[3-(1,3-Dithian-2-yl)-2-methylcyclohex-2-en-1-yl] formate | 194937-79-6

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 二噻烷
• 英文名称: [3-(1,3-Dithian-2-yl)-2-methylcyclohex-2-en-1-yl] formate
• CAS: 194937-79-6
• 化学式: C₁₂H₁₈O₂S₂
• 分子量: 258.406
• InChiKey: IZTSWLWEAZXBTL-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.4
• 重原子数：
  16
• 可旋转键数：
  3
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.75
• 拓扑面积：
  76.9
• 氢给体数：
  0
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  [3-(1,3-Dithian-2-yl)-2-methylcyclohex-2-en-1-yl] formate 在 N-氯代丁二酰亚胺 、 silver nitrate 作用下， 以 水 、 乙腈 为溶剂， 反应 0.5h， 以59%的产率得到3-Formyloxy-2-methyl-1-cyclohexen-1-carboxaldehyde
  参考文献：
  名称：

  A One-Pot Condensation of Pyrones and Enals. Synthesis of 1H,7H-5a,6,8,9-Tetrahydro-1-oxopyrano[4,3-b][1]benzopyrans

  摘要：

  Condensation of various 6-substituted 4-hydroxypyrones 1 with 1-cyclohexenecarboxaldehydes in the presence of L-proline in ethyl acetate gave high yields of substituted 1H,7H-5a,6,8,9-tetrahydro-1-oxopyrano[4,3-b][1]benzopyrans. The reaction presumably occurs via the 1,2-addition of the pyrone with the aldehyde followed by dehydration and then cyclization through a 6 Pi electrocyclic process. A remarkable asymmetric induction was obtained from a stereogenic center (C4) of the cyclohexenecarboxaldehyde [such as (S)-perillaldehyde] to provide only the C5a,7-trans tricyclic pyrone products. On the other hand, condensation of S-(formyloxy)- or 3-hydroxy-2-methyl-1-cyclohexene-carboxaldehydes with pyrones 1 gave mixtures of C5a,6-cis and -trans products. Several of the tricyclic pyrones strongly inhibit acetylcholinesterase activity, DNA synthesis, and tumor cell growth in vitro.

  DOI：

  10.1021/jo970642d
• 作为产物：
  描述：

  2-bromo-2-methylcyclohexanone 在 正丁基锂 、 lithium carbonate 、 对甲苯磺酸 、 lithium bromide 作用下， 以 四氢呋喃 、 正己烷 、 N,N-二甲基甲酰胺 为溶剂， 反应 40.0h， 生成 [3-(1,3-Dithian-2-yl)-2-methylcyclohex-2-en-1-yl] formate
  参考文献：
  名称：

  A One-Pot Condensation of Pyrones and Enals. Synthesis of 1H,7H-5a,6,8,9-Tetrahydro-1-oxopyrano[4,3-b][1]benzopyrans

  摘要：

  Condensation of various 6-substituted 4-hydroxypyrones 1 with 1-cyclohexenecarboxaldehydes in the presence of L-proline in ethyl acetate gave high yields of substituted 1H,7H-5a,6,8,9-tetrahydro-1-oxopyrano[4,3-b][1]benzopyrans. The reaction presumably occurs via the 1,2-addition of the pyrone with the aldehyde followed by dehydration and then cyclization through a 6 Pi electrocyclic process. A remarkable asymmetric induction was obtained from a stereogenic center (C4) of the cyclohexenecarboxaldehyde [such as (S)-perillaldehyde] to provide only the C5a,7-trans tricyclic pyrone products. On the other hand, condensation of S-(formyloxy)- or 3-hydroxy-2-methyl-1-cyclohexene-carboxaldehydes with pyrones 1 gave mixtures of C5a,6-cis and -trans products. Several of the tricyclic pyrones strongly inhibit acetylcholinesterase activity, DNA synthesis, and tumor cell growth in vitro.

  DOI：

  10.1021/jo970642d

文献信息

• US6384045B1
  申请人：——

  公开号：US6384045B1

  公开（公告）日：2002-05-07
• A One-Pot Condensation of Pyrones and Enals. Synthesis of 1<i>H</i>,7<i>H</i>-5a,6,8,9-Tetrahydro-1-oxopyrano[4,3-<i>b</i>][1]benzopyrans
  作者：Duy H. Hua、Yi Chen、Hong-Sig Sin、Maria J. Maroto、Paul D. Robinson、Steven W. Newell、Elisabeth M. Perchellet、James B. Ladesich、Jonathan A. Freeman、Jean-Pierre Perchellet、Peter K. Chiang

  DOI：10.1021/jo970642d

  日期：1997.10.1

  Condensation of various 6-substituted 4-hydroxypyrones 1 with 1-cyclohexenecarboxaldehydes in the presence of L-proline in ethyl acetate gave high yields of substituted 1H,7H-5a,6,8,9-tetrahydro-1-oxopyrano[4,3-b][1]benzopyrans. The reaction presumably occurs via the 1,2-addition of the pyrone with the aldehyde followed by dehydration and then cyclization through a 6 Pi electrocyclic process. A remarkable asymmetric induction was obtained from a stereogenic center (C4) of the cyclohexenecarboxaldehyde [such as (S)-perillaldehyde] to provide only the C5a,7-trans tricyclic pyrone products. On the other hand, condensation of S-(formyloxy)- or 3-hydroxy-2-methyl-1-cyclohexene-carboxaldehydes with pyrones 1 gave mixtures of C5a,6-cis and -trans products. Several of the tricyclic pyrones strongly inhibit acetylcholinesterase activity, DNA synthesis, and tumor cell growth in vitro.