2-(2-chlorophenyl)-4,5-dihydrooxazole | 82891-76-7

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 英文名称: 2-(2-chlorophenyl)-4,5-dihydrooxazole
• 英文别名: 2-(2-Chlorophenyl)-4,5-dihydro-1,3-oxazole
• CAS: 82891-76-7
• 化学式: C₉H₈ClNO
• 分子量: 181.622
• InChiKey: SEXCLRTURMVPBZ-UHFFFAOYSA-N

物化性质

• 沸点：
  90 °C(Press: 0.015 Torr)
• 密度：
  1.28±0.1 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  2.1
• 重原子数：
  12
• 可旋转键数：
  1
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.22
• 拓扑面积：
  21.6
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  2-(2-chlorophenyl)-4,5-dihydrooxazole 以94%的产率得到
  参考文献：
  名称：

  PRIDGEN, L. N., J. ORG. CHEM., 1982, 47, N 22, 4319-4323

  摘要：

  DOI：
• 作为产物：
  描述：

  2-chloro-N-(2-chloroethyl)benzamide 在 sodium hydride 作用下， 以 四氢呋喃 为溶剂， 反应 0.5h， 生成 2-(2-chlorophenyl)-4,5-dihydrooxazole
  参考文献：
  名称：

  Oxazolines. 3. Regioselective synthesis of 2-(monosubstituted phenyl) and/or unsymmetrically 2-(disubstituted phenyl) 2-oxazolines by cross-coupling Grignard reagents to (haloaryl)-2-oxazolines

  摘要：

  DOI：

  10.1021/jo00143a029

文献信息

• S–Co(II) cascade catalysis: cyclocondensation of aromatic nitriles with alkamine
  作者：Haixia Ge、Ping Liu、Xiangnan Li、Wei Sun、Jianli Li、Bingqin Yang、Zhen Shi

  DOI：10.1016/j.tet.2013.05.132

  日期：2013.8

  A solvent-free S/Co(NO3)2 cascade catalyzed cyclocondensation reaction of aromatic nitriles with 3-amino-1-propanol or 2-aminoethanol has been successfully developed under thermal and microwave conditions. By this two-component protocol, mono- and bis-oxazines and oxazolines were selectively synthesized both in good to excellent yields and short reaction times. This catalytic system exhibits excellent

  在热和微波条件下，已成功开发了无溶剂的S / Co（NO 3）2芳族腈与3-氨基-1-丙醇或2-氨基乙醇的级联催化环缩合反应。通过这种两组分方案，可以以良好至极佳的收率和较短的反应时间选择性地合成单-和双-恶嗪和恶唑啉。该催化系统具有出色的化学选择性，可以重复使用至少7次，而不会在后续反应中显着降低活性。
• Highly efficient synthesis of β-nitrate ester carboxamides through the ring-opening of 2-oxazolines
  作者：Kai Qiao、Xin Yuan、Li Wan、Ming-Wei Zheng、Dong Zhang、Bing-Bing Fan、Zhe-Chen Di、Zheng Fang、Kai Guo

  DOI：10.1039/c7gc02682j

  日期：——

  A novel method for the synthesis of β-nitrate ester carboxamides using non-corrosive tert-butyl nitrite (TBN) as the nitro source and easily available oxygen as the oxidant has been developed. Variously substituted 2-oxazolines were efficiently ring-opened to deliver the corresponding products in excellent yields. Notably, this reaction provides fast access to pharmaceuticals such as nicorandil.

  已经开发出一种新的合成方法，该方法使用非腐蚀性的亚硝酸叔丁酯（TBN）作为硝基源，并利用易获得的氧气作为氧化剂来合成β-硝酸酯羧酰胺。有效地开环了各种取代的2-恶唑啉，以优异的产率递送相应的产物。值得注意的是，该反应提供了对药物如尼可地尔的快速访问。
• Oxazolinyl-Assisted Ru(II)-Catalyzed C–H Allylation with Allyl Alcohols and Synthesis of 4-Methyleneisochroman-1-ones
  作者：Diksha Singh、Gangam Srikanth Kumar、Manmohan Kapur

  DOI：10.1021/acs.joc.9b01536

  日期：2019.10.18

  for C-H allylation of aryl oxazolines using allylic alcohols as the coupling partner. The present transformation unravels the unusual reactivity of allylic alcohols in the synthesis of 4-methyleneisochroman-1-ones and C-H-allylated products. A complete switch in the product selectivity was observed with substrate control and tuning the reaction conditions. The approach employs allyl alcohols as an efficient

  我们在本文中报道了使用烯丙醇作为偶联伙伴的芳基恶唑啉的CH烯丙基化的钌催化的，恶唑啉定向的策略。本转化揭示了在4-亚甲基异色满-1-酮和CH-烯丙基化产物的合成中烯丙基醇的异常反应性。通过底物控制和调节反应条件，观察到产物选择性的完全改变。该方法采用烯丙醇作为预活化的烯丙基化剂的有效替代品，以高度选择性的方式获得各种产品。
• A Convenient Synthesis of Oxazolines and Imidazolines from Aromatic Aldehydes with Pyridinium Hydrobromide Perbromide in Water
  作者：Shinsei Sayama

  DOI：10.1055/s-2006-941597

  日期：2006.6

  Various 2-oxazolines were prepared from aromatic aldehydes and 2-aminoethanol with pyridinium hydrobromide per­bromide in water at room temperature. 2-Imidazolines were also obtained in good yields from aromatic aldehydes and ethylenediamine under the same reaction conditions.

  以吡啶溴氢溴化物为催化剂，室温下在水中用芳香醛和2-氨基乙醇制备了多种2-噁唑啉。在相同反应条件下，芳香醛和乙二胺也能获得较高产率的2-咪唑啉。
• Ligandless Nickel-Catalyzed <i>Ortho</i>-Selective Directed Trifluoromethylthiolation of Aryl Chlorides and Bromides Using AgSCF₃
  作者：Tin Nguyen、Weiling Chiu、Xinying Wang、Madeleine O. Sattler、Jennifer A. Love

  DOI：10.1021/acs.orglett.6b02689

  日期：2016.11.4

  A mild protocol for Ni-catalyzed trifluoromethylthiolation of aryl chlorides and bromides is described herein. The method utilizes AgSCF3 as an easily accessible nucleophilic trifluoromethylthiolating reagent and does not require any ligands or additives. Ortho-selectivity is achieved using a variety of directing groups such as imines, pyridines, and oxazolines for 24 examples in up to 95% yield.

  本文描述了Ni催化的芳基氯化物和溴化物的三氟甲基硫醇化的温和方案。该方法利用AgSCF 3作为容易获得的亲核三氟甲基硫醇化试剂，不需要任何配体或添加剂。对于24个实例，使用多种指导基团如亚胺，吡啶和恶唑啉实现邻位选择性，产率高达95％。