4-(4-Methoxy-phenyl)-3-methyl-4-oxo-butyric acid methyl ester | 91541-28-5

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: 4-(4-Methoxy-phenyl)-3-methyl-4-oxo-butyric acid methyl ester
• 英文别名: Methyl 4-methoxy-gamma-oxo-beta-methylbenzenebutanoate；methyl 4-(4-methoxyphenyl)-3-methyl-4-oxobutanoate
• CAS: 91541-28-5
• 化学式: C₁₃H₁₆O₄
• 分子量: 236.268
• InChiKey: GYQYFDCZPHPZLT-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.9
• 重原子数：
  17
• 可旋转键数：
  6
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.38
• 拓扑面积：
  52.6
• 氢给体数：
  0
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  4-(4-Methoxy-phenyl)-3-methyl-4-oxo-butyric acid methyl ester 在 sodium tetrahydroborate 、 水 、 三氟乙酸 、 sodium hydroxide 作用下， 以 甲醇 、 二氯甲烷 为溶剂， 反应 9.0h， 生成 4-methyl-5-(4-methoxyphenyl)dihydrofuran-2(3H)-one
  参考文献：
  名称：

  内酯与醌的催化氧化还原链开环合成含醌的羧酸

  摘要：

  五至八元内酯与醌的催化开环是通过氧化还原链机理实现的。在简单的三氟甲磺酸金属路易斯酸催化剂和链引发剂的低负载下，许多醌的C–H键被含羧酸的侧链有效地官能化。该方法还具有100％的原子经济性和广泛的底物范围。开发了一种抗哮喘药Seratrodast的新途径。机理研究表明，氧化还原链反应可能发生碳正离子中间体。

  DOI：

  10.1021/acs.orglett.9b01672
• 作为产物：
  描述：

  巴豆酸甲酯 、 (4-methoxyphenyl)(phenylseleno)methanone 在 偶氮二异丁腈 、 三正丁基氢锡 作用下， 以 苯 为溶剂， 反应 0.5h， 以76%的产率得到4-(4-Methoxy-phenyl)-3-methyl-4-oxo-butyric acid methyl ester
  参考文献：
  名称：

  Acyl radicals: intermolecular and intramolecular alkene addition reactions

  摘要：

  A full study of the use of phenyl selenoesters as precursors to acyl radicals and their subsequent participation in intermolecular and intramolecular alkene addition reactions is detailed. Primary alkyl-, vinyl-, and aryl-substituted acyl radicals generated by Bu3SnH treatment of the corresponding phenyl selenoesters participate cleanly in intermolecular addition reactions with alkenes bearing electron-withdrawing or radical-stabilizing substituents at rates that exceed those of the potentially competitive decarbonylation or reduction. Similarly, their intramolecular addition to activated or unactivated alkenes proceeds without significant competitive reduction or decarbonylation and at rates generally greater-than-or-equal-to 1 x 10(6) s-1 with some occurring at rates greater-than-or-equal-to 3 x 10(7) s-1. Consistent with their behavior in intermolecular addition reactions, the 5-exo-trig cyclizations of secondary and tertiary alkyl-substituted acyl radicals to an unactivated olefin acceptor may be accompanied by varying degrees of decarbonylation, even under low-temperature free-radical reaction conditions. Studies are presented which suggest that the intramolecular additions of acyl radicals to alkenes under the conditions detailed herein may be regarded as irreversible, kinetically controlled processes which exhibit regioselectivity that is predictable based on well-established empirical rules set forth for the analogous free-radical cyclization reactions of alkyl radicals.

  DOI：

  10.1021/jo00031a021

文献信息

• Leukotriene antagonists
  申请人：Merck Frosst Canada, Inc.

  公开号：US05135940A1

  公开（公告）日：1992-08-04

  Compounds of the Formulae: ##STR1## are antagonists of leukotrienes of C.sub.4, D.sub.4 and E.sub.4, the slow reacting substance of anaphylaxis. These compounds are useful as anti-asthmatic, anti-allergic, anti-inflammatory, and cytoprotective agents.

  公式为：##STR1## 的化合物是C.sub.4，D.sub.4和E.sub.4白三烯的拮抗剂，也是过敏反应缓慢反应物的拮抗剂。这些化合物可用作抗哮喘，抗过敏，抗炎和细胞保护剂。
• Use of leukotriene antagonists for producing cytoprotective pharmaceutical compositions and process for producing cytoprotective pharmaceutical compositions
  申请人：Merck & Co., Inc.

  公开号：EP0156233A2

  公开（公告）日：1985-10-02

  Leukotriene antagonists have been found to be useful for inducing cytoprotection via an unspecified mechanism. Specific therapeutic utilities include, erosive gastritis, erosive esophagitis, inflammatory bowel disease, and induced hemorrhagic gastric erosions such as those caused by indomethacin or ethanol. The leukotriene antagonists are used to produce cytoprotective pharmaceutical compositions. In a process for producing cytoprotective pharmaceutical compositions the leukotriene antagonists are incorporated into a corresponding composition in a cytoprotective effective amount.

  已发现白三烯拮抗剂可通过不明机制诱导细胞保护，具体的治疗用途包括侵蚀性胃炎、侵蚀性食管炎、炎症性肠病和诱发出血性胃糜烂，如由吲哚美辛或乙醇引起的胃糜烂。 白三烯拮抗剂可用于生产细胞保护药物组合物。 在生产细胞保护药物组合物的过程中，白三烯拮抗剂以细胞保护有效量加入相应的组合物中。
• Dang, Hai-Shan; Roberts, Brian P., Journal of the Chemical Society. Perkin transactions I, 1998, # 1, p. 67 - 76
  作者：Dang, Hai-Shan、Roberts, Brian P.

  DOI：——

  日期：——
• Phenyl selenoesters as effective precursors of acyl radicals for use in intermolecular alkene addition reactions
  作者：Dale L. Boger、R. J. Mathvink

  DOI：10.1021/jo00269a001

  日期：1989.4
• Stereoselective reduction of .gamma.-oxobenzenebutanoic acids
  作者：R. Frenette、M. Kakushima、r. Zamboni、R. N. Young、T. R. Verhoeven

  DOI：10.1021/jo00378a035

  日期：1987.1