tert-butyl 5-(4-methoxyphenyl)-2-phenylthiazole-4-carboxylate | 1259374-83-8

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 唑类
• 英文名称: tert-butyl 5-(4-methoxyphenyl)-2-phenylthiazole-4-carboxylate
• 英文别名: Tert-butyl 5-(4-methoxyphenyl)-2-phenyl-1,3-thiazole-4-carboxylate；tert-butyl 5-(4-methoxyphenyl)-2-phenyl-1,3-thiazole-4-carboxylate
• CAS: 1259374-83-8
• 化学式: C₂₁H₂₁NO₃S
• 分子量: 367.469
• InChiKey: RDJRLGWCIVPUPP-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  5.4
• 重原子数：
  26
• 可旋转键数：
  6
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.24
• 拓扑面积：
  76.7
• 氢给体数：
  0
• 氢受体数：
  5

反应信息

• 作为产物：
  描述：

  4-[(4-methoxyphenyl)(methylthio)methylene]-2-phenyloxazol-5(4H)-one 在 劳森试剂 作用下， 以 甲苯 为溶剂， 生成 tert-butyl 5-(4-methoxyphenyl)-2-phenylthiazole-4-carboxylate
  参考文献：
  名称：

  Synthesis of 2,4,5-Trisubstituted Thiazoles via Lawesson’s Reagent-Mediated Chemoselective Thionation–Cyclization of Functionalized Enamides

  摘要：

  An efficient route to 2-phenyl/(2-thienyl)-5-(het)aryl/(methylthio)-4-functionalized thiazoles via one-step chemoselective thionation-cyclization of highly functionalized enamides mediated by Lawesson's reagent is reported. These enamide precursors are obtained by nucleophilic ring-opening of 2-phenyl/(2-thienyl)-4-[bis(methylthio)/(methylthio)(het)arylmethylene]-5-oxazolones with alkoxides and a variety of primary aromatic/aliphatic amines or amino acid esters, leading to the introduction of an ester, an N-substituted carboxamide, or a peptide functionality in the 4-position of the product thiazoles.

  DOI：

  10.1021/jo401208u

文献信息

• Carbonates: eco-friendly solvents for palladium-catalysed direct arylation of heteroaromatics
  作者：Jia Jia Dong、Julien Roger、Cécile Verrier、Thibaut Martin、Ronan Le Goff、Christophe Hoarau、Henri Doucet

  DOI：10.1039/c0gc00229a

  日期：——

  The palladium-catalysed direct 2-, 4- or 5-arylation of a wide range of heteroaromatics with aryl halides proceed in moderate to good yields using the eco-friendly solvents carbonates. The best yields were obtained using benzoxazole or thiazole derivatives. The arylation of furan, thiophene, pyrrole, imidazole or isoxazole derivatives was found to require a more elevated reaction temperature.

  这 钯环保型芳烃卤化物催化的各种杂芳族化合物与芳基卤化物的直接2-，4-或5-芳基化反应均能以中等至良好的收率进行 溶剂碳酸盐。使用以下方法可获得最佳产量苯并恶唑 或者 噻唑衍生品。这芳基化 的 呋喃， 噻吩， 吡咯， 咪唑 或者 异恶唑 发现衍生物需要更高的反应温度。
• Mechanism Selection for Regiocontrol in Base-Assisted, Palladium-Catalysed Direct CH Coupling with Halides: First Approach for Oxazole- and Thiazole-4-Carboxylates
  作者：Laure Théveau、Cécile Verrier、Pierrik Lassalas、Thibaut Martin、Georges Dupas、Olivier Querolle、Luc Van Hijfte、Francis Marsais、Christophe Hoarau

  DOI：10.1002/chem.201101615

  日期：2011.12.16

  Both base‐assisted non‐concerted metallation–deprotonation (nCMD) and concerted metallation–deprotonation (CMD) have been identified as two potent operating mechanisms in palladium‐catalysed direct CH coupling of oxazole and thiazole‐4‐carboxylate esters with halides through base‐ and solvent‐effect experiments. Novel C2‐ and C5‐selective CMD direct arylation procedures in oxazole‐ and thiazole‐4‐carboxylate

  两个基地辅助非一致金属化-去质子化（NCMD）和协同金属化-去质子化（CMD）已被确定为在钯催化的直接C上两个有效的操作机构通过与卤化物恶唑的耦合和噻唑-4-羧酸酯ħ碱和溶剂效应实验。然后通过控制电子和空间因素之间的平衡，设计了恶唑和噻唑-4-羧酸酯系列中新颖的C2和C5选择性CMD直接芳基化方法。值得注意的是，钯催化剂和底物之间的电荷相互作用被确定为控制选择性和减少CMD反应中空间因素的影响的参数。