N-tert-butyl-N'-(2-methylphenyl)urea | 134627-32-0

• 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: N-tert-butyl-N'-(2-methylphenyl)urea
• 英文别名: 1-tert-butyl-3-o-tolylurea；1-Tert-butyl-3-(2-methylphenyl)urea
• CAS: 134627-32-0
• 化学式: C₁₂H₁₈N₂O
• mdl: MFCD00996110
• 分子量: 206.288
• InChiKey: ZGYVGZHSMYBSDV-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.7
• 重原子数：
  15
• 可旋转键数：
  2
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.416
• 拓扑面积：
  41.1
• 氢给体数：
  2
• 氢受体数：
  1

反应信息

• 作为产物：
  描述：

  异氰酸叔丁酯 、 邻甲苯胺 在 叔丁基过氧化氢 、 四丁基溴化铵 、 特戊酸钠 、 cobalt acetylacetonate 作用下， 以 水 、 乙腈 为溶剂， 反应 1.0h， 以64%的产率得到N-tert-butyl-N'-(2-methylphenyl)urea
  参考文献：
  名称：

  超声波条件下胺催化钴（II）与胺的异氰酸酯插入反应：尿素，硫脲和氮杂环化合物的不同合成

  摘要：

  AbstractCobalt(II) acetylacetonate‐catalyzed isocyanide insertion reactions with amines utilizing tert‐butyl hydroperoxide (TBHP) as an oxidant under ultrasound conditions have been developed, which lead to the synthesis of ureas, thioureas, as well as 2‐aminobenzimidazoles, 2‐aminobenzothiazoles, and 2‐aminobenzoxazoles under the general reaction conditions in up to 96% yields, respectively. The intermediate amino methylidyneaminiums, initiated by cobalt(II) acetylacetonate‐catalyzed reactions of isocyanides with amines, could be easily trapped by different nucleophiles such as water, sulfur, and intramolecular nucleophilic functional groups. This method provides a simple, general and practical protocol for the divergent synthesis of ureas, thioureas and azaheterocycles.magnified image

  DOI：

  10.1002/adsc.201300745

文献信息

• QUINOLINE, NAPHTHALENE AND CONFORMATIONALLY CONSTRAINED QUINOLINE OR NAPHTHALENE DERIVATIVES AS ANTI-MYCOBACTERIAL AGENTS
  申请人：Chattopadhyaya Jyoti

  公开号：US20110059948A1

  公开（公告）日：2011-03-10

  The invention relates to a compound of general formula I, II, III, IV, V, VI, VII, VIII, IX, X or a tautomer and the stereochemically isomeric forms thereof or pharmaceutically acceptable salts thereof, a N-oxide form thereof or a pro-drug thereof. The compound is usable as a medicament for the treatment of mycobacterial disease.

  本发明涉及一种符合以下公式I、II、III、IV、V、VI、VII、VIII、IX、X或其互变异构体，或其药学上可接受的盐、N-氧化物形式或前药的化合物。该化合物可用作治疗分枝杆菌病的药物。
• <scp>Metallaphotoredox‐Catalyzed Three‐Component</scp> Couplings for Practical Synthesis of Ureas and Carbamates^†
  作者：Ernest Koranteng、Zhen‐Cao Shu、Yi‐Yin Liu、Qian Yang、Bin Shi、Qiang‐Xian Wu、Fen Tan、Liang‐Qiu Lu、Wen‐Jing Xiao

  DOI：10.1002/cjoc.202300500

  日期：2024.2

  sodium cyanate and amines enabled by nickel/photoredox dual catalysis for the preparation of unsymmetrical ureas. The reaction features simple and safe operations, broad substrate scopes, and product diversities. It allows the facile synthesis of N-aryl/vinyl ureas from readily available, user-friendly feedstocks under mild conditions (27 examples, 36%—98% yields). In addition, this method is further derived

  脲由于具有二酰胺结构，可形成强氢键，广泛应用于药物、材料和催化剂。因此，开发高效、绿色的尿素化合物特别是不对称尿素的合成方法具有重要的科学意义。在这里，我们公开了通过镍/光氧化还原双重催化实现有机卤化物、氰酸钠和胺的新型高效三组分偶联反应，用于制备不对称脲。该反应具有操作简单安全、底物范围广、产物多样性等特点。它允许在温和条件下从容易获得、用户友好的原料中轻松合成N-芳基/乙烯基脲（27 个示例，产率 36%—98%）。此外，该方法进一步衍生以醇为亲核试剂，合成一系列氨基甲酸酯（实例15个，收率40%—95%）。机理实验表明，卤化物与氰酸钠偶联生成的异氰酸酯可能是该反应的关键中间体。
• Carbon dioxide: a reagent for the simultaneous protection of nucleophilic centers and the activation of alternative locations to electrophilic attack. 17. Substitution of N-methyl-1- and N-methyl-2-naphthylamine and side-chain functionalization of o-toluidine
  作者：Alan R. Katritzky、Michael Black、Wei Qiang Fan

  DOI：10.1021/jo00017a012

  日期：1991.8

  N-Methyl-1-naphthylamine is readily converted into a range of 2-substituted derivatives in one-pot sequences, using carbon dioxide for NH protection. Similarly, N-methyl-2-naphthylamine yields 3-substituted derivatives in the first direct preparation of 2,3-disubstituted naphthalenes. The intermediate lithium carbamates are further lithiated by tert-butyllithium at the 2-position for N-methyl-1-naphthylamine and at the 3-position for N-methyl-2-naphthylamine and then reacted with an electrophile; the products undergo acid-catalyzed decarboxylation during workup. omicron-Toluidine is converted into its methyl-functionalized derivatives in a similar way, except that 2 equiv of tert-butyllithium are used for the further lithiation of the intermediate lithium carbamate.
• US9216979B2
  申请人：——

  公开号：US9216979B2

  公开（公告）日：2015-12-22