6-methoxy 7-methyl benzo[d][1,3]dioxole-5-carbaldehyde | 187040-23-9

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 苯并间二氧杂环戊烯类
• 英文名称: 6-methoxy 7-methyl benzo[d][1,3]dioxole-5-carbaldehyde
• 英文别名: 6-Methoxy-7-methyl-1,3-benzodioxole-5-carbaldehyde
• CAS: 187040-23-9
• 化学式: C₁₀H₁₀O₄
• 分子量: 194.187
• InChiKey: QEJUJXZMXNCDME-UHFFFAOYSA-N

物化性质

• 熔点：
  74-76 °C
• 沸点：
  306.8±30.0 °C(Predicted)
• 密度：
  1.272±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  1.5
• 重原子数：
  14
• 可旋转键数：
  2
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.3
• 拓扑面积：
  44.8
• 氢给体数：
  0
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  6-methoxy 7-methyl benzo[d][1,3]dioxole-5-carbaldehyde 在 AD-mix-α 作用下， 以 水 、 叔丁醇 、 苯 为溶剂， 反应 36.0h， 生成 ethyl (2R,3S)-dihydroxy-3-(6-methoxy-7-methyl-benzo[d][1,3]dioxol-5-yl) propionate
  参考文献：
  名称：

  Synthetic studies on Ecteinascidin-743: synthesis of building blocks through Sharpless asymmetric dihydroxylation and aza-Michael reactions

  摘要：

  A practical and an efficient synthesis of three building blocks of tetrahydroisoquinoline alkaloid Ecteinascidin-743 was accomplished, starting from readily available piperonal, 2-methyl anisole, and veratraldehyde. A combination of Vilsmeier-Haack reaction and Sharpless asymmetric dihydroxylation was employed for the synthesis of building blocks A and B whereas a Heck reaction in PEG-2000 and aza-Michael reactions were employed for the synthesis of building block C. (c) 2006 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.tet.2006.09.056
• 作为产物：
  描述：

  3,4-Methylendioxy-phenyl-formiat 在 盐酸 、 氢氧化钾 、 正丁基锂 、 potassium carbonate 、 N,N-二异丙基乙胺 、 三氯氧磷 作用下， 以 四氢呋喃 、 甲醇 、 乙醇 、 正己烷 、 二氯甲烷 、 水 、 丙酮 为溶剂， 反应 17.42h， 生成 6-methoxy 7-methyl benzo[d][1,3]dioxole-5-carbaldehyde
  参考文献：
  名称：

  Synthetic studies on Ecteinascidin-743: synthesis of building blocks through Sharpless asymmetric dihydroxylation and aza-Michael reactions

  摘要：

  A practical and an efficient synthesis of three building blocks of tetrahydroisoquinoline alkaloid Ecteinascidin-743 was accomplished, starting from readily available piperonal, 2-methyl anisole, and veratraldehyde. A combination of Vilsmeier-Haack reaction and Sharpless asymmetric dihydroxylation was employed for the synthesis of building blocks A and B whereas a Heck reaction in PEG-2000 and aza-Michael reactions were employed for the synthesis of building block C. (c) 2006 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.tet.2006.09.056

文献信息

• Synthesis of (±)-phthalascidin 622
  作者：R. Razafindrabe Christian、Aubry Sylvain、Bourdon Benjamin、Andriantsiferana Marta、Pellet-Rostaing Stephane、Lemaire Marc

  DOI：10.1007/s11426-010-4075-z

  日期：2010.9

  synthesis of functionalized phenolic α-amino-alcohols (±)-8 and (±)-16 as synthetic precursors of the catechol tetrahydroisoquinoline structure of phthalascidin 650 was disclosed. (±)-8 was prepared in 5 steps from the commercially available sesamol. Starting from 3-methyl catechol 5, 8 steps gave rise to the synthesis of phenolic α-amino-alcohol (±)-16 in 27% overall yield. This synthetic strategy involved

  公开了作为邻苯二酚650的邻苯二酚四氢异喹啉结构的合成前体的官能化酚类α-氨基醇（±）-8和（±）-16的合成。（±） - 8是在5个步骤制备由市售芝麻酚。从3-甲基邻苯二酚5开始，经过8个步骤，以27％的总收率合成了酚类α-氨基醇（±）-16。该合成策略涉及对完全官能化的芳族醛13进行精细加工，并将其转化为酚类α-氨基醇（±）-16通过Knoevenagel缩合反应，同时还原硝基烯酮和酯官能团，以及苄基保护基的氢解。在另外4个步骤后获得了五环（±）-4。在酚类α-氨基醇（±）-16和N-保护的α-氨基醛4之间进行Pictet-Spengler环化反应，可以得到（1,3'）- N-甲基化和N-化的双-四氢异喹啉17 Fmoc已删除。最后一步是Swern氧化，可实现预期的分子内缩合。
• Saito, Naoki; Tashiro, Kyoichi; Maru, Yukie, Journal of the Chemical Society. Perkin transactions I, 1997, # 1, p. 53 - 70
  作者：Saito, Naoki、Tashiro, Kyoichi、Maru, Yukie、Yamaguchi, Kentaro、Kubo, Akinori

  DOI：——

  日期：——
• Synthetic studies towards (±)-phthalascidin 650: synthesis of a fully functionalized N-protected-α-amino-aldehyde
  作者：Sylvain Aubry、Christian R. Razafindrabe、Benjamin Bourdon、Stéphane Pellet-Rostaing、Marc Lemaire

  DOI：10.1016/j.tetlet.2007.10.111

  日期：2007.12

  An efficient synthesis of fully functionalized N-protected alpha-amino-aldehyde (+/-)-13 as synthetic precursor of the tetra-hydroisoquinoline alkaloid phthalascidin 650 is reported. Starting from sesamol 6, 11 steps are required to give rise to the desired N-protected alpha-amino-aldehyde (+/-)-13 in 25% overall yield. This synthetic strategy involves the elaboration of fully functionalized aromatic aldehyde 7 and its transformation into an alpha-amino-alcohol through a Knoevenagel condensation. The phthalimidomethyl derivative (+/-)-11 was then synthesised from 8 by a Bischler-Napieralski reaction, a diastereoselective hydrogenation of the resultant dihydroisoquinoline and transformed into the corresponding N-protected alpha-amino-aldehyde (+/-)-13. (C) 2007 Elsevier Ltd. All rights reserved.