N-methoxy-N-methyl-trans-3-methylcinnamamide | 243665-12-5

• 分子结构分类: 有机化合物 - 苯丙烷和聚酮 - 肉桂酸及其衍生物
• 英文名称: N-methoxy-N-methyl-trans-3-methylcinnamamide
• 英文别名: (E)-N-methoxy-N-methyl-3-(3-tolyl)acrylamide；(E)-N-methoxy-N-methyl-3-m-tolylacrylamide；(E)-N-methoxy-N-methyl-3-(3-methylphenyl)prop-2-enamide
• CAS: 243665-12-5
• 化学式: C₁₂H₁₅NO₂
• 分子量: 205.257
• InChiKey: MIDHLOGHMQFIPQ-BQYQJAHWSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.2
• 重原子数：
  15
• 可旋转键数：
  3
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.25
• 拓扑面积：
  29.5
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  N-methoxy-N-methyl-trans-3-methylcinnamamide 在 lithium aluminium tetrahydride 、 potassium tert-butylate 、 sodium hydride 、 三乙基硼氢化锂 、 三乙胺 作用下， 以 四氢呋喃 、 乙醚 、 二甲基亚砜 为溶剂， 反应 41.5h， 生成 trans-1-methyl-2-(3-methylphenyl)cyclopropane
  参考文献：
  名称：

  Picosecond radical kinetics. Rate constants for ring openings of 2-aryl-substituted cyclopropylcarbinyl radicals

  摘要：

  The kinetics of ring openings of a series of eight (trans-2-arylcyclopropyl)methyl radicals (1) were studied by indirect kinetic methods using Barton's PTOC esters as radical precursors and reaction with PhSeH as the competition reaction. The substituents were CF3, F, Me, and OMe located on both the para and meta positions of the aromatic ring. Syntheses of the radical precursors and the products of the radical reactions are described. Kinetics were determined between -43 and 25 degrees C in four cases (CF, and OMe substituents) and at 0 and 25 degrees C in the other four cases. The rate constants at 25 degrees C ranged from 1.0 x 10(11) s(-1) (p-CH3) to 4.1 x 10(11) s(-1) (p-CF,). The relatively large acceleration of the p-CF3 group, ca. 2.5 times as fast as the parent system with Ar = Ph, correlates well with Adam's Delta D substituent parameters but not with other radical substituent parameters. These calibrated radical rearrangements provide a new set of ultrafast reactions that can be applied in mechanistic probe studies.

  DOI：

  10.1139/cjc-77-5-6-1123
• 作为产物：
  描述：

  diethyl N-methoxy-N-methylphosphonoacetamide 、 3-甲基苯甲醛 在 sodium hydride 作用下， 以 四氢呋喃 为溶剂， 反应 2.5h， 以84%的产率得到N-methoxy-N-methyl-trans-3-methylcinnamamide
  参考文献：
  名称：

  通过相转移催化亲核试剂向二乙烯基酮的双加成立体选择性地合成环己酮。

  摘要：

  功能化的环己酮以极高的收率和非对映选择性形成，这是由相转移催化的活性亚甲基原核亲核试剂向不对称二乙烯基酮的两次加成反应形成的。

  DOI：

  10.1021/jo101713d

文献信息

• Ionic liquids, microwave irradiation, and the synthesis of aryl Weinreb amides
  作者：Ahmed Al Otaibi、Adam McCluskey

  DOI：10.1007/s00706-017-2089-3

  日期：2018.3

  AbstractThe Heck coupling of aryl halides and N-methoxy-N-methylacrylamide was investigated in the room-temperature ionic liquids [BMIM][PF6], [BMIM][Br], [BMIM][BF4], [BMIM][OH], [BMIM][HCOO], EAN, PAN, and ETAN. Excellent yields of the expected N-methoxy-N-methylcinnamamides (ca 90%) and purity (> 96%) were afforded on simple diethyl ether extraction from [BMIM][PF6] and [BMIM][OH]. The described

  摘要在室温离子液体[BMIM] [PF 6 ]，[BMIM] [Br]，[BMIM] [BF 4 ]，[BMIM] [中，对芳基卤化物与N-甲氧基-N-甲基丙烯酰胺的Heck偶联进行了研究。OH]，[BMIM] [HCOO]，EAN，PAN和ETAN。从[BMIM] [PF 6 ]和[BMIM] [OH]进行简单的乙醚萃取，可获得预期N-甲氧基-N-甲基肉桂酰胺的优异收率（约90％）和纯度（> 96％）。所描述的方法具有高度的底物耐受性，并且甲基，甲氧基，氟，三氟甲基，酯，氰基，羟基，萘基和喹诺酮部分具有良好的耐受性。-NH 2和-NO 2收率低或没有反应部分。微波辐射的使用将反应时间从3小时（热）减少到5-15分钟，对反应结果没有实质性影响。 图形概要