(E)-1,4-dimethoxy-2-(prop-1-enyl)benzene | 19785-02-5

• 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: (E)-1,4-dimethoxy-2-(prop-1-enyl)benzene
• 英文别名: 1,4-dimethoxy-2-propenyl-benzene；1,4-Dimethoxy-2-propenyl-benzol；1,4-dimethoxy-2-[(E)-prop-1-enyl]benzene
• CAS: 19785-02-5
• 化学式: C₁₁H₁₄O₂
• 分子量: 178.231
• InChiKey: PPIXTBBFLDNSNH-SNAWJCMRSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.9
• 重原子数：
  13
• 可旋转键数：
  3
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.27
• 拓扑面积：
  18.5
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  (E)-1,4-dimethoxy-2-(prop-1-enyl)benzene 生成 meso-3,4-bis-(2,5-dimethoxy-phenyl)-hexane
  参考文献：
  名称：

  Sisido; Kuyama, 1951, vol. 25, p. 73

  摘要：

  DOI：
• 作为产物：
  描述：

  顺式-2,4,5-三甲氧基-1-丙烯基苯 在 selenium(IV) oxide 、 乙醇 作用下， 生成 (E)-1,4-dimethoxy-2-(prop-1-enyl)benzene
  参考文献：
  名称：

  270.β-Asarone

  摘要：

  DOI：

  10.1039/jr9370001338

文献信息

• High pressure nucleophilic fluoride-ion substitution reactions: formation of fluoroalkylbenzenes
  作者：John M. Gerdes、Robert N. Keil、Alexander T. Shulgin、Chester A. Mathis

  DOI：10.1016/0022-1139(96)03417-3

  日期：1996.6

  kbar or 1 bar pressures. The resultant substitution and elimination reaction product distributions were analyzed. The application of pressure enhanced the progress of the fluoride-ion substitution reactions. The degree of selectivity of the one reaction over the other was found to be a function of tosylate substrate structure and the amount of pressure applied. The exclusive formation of fluoroalkanes

  合成了一系列的1-苯基-2-甲苯磺酰氧基和1-苯基-3-甲苯磺酰氧基烷烃，然后在15 kbar（1.5 GPa），8 kbar或1 bar的压力下在THF中进行氟化四丁基铵的处理。分析了所得的取代和消除反应产物的分布。施加压力增强了氟离子取代反应的进程。发现一个反应相对于另一个反应的选择性程度是甲苯磺酸酯底物结构和所施加压力量的函数。在15 kbar压力下由1-苯基-2-甲苯磺酰氧基烷烃底物独家形成氟烷烃，表明压力法有望用于氟18放射性标记应用。
• InCl₃-Catalyzed [3 + 2] CycloadditionReactions: A Facile Synthesis of<i>trans</i>-Dihydrobenzofuransand Substituted Cyclobutane Derivatives
  作者：J. S. Yadav、B. V. Reddy、G. Kondaji

  DOI：10.1055/s-2003-39175

  日期：——

  1,4-Benzoquinones undergo smoothly [3 + 2] cycloaddition reactions with electron rich alkenes in the presence of 10 mol% indium trichloride or 5 mol% iodine under mild conditions to afford the corresponding 2,3-dihydrobenzofurans in excellent yields with trans-selectivity. Similarly, methyl vinyl ketone reacts with electron rich olefins to produce substituited trans-cyclobutane derivatives.

  在温和条件下，1,4-苯醌与富电子烯烃在 10 mol% 三氯化铟或 5 mol% 碘存在下顺利进行 [3 + 2] 环加成反应，以优异的产率得到相应的 2,3-二氢苯并呋喃和反式-选择性。类似地，甲基乙烯基酮与富电子烯烃反应生成取代的反式-环丁烷衍生物。
• a-ASARY-LALDEHYDE ESTER, PREPARATION METHOD THEREFOR, AND APPLICATION THEREOF
  申请人：NORTHWEST UNIVERSITY

  公开号：US20170260122A1

  公开（公告）日：2017-09-14

  The present invention relates to α-asary-laldehyde ester, a preparation method therefor, and an application thereof. The chemical structure of the related α-asary-laldehyde ester is represented by formula I. A related application is an application of the compound in preparation of drugs for calming, mind tranquillizing, senile dementia resisting, convulsion resisting, epilepsy resisting and depression resisting.

  本发明涉及α-沙尼醛酯、其制备方法及其应用。相关α-沙尼醛酯的化学结构由式I表示。相关应用是将该化合物用于制备镇静、安神、抗老年性痴呆、抗惊厥、抗癫痫和抗抑郁药物。
• Stereoselective isomerisations of 4-(2′,5′-dimethoxyphenyl)-2,5-dimethyl-1,3-dioxolanes and their 2′-chloro-5′-methoxyphenyl analogues. Temperature-dependent diastereoselective formation of isochromanes
  作者：Robin G. F. Giles、Rodney W. Rickards、Badra S. Senanayake

  DOI：10.1039/a704543c

  日期：——

  Stereoselective isomerisations of rel-(2R,4S,5R)-4-(2′,5′-dimethoxyphenyl)-2,5-dimethyl-1,3-dioxolane 1 and the 2∶1 epimeric mixture of rel-(2S,4R,5R)- and rel-(2R,4R,5R)-4-(2′,5′-dimethoxyphenyl)-2,5-dimethyl-1,3-dioxolanes 2 and 3 with titanium tetrachloride at –78 °C afford rel-(1R,3R,4S)- and rel-(1S,3R,4R)-4-hydroxy-5,8-dimethoxy-1,3-dimethylisochromanes 25 and 30, respectively. The yields are only moderate owing to the competing influence of the 2′-methoxy group in the starting dioxolanes, and are improved significantly when this group is replaced by a 2′-chloro substituent. rel-(2R,4S,5R)-4-(2′-Chloro-5′-methoxyphenyl)-2,5-dimethyl-1,3-dioxolane 13 under similar conditions is isomerised smoothly to rel-(1R,3R,4S)-5-chloro-4-hydroxy-8-methoxy-1,3-dimethylisochromane 34 as the sole reaction product. In contrast the C-2 epimers rel-(2R,4R,5R)- and rel-(2S,4R,5R)-4-(2′-chloro-5′-methoxyphenyl)-2,5-dimethyl-1,3-dioxolanes 14 and 15 each favour the formation of rel-(1R,3R,4R)-5-chloro-4-hydroxy-8-methoxy-1,3-dimethylisochromane 36 at –78 °C, while at –95 °C the 1S product 35 predominates. Dioxolane 14 isomerises more rapidly than its C-2 epimer 15, and both these reactions are under kinetic not thermodynamic control.

  rel-(2R,4S,5R)-4-(2–2,5–二甲氧基苯基)-2,5-二甲基-1,3-二氧戊环 1 和 rel- 2–1 差向异构混合物的立体选择性异构化(2S,4R,5R)- 和 rel-(2R,4R,5R)-4-(2-,5-二甲氧基苯基)-2,5-二甲基-1,3-二氧戊环 2 和 3 与四氯化钛在≤78℃下分别得到rel-(1R,3R,4S)-和rel-(1S,3R,4R)-4-羟基-5,8-二甲氧基-1,3-二甲基异色满烷25和30 。由于起始二氧戊环中2′-甲氧基的竞争影响，产率仅适中，并且当该基团被2′-氯取代基取代时，产率显着提高。 rel-(2R,4S,5R)-4-(2â2-Chloro-5â2-methoxy苯基)-2,5-二甲基-1,3-二氧戊环13在相似条件下顺利异构化为rel-(1R, 3R,4S)-5-氯-4-羟基-8-甲氧基-1,3-二甲基异色满34作为唯一的反应产物。相比之下，C-2 差向异构体 rel-(2R,4R,5R)- 和 rel-(2S,4R,5R)-4-(2-2-氯-5-2-甲氧基苯基)-2,5-二甲基- 1,3-二氧戊环 14 和 15 各自有利于在 78°C 下形成 rel-(1R,3R,4R)-5-氯-4-羟基-8-甲氧基-1,3-二甲基异色满 36，而在 95°C 时，1S 产物 35 占主导地位。二氧戊环 14 异构化速度比其 C-2 差向异构体 15 更快，并且这两个反应均受动力学而非热力学控制。
• Dyestuff, dye-sensitized solar cell, and method for manufacturing same
  申请人：JSR Corporation

  公开号：EP2036955A1

  公开（公告）日：2009-03-18

  A dyestuff shown by the formula (1),         ML1L2L3     (1) wherein M represents an element belonging to Group 8 to Group 10 of the long format Periodic Table, L1 and L2 individually represent a bidentate ligand shown by the formula (2), L3 represents a bidentate ligand shown by the formula (3), wherein R1 and R2 individually represent a carboxyl group or a group equivalent to the salt of the carboxyl group, wherein X represents a halogen atom and n is an integer of 0 to 2.

  一种染料，如式(1)所示，ML1L2L3 (1) 其中 M 代表属于长格式元素周期表第 8 族至第 10 族的元素，L1 和 L2 分别代表如式(2)所示的双齿配体，L3 代表如式(3)所示的双齿配体，其中 R1 和 R2 分别代表羧基或相当于羧基盐的基团，其中 X 代表卤素原子，n 是 0 至 2 的整数。

表征谱图