3-allyl-2-methoxypyridine | 1369964-26-0

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: 3-allyl-2-methoxypyridine
• 英文别名: 2-Methoxy-3-prop-2-enylpyridine；2-methoxy-3-prop-2-enylpyridine
• CAS: 1369964-26-0
• 化学式: C₉H₁₁NO
• 分子量: 149.192
• InChiKey: ZWYFAWFAUDBWJP-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.2
• 重原子数：
  11
• 可旋转键数：
  3
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.22
• 拓扑面积：
  22.1
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为产物：
  描述：

  3-溴-2-甲氧基吡啶 、 3-溴丙烯 在 正丁基锂 、 异丙基氯化镁 作用下， 以 四氢呋喃 、 正己烷 为溶剂， 反应 0.75h， 以78%的产率得到3-allyl-2-methoxypyridine
  参考文献：
  名称：

  二丁基（异丙基）镁酸锂（1-）和氯化锂通过卤素-镁交换进行非低温合成功能化的2-甲氧基吡啶

  摘要：

  使用二丁基（异丙基）镁酸锂（1-）和相应的溴或碘类似物制备在3-，5-或6-位官能化的2-甲氧基吡啶和在3-位官能化的2,6-二甲氧基吡啶。非低温条件下的氯化锂。根据在两种镁酸盐之间的选择以及反应介质中氯化锂的存在与否，对程序进行了优化。 吡啶-镁-锂-有机金属试剂

  DOI：

  10.1055/s-0031-1289687

文献信息

• Exploiting the trifluoroethyl group as a precatalyst ligand in nickel-catalyzed Suzuki-type alkylations
  作者：Yi Yang、Qinghai Zhou、Junjie Cai、Teng Xue、Yingle Liu、Yan Jiang、Yumei Su、Lungwa Chung、David A. Vicic

  DOI：10.1039/c9sc00554d

  日期：——

  A bis-trifluoroethyl coordinated nickel/bipyridine complex has been developed as efficient precatalyst for diverse Suzuki-type alkylations which features unconventional precatalyst initiation mode.

  已开发出一种双三氟乙基配位的镍/双吡啶配合物，作为高效的预催化剂，用于多样化的铃木型烷基化反应，具有非传统的预催化剂启动模式。
• Deprotonative metalation of aromatic compounds using mixed lithium–iron combinations
  作者：Elisabeth Nagaradja、Floris Chevallier、Thierry Roisnel、Viatcheslav Jouikov、Florence Mongin

  DOI：10.1016/j.tet.2012.02.019

  日期：2012.4

  The deprotonation of 2-methoxypyridine was attempted using putative (TMP)(3)FeLi prepared from different iron sources. Using iodine to intercept the metalated 2-methoxypyridine, the best result was obtained from FeBr2 (1 equiv) using THF at room temperature: nevertheless, in addition to the expected iodide, the corresponding 2,2'-dimer was obtained (86% total yield). The origin of the competitive formation of the 2,2'-dimer was not identified but mechanisms were suggested to explain its formation. It was observed that the nature of the electrophile employed to trap the 3-metalated 2-methoxypyridine has a strong impact on this dimer formation, the latter being favored using iodine (35% yield), but also benzophenone (28%), benzoyl chloride (22%), methyl iodide (27%), allyl bromide (15%), benzyl bromide (41%), and tetramethylthiuram disulphide (36%); for this reason, the yields of the expected derivatives were only 51, 15, 62, 0, <5, 18, and 0%, respectively. In contrast, using aldehydes readily led to the expected pyridine alcohols without dimerization (59% yield using 3,4,5-trimethoxybenzaldehyde and 66% yield using pivalaldehyde). 2,6-Dimethoxypyridine (in 68% yield), anisole (47%), 2,4-dimethoxypyrimidine (50% at C5 and 3% at C6), 2-fluoropyridine (64%), and thiophene (49%) were similarly converted into the corresponding alcohols after subsequent trapping with pivalaldehyde. Using iodine to trap the 2-metalated anisole did not lead to dimer formation, and 2-iodoanisole was isolated in 71% yield. (C) 2012 Elsevier Ltd. All rights reserved.