(E)-3-(3,4,5-Trimethoxybenzyl)-2-(3,4,5-trimethoxybenzylidene)butanolide | 110397-80-3

• 分子结构分类: 有机化合物 - 木脂素、新木脂素和相关化合物 - 呋喃类木脂素
• 英文名称: (E)-3-(3,4,5-Trimethoxybenzyl)-2-(3,4,5-trimethoxybenzylidene)butanolide
• 英文别名: (E)-α-(3,4,5-trimethoxybenzylidene)-β-(3,4,5-trimethoxybenzyl)-γ-butyrolactone；(E)-3-(3,4,5-trimethoxy-benzylidene)-4-(3,4,5-trimethoxybenzyl)-4,5-dihydro-2(3H)-furanone；(3E)-4-[(3,4,5-trimethoxyphenyl)methyl]-3-[(3,4,5-trimethoxyphenyl)methylidene]oxolan-2-one
• CAS: 110397-80-3
• 化学式: C₂₄H₂₈O₈
• 分子量: 444.482
• InChiKey: CNSCKNOQDWOSIC-CAOOACKPSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.8
• 重原子数：
  32
• 可旋转键数：
  9
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.38
• 拓扑面积：
  81.7
• 氢给体数：
  0
• 氢受体数：
  8

反应信息

• 作为反应物：
  描述：

  (E)-3-(3,4,5-Trimethoxybenzyl)-2-(3,4,5-trimethoxybenzylidene)butanolide 生成 (3R,4S)-3,4-bis[(3,4,5-trimethoxyphenyl)methyl]oxolan-2-one
  参考文献：
  名称：

  LANDAIS, Y.;LEBRUN, A.;LENAIN, V.;ROBIN, J. -P., TETRAHEDRON LETT., 28,(1987) N 43, 5161-5164

  摘要：

  DOI：
• 作为产物：
  描述：

  (+/-)-4-(3,4,5-trimethoxyphenyl)-3-methoxycarbonylbutanoic acid 在 4-二甲氨基吡啶 、 sodium tetrahydroborate 、 potassium tert-butylate 、 sodium hydride 、 三乙胺 、 calcium chloride 、 lithium diisopropyl amide 作用下， 以 四氢呋喃 为溶剂， 反应 30.33h， 生成 (E)-3-(3,4,5-Trimethoxybenzyl)-2-(3,4,5-trimethoxybenzylidene)butanolide
  参考文献：
  名称：

  使用 NaBH4–NiCl2 通过非对映选择性还原 α-亚苄基-β-苄基-γ-丁内酯简单合成反式-α,β-二苄基-γ-丁内酯木脂素

  摘要：

  反式-α,β-二苄基-γ-丁内酯木脂素是通过使用NaBH4-NiCl2立体选择性还原α-苄叉-β-苄基-γ-丁内酯合成的。发现还原是通过氢化物与 α-亚苄基-β-苄基-γ-丁内酯的共轭加成和所得金属烯醇化物的立体选择性质子化来进行的。立体选择性是由 1,3-烯丙基应变诱导的 α-苄基的苯基部分的构象刚性带来的。

  DOI：

  10.1246/bcsj.69.2281

文献信息

• Polycyclic compounds, their preparation and their use as phosphodiesterases inhibitors
  申请人：TSUMURA & CO.

  公开号：EP0594890A1

  公开（公告）日：1994-05-04

  Polycyclic compounds (I) can be prepared in accordance with the following reaction formula: wherein R₁-R₈ each represents a hydrogen atom, a hydroxyl group, an alkoxyl group or a substituted or unsubstituted benzyloxy group or neighboring two groups of R₁-R₈ are coupled together to form an alkylenedioxy group; and A is an alkylene group which may be substituted by one or more alkoxycarbonyl groups, an alkenylene group which may be substituted by one or more alkoxycarbonyl groups, or a group represented by any one of the following formulas:

  多环化合物（I）可以按照以下反应式制备：其中R₁-R₈分别表示氢原子、羟基、烷氧基或取代或未取代的苄氧基，或相邻的R₁-R₈之间结合形成烷二氧基基团；A是一种烷基基团，可以被一个或多个烷氧羰基基团取代，也可以被一个或多个烷氧羰基基团取代的烯基基团，或者由以下任一公式表示的基团：
• Ruthenium dioxide in fluoro acid medium: I. A new agent in the biaryl oxidative coupling. Application to the synthesis of non phenolic bisbenzocyclooctadiene lignan lactones.
  作者：Y Landais、J.-P Robin、A Lebrun

  DOI：10.1016/s0040-4020(01)80904-2

  日期：——

  very efficient agent for the oxidative coupling of non phenolic lignans and their derivatives, and this method was applied to the total synthesis of (+/-)-neoisostegane 2a and (+/-)-steganolide A 2b. This procedure was also used to obtain the first stereospecific synthesis of a cis-bisbenzocyclooctadiene lactone, the (+/-)-deoxyschizandrin 17, of which, was afforded by a short reduction sequence.

  氟酸介质中的二水合钌（IV）被发现是非酚类木脂素及其衍生物氧化偶联的非常有效的试剂，该方法被用于（+/-）-neosoostegane 2a和（ +/-）-硬脂酸内酯A 2b。该方法还用于获得顺式-双苯并环辛二烯内酯的第一个立体有择合成，其（+/-）-脱氧五味子甲酸酯17是通过短还原序列提供的。
• The Migration of Double Bond under the Neutral Conditions. The Transformation of α-Alkylidene Cyclic Carbonyl Compounds to α,β-Unsaturated Cyclic Carbonyl Compounds
  作者：Masahide Tanaka、Hiroshi Mitsuhashi、Masao Maruno、Takeshi Wakamatsu

  DOI：10.1246/cl.1994.1455

  日期：1994.8

  transformation of α-alkylidene cyclic carbonyl compounds to α,β-unsaturated cyclic carbonyl compounds was achieved. In the presence of catalytic amount of triethylsilane, tris(triphenylphosphine)rhodium chloride was found to affect the migration of double bonds. Because of the neutral nature of reaction medium, the reaction proceeded in a clean manner without side reactions.

  实现了α-亚烷基环状羰基化合物向α,β-不饱和环状羰基化合物的转化。在催化量的三乙基硅烷存在下，发现三（三苯基膦）氯化铑会影响双键的迁移。由于反应介质的中性性质，反应以干净的方式进行，没有副反应。
• Process for the preparation of polycyclic compounds
  申请人：TSUMURA & CO.

  公开号：EP0511666A1

  公开（公告）日：1992-11-04

  Polycyclic compounds (I) can be prepared in accordance with the following reaction formula: wherein R₁-R₈ each represents a hydrogen atom, a hydroxyl group, an alkoxyl group or a substituted or unsubstituted benzyloxy group or neighboring two groups of R₁-R₈ are coupled together to form an alkylenedioxy group; and A is an alkylene group which may be substituted by one or more alkoxycarbonyl groups, an alkenylene group which may be substituted by one or more alkoxycarbonyl groups, or a group represented by any one of the following formulas:

  多环化合物 (I) 可根据以下反应式制备： 其中 R₁-R₈各自代表一个氢原子、一个羟基、一个烷氧基或一个取代或未取代的苄氧基，或 R₁-R₈ 的相邻两个基团连接在一起形成一个烷二氧基；A 是可被一个或多个烷氧羰基取代的亚烷基、可被一个或多个烷氧羰基取代的烯基、或由以下任何一个式子表示的基团：
• Synthesis of Optically Pure Gomisi Lignans: The Total Synthesis of (+)-Schizandrin, (+)-Gomisin A, and (+)-Isoschizandrin in Naturally Occurring Forms
  作者：Masahide Tanaka、Chieko Mukaiyama、Hiroshi Mitsuhashi、Masao Maruno、Takeshi Wakamatsu

  DOI：10.1021/jo00119a010

  日期：1995.7

  The total syntheses of (+)-schizandrin (1), (+)-gomisin A (2), and (+)-isoschizandrin (3) having natural configurations were accomplished. Optically pure butyrolactones ((-)-9, (-)-31) were transformed to alpha-benzylidenebutyrolactones ((+)-10, (+)-32, (+)-35). By a highly efficient iron(III) perchlorate-mediated oxidative coupling reaction of 10, 32, and 35, the key intermediates with biphenyl skeletons ((-)-11, (-)-33) were constructed with high stereoselectivity. Several methods for the stereoselective introduction of the C6-hydroxyl group were examined. For the synthesis of schizandrin and gomisin A, the Mukaiyama hydration reaction of(-)-11 and (-)-33 provided the desired products with satisfactory selectivity. For the synthesis of isoschizandrin, the stereoselective epoxidation of allylic alcohol (+)-48 was successfully utilized taking advantage of its conformational features.