯甲酰胺，然后在回流的甲醇中用甲醇钠处理苯甲酰胺，以49％的收率得到3-亚戊叉基异吲哚-1-酮。这表明苯甲酰胺不参与该环化反应。
• Gold- or Silver-Catalyzed Syntheses of Pyrones and Pyridine Derivatives: Mechanistic and Synthetic Aspects
  作者：Johannes Preindl、Kévin Jouvin、Daniel Laurich、Günter Seidel、Alois Fürstner

  DOI：10.1002/chem.201503403

  日期：2016.1.4

  3‐Oxo‐5‐alkynoic acid esters, on treatment with a carbophilic catalyst, undergo 6‐endo‐dig cyclization reactions to furnish either 2‐pyrones or 4‐pyrones in high yields. The regiochemical course can be dialed in by the proper choice of the alcohol part of the ester and the π‐acid. This transformation is compatible with a variety of acid‐sensitive groups as witnessed by a number of exigent applications

  用嗜热催化剂处理的3-氧代-5链烷酸酯经过6内切环化反应以高产率提供2吡喃酮或4吡喃酮。的区域化学过程可以用酯和π-酸的醇部分的适当选择被拨出英寸 这种转化与多种对酸敏感的基团相容，这在天然产物的全合成中有许多紧急应用，包括伪吡喃酮A，组氨酸，helhelinin A，radininol家族，neurymenolide，violapyrone，wailupemycin和未命名的溴化铵。海洋来源的4-吡喃酮。尽管反应在中性介质中进行得很好，但是当HOAc用作溶剂或助溶剂时，速率会大大提高，这被认为有利于反应性烯基-金中间体的原脱氢，因为它可能是催化循环的速率决定步骤。 。这类中间体容易发生螯合，因为它是一种螯合催化剂的非循环事件。这一概念与文献数据相符，并得到了孤立的支持。宝石渗析的复合物12和15。此外，从容易获得的亚氨酸酯前体开始，银催化可以获得2-烷氧基吡啶和2-烷氧基异喹啉衍生物。
• Condensed heteroaromatic ring systems. VIII Synthesis of 3-substituted isocoumarins from o-halobenzoic acid derivatives.
  作者：TAKAO SAKAMOTO、MASAYUKI AN-NAKA、YOSHINORI KONDO、HIROSHI YAMANAKA

  DOI：10.1248/cpb.34.2754

  日期：——

  The hydration of o-ethynylbenzoic acid derivatives, such as ethyl o-ethynylbenzoate, o-ethynylbenzonitrile, and o-ethynylbenzamide, in sulfuric acid in the presence of marcuric sulfate, afforded 3-substituted isocoumarins. The palladium-catalyzed reaction of o-halobenzoic acid derivatives with terminal acetylenes to obstain the starting materials for the cyclization is also described.

  在硫酸中，存在汞硫酸盐的情况下，o-乙炔苯甲酸衍生物，例如乙基o-乙炔苯甲酸酯、o-乙炔苯腈和o-乙炔苯酰胺的水合反应，获得了3-取代的异香豆素。此外，还描述了o-卤苯甲酸衍生物与末端炔烃的钯催化反应，以获取环化的起始材料。
• Gold vs Rhodium Catalysis: Tuning Reactivity through Catalyst Control in the C–H Alkynylation of Isoquinolones
  作者：Aslam C. Shaikh、Dinesh R. Shinde、Nitin T. Patil

  DOI：10.1021/acs.orglett.6b00175

  日期：2016.3.4

  A site-selective C-4/C-8 alkynylation of isoquinolones catalyzed by gold and rhodium complexes is reported. A broad range of synthetically useful functional groups (−F, −Cl, −Br, −CF3, −OMe, alkyl, etc.) were tolerated, providing an efficient and robust protocol for the synthesis either C-4- or C-8-alkynylated isoquinolones.

  据报道，由金和铑配合物催化的异喹诺酮类化合物的位点选择性C-4 / C-8炔基化反应。宽泛的合成有用的官能团（-F，-Cl，-Br，-CF 3，-OMe，烷基等）可耐受，从而为合成C-4-或C-提供了有效而稳定的方案8-炔基异喹诺酮。
• Direct Access to Cobaltacycles via C–H Activation: <i>N</i>-Chloroamide-Enabled Room-Temperature Synthesis of Heterocycles
  作者：Xiaolong Yu、Kehao Chen、Shan Guo、Pengfei Shi、Chao Song、Jin Zhu

  DOI：10.1021/acs.orglett.7b02632

  日期：2017.10.6

  Cobaltacycle synthesis via C–H activation has been achieved for the first time, providing key mechanistic insight into cobalt catalytic chemistry. N-Chloroamides are used as a directing synthon for cobalt-catalyzed room-temperature C–H activation and construction of heterocycles. Alkynes as coupling partners allow convenient access to isoquinolones, a class of synthetically and pharmaceutically important

  首次通过C–H活化合成钴环化合物，提供了对钴催化化学的关键机理的见解。N-氯酰胺用作钴催化的室温C–H活化和杂环构建的直接合成子。炔烃作为偶联伙伴可以方便地获得异喹诺酮，这是一类重要的合成和药学上重要的化合物。广泛的底物范围使得可以将各种各样的取代模式结合到杂环支架中。