7-butyl-1,3-dimethyl-3,7-dihydro-1H-purine-2,6-dione | 1021-65-4

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 咪唑并嘧啶类
• 英文名称: 7-butyl-1,3-dimethyl-3,7-dihydro-1H-purine-2,6-dione
• 英文别名: 7-butyl-1,3-dimethylxanthine；7-butyl-theophylline；n-butyl theophylline；7-butyl-1,3-dimethyl-3,7-dihydro-purine-2,6-dione；7-Butyl-1,3-dimethyl-3,7-dihydro-purin-2,6-dion；7-Butyltheophyllin；7-Butyltheophylline；7-butyl-1,3-dimethylpurine-2,6-dione
• CAS: 1021-65-4
• 化学式: C₁₁H₁₆N₄O₂
• 分子量: 236.274
• InChiKey: CPRWWXKLQNLTSZ-UHFFFAOYSA-N

物化性质

• 沸点：
  365.66°C (rough estimate)
• 密度：
  1.1721 (rough estimate)
• 溶解度：
  0.02 M

计算性质

• 辛醇/水分配系数(LogP)：
  0.7
• 重原子数：
  17
• 可旋转键数：
  3
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.55
• 拓扑面积：
  58.4
• 氢给体数：
  0
• 氢受体数：
  3

安全信息

• 海关编码：
  2933990090

反应信息

• 作为反应物：
  描述：

  7-butyl-1,3-dimethyl-3,7-dihydro-1H-purine-2,6-dione 以 甲醇 、 二氯甲烷 、 N,N-二甲基甲酰胺 为溶剂， 反应 26.0h， 生成 9-butyl-1,3,5-trimethylxanthine-8-ylidene silver acetate
  参考文献：
  名称：

  Synthesis and anticancer activity of silver(i)–N-heterocyclic carbene complexes derived from the natural xanthine products caffeine, theophylline and theobromine

  摘要：

  从天然黄嘌呤产品中提取的银-N-杂环卡宾络合物已经制备完成。化学敏感性研究表明，细胞毒性、配体立体效应和亲水性之间存在相关性。

  DOI：

  10.1039/c4dt03679d
• 作为产物：
  描述：

  茶碱 在 1,8-二氮杂双环[5.4.0]十一碳-7-烯 、 三乙胺 作用下， 以 乙腈 为溶剂， 反应 3.0h， 生成 7-butyl-1,3-dimethyl-3,7-dihydro-1H-purine-2,6-dione
  参考文献：
  名称：

  N 7-Tosyltheophylline (TsTh): A Highly Efficient Reagent for the One-Pot Synthesis of N 7-Alkyltheophyllines from Alcohols

  摘要：

  A convenient and highly efficient one-pot N-alkylation of theophylline from alcohols via N-7-tosyltheophylline (TsTh) is described. In this protocol, the treatment of primary and/or secondary alcohols with a mixture of TsTh and 1,8-diazabicyclo[5.4.0]undec-7-ene in refluxing acetonitrile affords the corresponding N-7-alkyltheophylline in good to excellent yields; the reaction was optimized for solvent and base. This methodology is highly efficient for various structurally diverse primary and secondary alcohols. A plausible mechanism for the one-pot N-alkylation of theophylline with alcohols via TsTh has been suggested.

  DOI：

  10.1055/s-0033-1341026

文献信息

• Discovery of a Full-Color-Tunable Fluorescent Core Framework through Direct CH (Hetero)arylation of N-Heterocycles
  作者：Bo Liu、Zhi Wang、Ningjie Wu、Mingliang Li、Jingsong You、Jingbo Lan

  DOI：10.1002/chem.201103329

  日期：2012.2.6

  coverage of emission wavelengths in the visible region (405–616 nm) with large Stokes shifts in C3‐Indo‐Fluor may be straightforwardly and succinctly achieved by the palladium‐catalyzed direct CH arylation of indolizines at the C3 position of the pyrrole ring (see figure). The fluorophores have successfully marked A375 cells.

  彩虹的所有颜色！在C3–Indo–Fluor中，斯托克斯频移较大的可见光区域（405–616 nm）的发射波长可以完全覆盖，这可以通过钯催化的吲哚在C3位置的直接CH芳基化而直接实现。吡咯环（见图）。荧光团已成功标记A375细胞。
• Copper-catalyzed direct thiolation of xanthines and related heterocycles with disulfides
  作者：Zuying He、Fang Luo、Yinglong Li、Gangguo Zhu

  DOI：10.1016/j.tetlet.2013.08.097

  日期：2013.10

  A novel copper-catalyzed, base-free direct thiolation of xanthines and related heterocycles is described, featuring the use of inexpensive Cu(OAc)2·H2O as the catalyst, O2 as a clean and cheap oxidant, and easy-to-handle disulfides as the thiolation reagents. It works well for both aryl and alkyl disulfides. Moreover, the resultant products can be converted into 8-(hetero)aryl- or alkenyl-substituted

  描述了一种新颖的铜催化的黄嘌呤和相关杂环的无碱直接硫醇化反应，其特征在于使用廉价的Cu（OAc）2 ·H 2 O作为催化剂，O 2作为清洁廉价的氧化剂，并且易于使用-处理二硫化物作为硫醇化试剂。它对于芳基和烷基二硫化物均适用。此外，通过利伯斯金德-索罗尔偶联反应，可以高收率将所得产物转化为8-（杂）芳基或烯基取代的黄嘌呤。
• Phosphine-Free, Palladium-Catalyzed Arylation of Heterocycles through CH Bond Activation with Pivalic Acid as a Cocatalyst
  作者：Dongbing Zhao、Weida Wang、Shuang Lian、Fei Yang、Jingbo Lan、Jingsong You

  DOI：10.1002/chem.200802001

  日期：2009.1.26

  Ligand‐free C‐arylation: A general palladium‐catalyzed C‐arylation of N‐heterocycles with aryl bromides has been performed without the presence of phosphines, the aid of CuI, or other metal additives by using pivalic acid as a cocatalyst (see scheme).

  无配体的C芳基化：通过使用新戊酸作为助催化剂，在不存在膦的情况下，借助CuI或其他金属添加剂的情况下，进行了N杂环与芳基溴化物的一般钯催化C芳基化反应。 ）。
• One-pot synthesis of benzofused heteroaryl azoles <i>via</i> tandem C-heteroatom coupling/C–H activation of azoles
  作者：Xurong Qin、Xuefeng Cong、Dongbing Zhao、Jingsong You、Jingbo Lan

  DOI：10.1039/c1cc10572h

  日期：——

  The Cu(I) or Pd(II)-catalyzed cross-couplings of gem-dihaloolefins with azoles via tandem C-heteroatom coupling/C-H activation for the preparation of benzofused heteroaryl azoles have been developed.

  已经开发了通过串联C-杂原子偶联/ CH活化的Cu（I）或Pd（II）催化的宝石二卤代烯烃与唑的交叉偶联，用于制备苯并稠合的杂芳基唑。
• A Palladium/Copper Bimetallic Catalytic System: Dramatic Improvement for Suzuki–Miyaura‐Type Direct CH Arylation of Azoles with Arylboronic Acids
  作者：Bo Liu、Xurong Qin、Kaizhi Li、Xiyu Li、Qiang Guo、Jingbo Lan、Jingsong You

  DOI：10.1002/chem.201001338

  日期：2010.10.18

  Bimetallic catalytic system: Palladium/copper bimetallic‐catalyzed Suzuki–Miyaura‐type coupling has been disclosed for direct CH arylation of azoles, instead of azole halides or pseudohalides, with arylboronic acids (see scheme).

  双金属催化体系：已经公开了钯/铜双金属催化的Suzuki-Miyaura型偶合，可将芳基硼酸直接用于吡咯类的CH芳基化反应，而不是吡咯卤化物或假卤化物（参见方案）。