3-(3,4,5-trimethoxyphenyl)-2,3-dihydrobenzo[d]isothiazole-1,1-dioxide | 1009806-71-6

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 苯并噻唑类
• 英文名称: 3-(3,4,5-trimethoxyphenyl)-2,3-dihydrobenzo[d]isothiazole-1,1-dioxide
• 英文别名: 3-(3,4,5-trimethoxyphenyl)-2,3-dihydro-1,2-benzisothiazole 1,1-dioxide；3-(3,4,5-Trimethoxyphenyl)-2,3-dihydro-1,2-benzothiazole 1,1-dioxide
• CAS: 1009806-71-6
• 化学式: C₁₆H₁₇NO₅S
• 分子量: 335.381
• InChiKey: NZESPSUMKLWFSM-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.1
• 重原子数：
  23
• 可旋转键数：
  4
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.25
• 拓扑面积：
  82.2
• 氢给体数：
  1
• 氢受体数：
  6

反应信息

• 作为产物：
  描述：

  N-t-butyl-2-[1-(3,4,5-trimethoxyphenyl)-1-hydroxymethyl]benzenesulfonamide 在 三甲基氯硅烷 、 碘 、 sodium iodide 作用下， 以 乙腈 为溶剂， 以75%的产率得到3-(3,4,5-trimethoxyphenyl)-2,3-dihydrobenzo[d]isothiazole-1,1-dioxide
  参考文献：
  名称：

  Iodotrimethylsilane and Catalytic Iodine Promoted Cyclization for the Facile Synthesis of 3-Monoarylated Five-Membered Benzosultams

  摘要：

  3-Monoarylated five-membered benzosultams with various functional groups were prepared by simple and convenient two-step procedures. N-t-Bu-benzenesulfonamides were lithiated and reacted with substituted aromatic aldehydes to form the corresponding carbinols, which were converted to the cyclic compounds via a sequence of consecutive processes mediated by TMSCl-NaI-MeCN reagent and catalytic amount of iodine. Iodine played a crucial role in the eliminating the reductive side reaction in the cyclization processes.

  DOI：

  10.3987/com-09-11884

文献信息

• Cobalt‐Catalyzed Transfer Hydrogenation of α‐Ketoesters and <i>N</i> ‐Cyclicsulfonylimides Using H ₂ O as Hydrogen Source
  作者：Yang Gao、Xuexin Zhang、Ronibala Devi Laishram、Jingchao Chen、Kangkui Li、Keyang Zhang、Guangzhi Zeng、Baomin Fan

  DOI：10.1002/adsc.201900636

  日期：2019.9.3

  A Co‐catalyzed effective transfer hydrogenation of various α‐ketoesters and N‐cyclicsulfonylimides by safe and environmentally benign H2O as hydrogen source is described. The reaction used easily available and easy to handle zinc metal as a reductant. Interestingly, the catalytic system does not require ligand for reduction of N‐cyclicsulfonylimides.

  描述了一种以安全和环境友好的H 2 O作为氢源对各种α-酮酸酯和N-环磺酰亚胺的共催化有效转移加氢方法。该反应使用容易获得并且易于处理锌金属作为还原剂。有趣的是，催化体系不需要用于还原N-环磺酰亚胺的配体。