1-氯-4-(2-碘乙炔基)苯 | 89891-82-7

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 中文名称: 1-氯-4-(2-碘乙炔基)苯
• 英文名称: (4-chlorophenyl)ethynyl iodide
• 英文别名: 1-chloro-4-(iodoethynyl)benzene；Benzene, 1-chloro-4-(iodoethynyl)-；1-chloro-4-(2-iodoethynyl)benzene
• CAS: 89891-82-7
• 化学式: C₈H₄ClI
• 分子量: 262.477
• InChiKey: YPTYBHDVZXSARL-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.6
• 重原子数：
  10
• 可旋转键数：
  1
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  0
• 氢给体数：
  0
• 氢受体数：
  0

反应信息

• 作为反应物：
  描述：

  1-氯-4-(2-碘乙炔基)苯 在 水 、 copper(II) acetate monohydrate 、 三氟乙酸 作用下， 反应 6.0h， 以95%的产率得到2-iodo-4'-chloroacetophenone
  参考文献：
  名称：

  可回收催化系统首次催化卤代炔烃水合

  摘要：

  基于 Cu(OAc)2 催化剂和 TFA（三氟乙酸）促进剂的组合，卤代炔烃水合生成 α-卤代甲基酮。这是首次通过可回收催化系统催化的水合反应合成氯/溴/碘甲基酮。该催化体系具有广泛的底物范围和优异的化学选择性，并且该程序还可以按比例放大。

  DOI：

  10.1002/ejoc.201501198
• 作为产物：
  描述：

  对氯苯丙炔酸 在 N-碘代丁二酰亚胺 、 三乙胺 作用下， 以 二氯甲烷 为溶剂， 反应 0.08h， 以91%的产率得到1-氯-4-(2-碘乙炔基)苯
  参考文献：
  名称：

  Catalytic Hunsdiecker Reaction of α,β-Unsaturated Carboxylic Acids:  How Efficient Is the Catalyst?

  摘要：

  UV-vis spectrophotometry is utilized to measure the relative efficiency of lithium acetate, tetrabutylammonium. trifluoroacetate, and triethylamine as catalysts for the conversion of 4-methoxycinnamic acid to 4-methoxy-beta-bromostyrene. In acetonitrile-water as solvent, the efficiency order is lithium acetate > triethylamine > tetrabutylammonium trifluoroacetate. For triethylamine as catalyst, solvent-dependent order is acetonitrile-water > dichloromethane > acetonitrile. Using triethylamine as catalyst (5-20 mol %), cinnamic acids, and propiolic acids are converted to corresponding beta-bromostyrenes and 1-halo-1-alkynes in 60-98% isolated yields within 1-5 min.

  DOI：

  10.1021/jo025868h

文献信息

• Metal-free hydration of aromatic haloalkynes to α-halomethyl ketones
  作者：Min Ye、Yuelu Wen、Huifang Li、Yejuan Fu、Qinghao Wang

  DOI：10.1016/j.tetlet.2016.09.088

  日期：2016.11

  A highly regioselective and efficient metal-free hydration of aromatic haloalkynes to α-halomethyl ketones using cheap tetrafluoroboric acid as catalyst is described. The protocol is conducted under convenient conditions and affords products in good to excellent yields, with broad substrate scope, including a variety of aromatic alkynyl chlorides, alkynyl bromides, and alkynyl iodides.

  描述了使用廉价的四氟硼酸作为催化剂的芳香族卤代炔烃的高度区域选择性和有效的无金属水合为α-卤代甲基酮。该方案是在方便的条件下进行的，并以良好的收率提供优良的产品，具有广泛的底物范围，包括各种芳族炔基氯，炔基溴化物和炔基碘化物。
• An efficient heterogeneous gold(I)-catalyzed hydration of haloalkynes leading to α-halomethyl ketones
  作者：Sifan Hu、Dayi Liu、Chenyu Yan、Mingzhong Cai

  DOI：10.1080/00397911.2018.1528616

  日期：2018.12.2

  Abstract A highly efficient heterogeneous gold(I)-catalyzed hydration of haloalkynes has been developed that proceeds smoothly under mild and neutral conditions and provides a general and practical route for the synthesis of a variety of α-halomethyl ketones with high atom-economy, excellent yield, and recyclability of the gold(I) catalyst. The presented method delivers an attractive alternative to

  摘要 开发了一种高效的多相金（I）催化卤代炔烃的水合反应，在温和、中性条件下顺利进行，为合成多种高原子经济性、优异的α-卤代甲基酮提供了一条通用实用的途径。金（I）催化剂的产率和可回收性。所提出的方法为酮的经典 α-卤化提供了一种有吸引力的替代方法。图形概要
• Highly Efficient Synthesis of<i>α</i>-Halomethylketones via Ce(SO₄)₂/Acid Co-Catalyzed Hydration of Alkynes
  作者：Huaxu Zou、Jun Jiang、Niannian Yi、Wenqiang Fu、Wei Deng、Jiannan Xiang

  DOI：10.1002/cjoc.201600417

  日期：2016.12

  A general atom‐economical approach for the synthesis of α‐halomethyl ketones is demonstrated through Ce(SO4)2/acid co‐catalyzed hydration of a wide range of haloalkynes. The reactions are conducted under convenient conditions and provide products with excellent regioselectivity in good to excellent yields, with broad substrate scope. This protocol is an alternative to conventional α‐halogenation of

  通过广泛的卤代炔烃的Ce（SO 4）2 /酸共催化水合作用，证明了一种合成α-卤代甲基酮的一般原子经济方法。反应在便利的条件下进行，并提供具有优异的区域选择性的产物，具有良好的产率至优异的产率，并具有广泛的底物范围。该协议是传统的酮α-卤代反应的替代方法。
• In(OTf) 3 /acid co-catalyzed hydration of 1-haloalkynes to α-halomethyl ketones
  作者：Ming Zeng、Rui-Xue Huang、Wen-Yi Li、Xiao-Wen Liu、Fu-Ling He、Yi-Yuan Zhang、Fang Xiao

  DOI：10.1016/j.tet.2016.04.049

  日期：2016.7

  described. This method provides ready access to α-chloromethyl ketones, α-bromomethyl ketones and α-iodomethyl ketones in moderate to high yields from simple, inexpensive starting materials. A broad substrate scope is achieved, and the reaction is compatible with various functional groups, including alkoxy, trifluoromethyl, halide, hydroxyl, cyclohexyl, and heterocyclic groups.

  描述了新型和有效的In（OTf）3和HOAc协同催化1-卤代炔烃的水合反应。该方法可通过简单，廉价的起始原料以中等到高收率容易地获得α-氯甲基酮，α-溴甲基酮和α-碘甲基酮。获得了广泛的底物范围，并且该反应与各种官能团相容，包括烷氧基，三氟甲基，卤化物，羟基，环己基和杂环基团。
• Metal-Free Method for Direct Synthesis of Functionalized β-Ketoenamines
  作者：Xiaobao Zeng、Chulong Liu、Weiguang Yang、Yunxiang Weng、Xinyan Wang、Yuefei Hu

  DOI：10.1021/acs.joc.8b03247

  日期：2019.3.15

  A new method for direct synthesis of β-ketoenamines was developed by a BF3·OEt2-catalyzed cyclization of 1-iodoalkyne and α-keto acid followed by an amine-mediated ring-opening in one pot. Its metal-free conditions allowed the easy synthesis of those products bearing the transition metal-sensitive functional groups. Its three-component process achieved wide range of functionalized products.

  通过BF 3 ·OEt 2催化1-碘炔和α-酮酸环化，然后在一个罐中进行胺介导的开环，开发了一种直接合成β-酮烯胺的新方法。它的无金属条件使其易于合成带有过渡金属敏感官能团的产物。其三组分工艺实现了广泛的功能化产品。