dimethyl 4-hydroxy-2-methylbenzene-1,3-dicarboxylate | 131236-63-0

• 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: dimethyl 4-hydroxy-2-methylbenzene-1,3-dicarboxylate
• 英文别名: 4-hydroxy-2-methylisophthalic acid dimethyl ester；dimethyl 4-hydroxy-2-methylisophthalate
• CAS: 131236-63-0
• 化学式: C₁₁H₁₂O₅
• 分子量: 224.213
• InChiKey: BQAZBYDKIOFWEV-UHFFFAOYSA-N

物化性质

• 熔点：
  88-90 °C
• 沸点：
  307.3±37.0 °C(Predicted)
• 密度：
  1.246±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  2.2
• 重原子数：
  16
• 可旋转键数：
  4
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.27
• 拓扑面积：
  72.8
• 氢给体数：
  1
• 氢受体数：
  5

反应信息

• 作为产物：
  描述：

  Dimethyl 3-methyl-6-oxocyclohexa-1,4-diene-1,3-dicarboxylate 以 苯 为溶剂， 反应 3.0h， 以87%的产率得到dimethyl 4-hydroxy-2-methylbenzene-1,3-dicarboxylate
  参考文献：
  名称：

  Photochemical and acid-catalyzed dienone-phenol rearrangements. The effect of substituents on the regioselectivity of 1,4-sigmatropic rearrangements of the type A intermediate

  摘要：

  Birch reduction of isophthalic acid and 3-cyanobenzoic acid followed by (1) methylation of the resulting enolate with methyl iodide and (2) esterification with diazomethane provided 2-carbomethoxy- and 2-cyano-6-methyl-6-carbomethoxy-1,4-cyclohexadienes 9 and 25. Type A photorearrangements of a series of 2-carbomethoxy-, 2-cyano-, 2-methoxy-, and 2-methyl-4-carbomethoxy-4-methyl-2,5-cyclohexadien-1-ones 11, 26, 45a, and 45b gave 4-carbomethoxy-3-methyl-2-substituted-phenols 12, 28, 46, and 31. It has been demonstrated that the regioselectivity of type A photorearrangement of C(2) substituted 2,5-cyclohexadien-1-ones is governed by electronic rather than steric effects to give the intermediate C(1) rather than C(3) substituted bicyclo [3.1.0(1,5)]hex-3-en-2-ones. Regioselectivities of the acid-catalyzed dienone-phenol rearrangements of C(2) substituted 2,5-cyclohexadienones 11, 45a, and 45b appear to be dependent upon the relative stabilities of carbocations resulting from migration of the C(4) carbomethoxy group.

  DOI：

  10.1021/jo00003a037

文献信息

• [EN] MACROCYCLIC COMPOUNDS USEFUL AS PHARMACEUTICALS<br/>[FR] COMPOSES MACROCYCLIQUES UTILES COMME PRODUITS PHARMACEUTIQUES
  申请人：EISAI CO LTD

  公开号：WO2003076424A1

  公开（公告）日：2003-09-18

  The present invention provides compounds having formula (I), and additionally provides methods for the synthesis thereof and methods for the use thereof in the treatment of various disorders including inflammatory or autoimmune disorders, and disorders involving malignancy or increased angiogenesis, wherein R1 -R11, t, X, Y, Z, and n are as defined herein.

  本发明提供具有式（I）的化合物，并另外提供其合成方法以及在治疗包括炎症性或自身免疫性疾病、恶性肿瘤或增加血管生成等各种疾病中使用的方法，其中R1-R11、t、X、Y、Z和n如本文所定义。
• Diversity-oriented synthesis of 1-hydroxy-2,4-benzodioates by regioselective [3+3] cyclocondensations of 1,3-bis(silyloxy)-1,3-butadienes with 3-alkoxy- and 3-silyloxy-2-alkoxycarbonyl-2-en-1-ones
  作者：Mohanad Shkoor、Abdolmajid Riahi、Olumide Fatunsin、Ibrar Hussain、Mirza A. Yawer、Mathias Lubbe、Stefanie Reim、Helmut Reinke、Christine Fischer、Peter Langer

  DOI：10.1039/b900542k

  日期：——

  1-Hydroxy-3,5-dimethyl-2,4-benzodioates (4-hydroxyisophthalates) were prepared by [3+3] cyclocondensation of 1,3-bis(silyloxy)-1,3-butadienes with 3-ethoxycarbonyl-4-trimethylsilyloxy-3-penten-2-one which is synthesized from (symmetrical) ethyl 2-acetylacetoacetate. The [3+3] cyclization of 1,3-bis(silyloxy)-1,3-butadienes with 3-alkoxy-2-alkoxycarbonyl-2-en-1-ones, readily available by reaction of β-ketoesters with trialkyl orthoformiates, provide a convenient and regioselective approach to a great variety of 3-substituted 1-hydroxy-2,4-benzodioates that are not readily available by other methods.

  1-羟基-3,5-二甲基-2,4-苯二酸酯（4-羟基异苯甲酸酯）是通过1,3-二（硅氧基）-1,3-丁二烯与3-乙氧基carbonyl-4-三甲基硅氧基-3-戊烯-2-酮的[3+3]环缩合反应制备的，该3-乙氧基carbonyl-4-三甲基硅氧基-3-戊烯-2-酮是从（对称）乙基2-乙酰乙酸乙酯合成的。1,3-二（硅氧基）-1,3-丁二烯与3-烷氧基-2-烷氧基carbonyl-2-烯-1-酮的[3+3]环化反应，后者通过β-酮酯与三烷基甲酸醛的反应容易获得，提供了一种方便且区域选择性的途径，以合成多种不易通过其他方法获得的3-取代1-羟基-2,4-苯二酸酯。
• MACROCYCLIC COMPOUNDS USEFUL AS PHARMACEUTICALS
  申请人：Boivin Roch

  公开号：US20110144101A1

  公开（公告）日：2011-06-16

  The present invention provides methods for the use of compounds having formula (I) in the treatment of various disorders including inflammatory or autoimmune disorders, and disorders involving malignancy or increased angiogenesis, wherein R 1 -R 11 , t, X, Y, Z, and n are as defined herein.

  本发明提供了使用具有公式（I）的化合物治疗各种疾病的方法，包括炎症或自身免疫性疾病，以及涉及恶性肿瘤或增加血管生成的疾病，其中R1-R11，t，X，Y，Z和n如本文所定义。
• Diels−Alder Reaction of 2-Amino-Substituted Furans as a Method for Preparing Substituted Anilines
  作者：Albert Padwa、Martin Dimitroff、Alex G. Waterson、Tianhua Wu

  DOI：10.1021/jo9702599

  日期：1997.6.13

  5-Amino-2-furancarboxylic acid methyl ester undergoes a facile Diels-Alder cycloaddition with a variety of dienophiles to afford ring-opened cycloadducts that are readily dehydrated using BF3 . OEt2 to give polysubstituted anilines. In each case, the cycloaddition proceeds with high regioselectivity, with the electron-withdrawing group being located ortho to the amino group. The most favorable FMO interaction is between the HOMO of the furanamine and the LUMO of the dienophile. The atomic coefficient at the ester carbon of the furan is larger than that at the amino center, and this nicely accommodates the observed regioselectivity. The [4 + 2]-cycloaddition of N-(5-nitrofuranyl)morpholine with methyl vinyl ketone affords a mixture of three phenols. One of the phenols is derived from a Diels-Alder reaction followed by nitro group ejection and subsequent aromatization. The remaining two phenols are the result of cleavage of the initially formed oxabicyclic intermediate with concomitant migration of the nitro group. The mild reaction conditions with which furan-2-carbamic acid tert-butyl ester undergoes Diels-Alder cycloaddition with N-phenylmaleimide allow for the ready isolation of the initial oxybridged cycloadduct.
• SCHULTZ, ARTHUR G.;HARDINGER, STEVEN A., J. ORG. CHEM., 56,(1991) N, C. 1105-1111
  作者：SCHULTZ, ARTHUR G.、HARDINGER, STEVEN A.

  DOI：——

  日期：——