methyl 1-methyl-3,4-dihydronaphthalene-2-carboxylate | 17255-16-2

• 分子结构分类: 有机化合物 - 苯类化合物 - 萘
• 英文名称: methyl 1-methyl-3,4-dihydronaphthalene-2-carboxylate
• 英文别名: 1-Methyl-3,4-dihydro-naphthalin-2-carbonsaeure-methylester；1-methyl-3,4-dihydronaphthalene-2-carboxylic acid methyl ester
• CAS: 17255-16-2
• 化学式: C₁₃H₁₄O₂
• 分子量: 202.253
• InChiKey: ANVOWBWGMDFTAH-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.5
• 重原子数：
  15
• 可旋转键数：
  2
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.31
• 拓扑面积：
  26.3
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为产物：
  描述：

  (3aR,9bR)-1,4,5,9b-Tetrahydro-benzo[e]indazole-3a-carboxylic acid methyl ester 生成 methyl 1-methyl-3,4-dihydronaphthalene-2-carboxylate
  参考文献：
  名称：

  VEBREL J.; CERUTTI E.; CARRIEL R., C. R. ACAD. SCI., 1979, C288, NO 13, 363-366

  摘要：

  DOI：

文献信息

• Cyclization of Arylacetoacetates to Indene and Dihydronaphthalene Derivatives in Strong Acids. Evidence for Involvement of Further Protonation of O,O-Diprotonated β-Ketoester, Leading to Enhancement of Cyclization
  作者：Hiroaki Kurouchi、Hiromichi Sugimoto、Yuko Otani、Tomohiko Ohwada

  DOI：10.1021/ja908749u

  日期：2010.1.20

  The chemical features, such as substrate stability, product distribution, and substrate generality, and the reaction mechanism of Bronsted superacid-catalyzed cyclization reactions of aromatic ring-containing acetoacetates (beta-ketoesters) were examined in detail. While two types of carbonyl cyclization are possible, i.e., keto cyclization and ester cyclization, the former was found to take place exclusively. The reaction constitutes an efficient method to synthesize indene and 3,4-dihydronapthalene derivatives. Acid-base titration monitored with C-13 NMR spectroscopy showed that the acetoacetates are fully O-1,O-3-diprotonated at H-0 = -11. While the five-membered ring cyclization of the arylacetoacetates proceeded slowly at H-0 = -11, a linear increase in the rate of the cyclization was found with increasing acidity in the high acidity region of H-0 = -11.8 to -13.3. Therefore, the O-1,O-3-diprotonated acetoacetates exhibited some cyclizing reactivity, but they are not the reactive intermediates responsible for the acceleration of the cyclization in the high acidity region. The reactive cationic species might be formed by further protonation (or protosolvation) of the O-1,O-3-diprotonated acetoacetates; i.e., they may be tricationic species. Thermochemical data on the acid-catalyzed cyclization of the arylacetoacetates showed that the activation energy is decreased significantly as compared with that of the related acid-catalyzed cyclization reaction of a compound bearing a single functional group, such as a ketone. These findings indicate that intervention of the trication contributes to the activation of the cyclization of arylacetoacetates in strong acid, and the electron-withdrawing nature of the O-protonated ester functionality significantly increases the electrophilicity of the ketone moiety.
• Singh, Gurdeep; Purkayastha, Makhan L.; Ila, Hiriyakkanavar, Journal of the Chemical Society. Perkin transactions I, 1985, p. 1289 - 1294
  作者：Singh, Gurdeep、Purkayastha, Makhan L.、Ila, Hiriyakkanavar、Junjappa, Hiriyakkanavar

  DOI：——

  日期：——
• SINGH, G.;PURKAYASTHA, MAKHAN, L.;ILA, HIRIYAKKANAVAR;JUNJAPPA, HIRIYAKKA+, J. CHEM. SOC. PERKIN TRANS., 1985, N 7, 1289-1294
  作者：SINGH, G.、PURKAYASTHA, MAKHAN, L.、ILA, HIRIYAKKANAVAR、JUNJAPPA, HIRIYAKKA+

  DOI：——

  日期：——
• US4540705A
  申请人：——

  公开号：US4540705A

  公开（公告）日：1985-09-10
• VEBREL J.; CERUTTI E.; CARRIEL R., C. R. ACAD. SCI., 1979, C288, NO 13, 363-366
  作者：VEBREL J.、 CERUTTI E.、 CARRIEL R.

  DOI：——

  日期：——