2-(3,4-dimethoxybenzyl)benzofuran | 1423608-34-7

• 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: 2-(3,4-dimethoxybenzyl)benzofuran
• 英文别名: 2-[(3,4-Dimethoxyphenyl)methyl]-1-benzofuran；2-[(3,4-dimethoxyphenyl)methyl]-1-benzofuran
• CAS: 1423608-34-7
• 化学式: C₁₇H₁₆O₃
• 分子量: 268.312
• InChiKey: XAUPNRGFQYTHDJ-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  4.2
• 重原子数：
  20
• 可旋转键数：
  4
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.18
• 拓扑面积：
  31.6
• 氢给体数：
  0
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  2-(3,4-dimethoxybenzyl)benzofuran 在 叠氮基三甲基硅烷 、 溶剂黄146 、 2,3-二氯-5,6-二氰基-1,4-苯醌 、 iron(II) chloride 作用下， 以 水 为溶剂， 反应 12.0h， 以71%的产率得到N-(3,4-dimethoxyphenyl)benzofuran-2-carboxamide
  参考文献：
  名称：

  Pd-Catalyzed Isocyanide Assisted Reductive Cyclization of 1-(2-Hydroxyphenyl)-propargyl Alcohols for 2-Alkyl/Benzyl Benzofurans and Their Useful Oxidative Derivatization

  摘要：

  An unusual Pd-catalyzed isocyanide assisted 5exo-dig reductive cyclization of 1-(2-hydroxyphenyl)-propargyl alcohols is achieved for 2-alkyl/benzyl benzofurans. The reaction features a high substrate scope, insensitivity to air, and excellent product yielding. Further, a direct metal-free C-H functionalization (azidation, alkoxylation, and hydroxylation) and selective oxidative cleavage of thus synthesized 2-benzylfurans are described for azido-, alkoxy-, hydroxyl-, amide-, and tetrazolyl adducts.

  DOI：

  10.1021/acs.joc.5b02204
• 作为产物：
  描述：

  2-(3-(3,4-dimethoxyphenyl)-1-hydroxyprop-2-yn-1-yl)phenol 在 异氰酸叔丁酯 、 palladium diacetate 、 caesium carbonate 作用下， 以 乙腈 为溶剂， 反应 6.0h， 以92%的产率得到2-(3,4-dimethoxybenzyl)benzofuran
  参考文献：
  名称：

  Pd-Catalyzed Isocyanide Assisted Reductive Cyclization of 1-(2-Hydroxyphenyl)-propargyl Alcohols for 2-Alkyl/Benzyl Benzofurans and Their Useful Oxidative Derivatization

  摘要：

  An unusual Pd-catalyzed isocyanide assisted 5exo-dig reductive cyclization of 1-(2-hydroxyphenyl)-propargyl alcohols is achieved for 2-alkyl/benzyl benzofurans. The reaction features a high substrate scope, insensitivity to air, and excellent product yielding. Further, a direct metal-free C-H functionalization (azidation, alkoxylation, and hydroxylation) and selective oxidative cleavage of thus synthesized 2-benzylfurans are described for azido-, alkoxy-, hydroxyl-, amide-, and tetrazolyl adducts.

  DOI：

  10.1021/acs.joc.5b02204

文献信息

• Benzofuran and indole synthesis via Cu(<scp>i</scp>)-catalyzed coupling of N-tosylhydrazone and o-hydroxy or o-amino phenylacetylene
  作者：Tiebo Xiao、Xichang Dong、Lei Zhou

  DOI：10.1039/c2ob26867a

  日期：——

  A general and practical method to synthesize 2-substituted benzofurans and indoles is described. This method employs easily accessible N-tosylhydrazones and o-hydroxy or o-amino phenylacetylenes as substrates. The reaction proceeds through a CuBr-catalyzed coupling–allenylation–cyclization sequence under ligand-free conditions.

  描述了合成2-取代的苯并呋喃和吲哚的一般和实用的方法。该方法采用容易获得的N-甲苯磺酰hydr和邻羟基或邻氨基苯基乙炔作为底物。反应在无配体条件下通过CuBr催化的偶联-烯基化-环化序列进行。
• Pd-Catalyzed Isocyanide Assisted Reductive Cyclization of 1-(2-Hydroxyphenyl)-propargyl Alcohols for 2-Alkyl/Benzyl Benzofurans and Their Useful Oxidative Derivatization
  作者：Manda Rajesh、Nuligonda Thirupathi、Thota Jagadeshwar Reddy、Sanjeev Kanojiya、Maddi Sridhar Reddy

  DOI：10.1021/acs.joc.5b02204

  日期：2015.12.18

  An unusual Pd-catalyzed isocyanide assisted 5exo-dig reductive cyclization of 1-(2-hydroxyphenyl)-propargyl alcohols is achieved for 2-alkyl/benzyl benzofurans. The reaction features a high substrate scope, insensitivity to air, and excellent product yielding. Further, a direct metal-free C-H functionalization (azidation, alkoxylation, and hydroxylation) and selective oxidative cleavage of thus synthesized 2-benzylfurans are described for azido-, alkoxy-, hydroxyl-, amide-, and tetrazolyl adducts.