1,3-二(2-甲氧基乙基)脲 | 6849-92-9

• 分子结构分类: 有机化合物 - 有机酸及其衍生物 - 有机碳酸及其衍生物
• 中文名称: 1,3-二(2-甲氧基乙基)脲
• 英文名称: 1,3-bis(2-methoxyethyl)urea
• 英文别名: N,N'-Bis-<2-methoxy-aethyl>-harnstoff；1,3-Di-(2-methoxyethyl)harnstoff；N,N'-bis(2-methoxyethyl)urea；Urea, N,N'-bis(2-methoxyethyl)-
• CAS: 6849-92-9
• 化学式: C₇H₁₆N₂O₃
• mdl: MFCD14888610
• 分子量: 176.216
• InChiKey: CNVTWOGSWZHYAR-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  -0.9
• 重原子数：
  12
• 可旋转键数：
  6
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.857
• 拓扑面积：
  59.6
• 氢给体数：
  2
• 氢受体数：
  3

安全信息

• 海关编码：
  2924199090

反应信息

• 作为反应物：
  描述：

  1,3-二(2-甲氧基乙基)脲 在 [RuH(CO)(BPy-tPNN*)] 、 氢气 作用下， 以 四氢呋喃 为溶剂， 110.0 ℃ 、1.38 MPa 条件下， 反应 72.0h， 以94%的产率得到甲醇
  参考文献：
  名称：

  尿素衍生物的空前催化加氢为胺和甲醇

  摘要：

  间接CO 2 加氢：报道了尿素衍生物加氢成相应的胺和甲醇的情况（见图）。该反应由基于联吡啶的三齿PNN Ru（II）夹杂物催化，并在温和的中性条件下使用13.6 atm的H 2进行。由于可以从CO 2获得脲衍生物，因此提供了一种温和的方法将CO 2间接氢化为甲醇。

  DOI：

  10.1002/anie.201106612
• 作为产物：
  描述：

  N,N'-Di(2-methoxyethyl)thioharnstoff 在 sodium hydroxide 、 双氧水 作用下， 生成 1,3-二(2-甲氧基乙基)脲
  参考文献：
  名称：

  Peroxide Desulfurization of Thioureas

  摘要：

  DOI：

  10.1021/jo01066a072

文献信息

• Indirect reduction of CO₂ and recycling of polymers by manganese-catalyzed transfer hydrogenation of amides, carbamates, urea derivatives, and polyurethanes
  作者：Xin Liu、Thomas Werner

  DOI：10.1039/d1sc02663a

  日期：——

  approach to the indirect reduction of CO2. Notably, these are the first examples on the reduction of carbamates and urea derivatives as well as on the C–N bond cleavage in amides by transfer hydrogenation. The general applicability of this methodology is highlighted by the successful reduction of 12 urea derivatives, 26 carbamates and 11 amides. The corresponding amines, alcohols and methanol were obtained

  极性键（特别是羰基）的减少在有机化学和生物学中具有根本重要性。在此，我们报道了一种锰钳配合物作为一种多功能催化剂，用于酰胺、氨基甲酸酯、尿素衍生物甚至聚氨酯的转移氢化，产生相应的醇、胺和甲醇产品。由于这些化合物类别可以使用CO 2作为C1 结构单元来制备，因此所报道的反应代表了一种间接还原CO 2的方法。值得注意的是，这些是通过转移氢化还原氨基甲酸酯和脲衍生物以及酰胺中 C-N 键断裂的第一个例子。成功还原 12 种尿素衍生物、26 种氨基甲酸酯和 11 种酰胺，凸显了该方法的普遍适用性。相应的胺、醇和甲醇的产率达到97%，收率良好。此外，聚氨酯已成功转化，这代表了实现循环经济的可行战略。基于控制实验和观察到的中间体，提出了可行的机制。
• [EN] MANGANESE BASED COMPLEXES AND USES THEREOF FOR HOMOGENEOUS CATALYSIS<br/>[FR] COMPLEXES À BASE DE MANGANÈSE ET LEURS UTILISATIONS SERVANT À UNE CATALYSE HOMOGÈNE
  申请人：YEDA RES & DEV

  公开号：WO2017137984A1

  公开（公告）日：2017-08-17

  The present invention relates to novel manganese complexes and their use, inter alia, for homogeneous catalysis in (1) the preparation of imine by dehydrogenative coupling of an alcohol and amine; (2) C-C coupling in Michael addition reaction using nitriles as Michael donors; (3) dehydrogenative coupling of alcohols to give esters and hydrogen gas (4) hydrogenation of esters to form alcohols (including hydrogenation of cyclic esters (lactones) or cyclic di-esters (di- lactones), or polyesters); (5) hydrogenation of amides (including cyclic dipeptides, lactams, diamide, polypeptides and polyamides) to alcohols and amines (or diamine); (6) hydrogenation of organic carbonates (including polycarbonates) to alcohols or hydrogenation of carbamates (including polycarbamates) or urea derivatives to alcohols and amines; (7) dehydrogenation of secondary alcohols to ketones; (8) amidation of esters (i.e., synthesis of amides from esters and amines); (9) acylation of alcohols using esters; (10) coupling of alcohols with water and a base to form carboxylic acids; and (11) preparation of amino acids or their salts by coupling of amino alcohols with water and a base. (12) preparation of amides (including formamides, cyclic dipeptides, diamide, lactams, polypeptides and polyamides) by dehydrogenative coupling of alcohols and amines; (13) preparation of imides from diols.

  本发明涉及新型锰配合物及其用途，包括但不限于在以下领域进行均相催化：（1）通过醇和胺的脱氢偶联制备亚胺；（2）使用腈作为迈克尔供体进行迈克尔加成反应中的C-C偶联；（3）将醇脱氢偶联以得到酯和氢气；（4）将酯加氢以形成醇（包括环酯（内酯）或环二酯（二内酯）或聚酯的加氢）；（5）将酰胺（包括环二肽、内酰胺、二酰胺、多肽和聚酰胺）加氢以得到醇和胺（或二胺）；（6）将有机碳酸酯（包括聚碳酸酯）加氢以得到醇或将氨基甲酸酯（包括聚氨基甲酸酯）或脲衍生物加氢以得到醇和胺；（7）将二级醇脱氢以得到酮；（8）酯的酰胺化（即从酯和胺合成酰胺）；（9）使用酯对醇进行酰化；（10）将醇与水和碱偶联以形成羧酸；以及（11）通过氨基醇与水和碱的偶联制备氨基酸或其盐。（12）通过醇和胺的脱氢偶联制备酰胺（包括甲酰胺、环二肽、二酰胺、内酰胺、多肽和聚酰胺）；（13）从二醇制备酰亚胺。
• Iron-catalyzed urea synthesis: dehydrogenative coupling of methanol and amines
  作者：Elizabeth M. Lane、Nilay Hazari、Wesley H. Bernskoetter

  DOI：10.1039/c8sc00775f

  日期：——

  byproduct. Mechanistic studies indicate a stepwise pathway beginning with methanol dehydrogenation to give formaldehyde, which is trapped by amine to afford a formamide. The formamide is then dehydrogenated to produce a transient isocyanate, which reacts with another equivalent of amine to form a urea. These mechanistic insights enabled the development of an iron-catalyzed method for the synthesis of unsymmetric

  取代脲有许多应用，但它们的合成通常需要使用剧毒的起始材料。在此，我们描述了第一种通过甲醇与伯胺脱氢偶联选择性合成对称脲的贱金属催化剂。使用钳形负载铁催化剂，生成了一系列尿素，分离产率高达 80%（相当于催化转化率高达 160），且 H 2为唯一副产物。机理研究表明，从甲醇脱氢开始逐步生成甲醛，甲醛被胺捕获，生成甲酰胺。然后甲酰胺脱氢产生暂时的异氰酸酯，其与另一当量的胺反应形成脲。这些机理见解使得铁催化方法得以开发，用于从酰胺和胺合成不对称脲。
• Synthesis of urea derivatives from amines and CO2 in the absence of catalyst and solvent
  作者：Chaoyong Wu、Haiyang Cheng、Ruixia Liu、Qiang Wang、Yufen Hao、Yancun Yu、Fengyu Zhao

  DOI：10.1039/c0gc00059k

  日期：——

  Urea derivatives are obtained in mild to good yield from the reactions of primary aliphatic amines with CO2 in the absence of any catalysts, organic solvents or other additives. To optimize reaction conditions, experimental variables including temperature, pressure, the concentration of amine, reaction time etc. were studied. Satisfactory yields were obtained at the optimized conditions that are comparable

  尿素 从 脂肪族伯胺用CO 2在没有任何催化剂， 有机的 溶剂或其他添加剂。为了优化反应条件，研究了温度，压力，胺浓度，反应时间等实验变量。在优化的条件下获得了令人满意的产量，与存在下的可比性相当。催化剂 和 溶剂。对反应机理的初步研究表明，烷基氨基甲酸烷基铵迅速形成了中间体，然后通过分子内脱水形成了最终产物。
• RUTHENIUM COMPLEXES AND THEIR USES AS CATALYSTS IN PROCESSES FOR FORMATION AND/OR HYDROGENATION OF ESTERS, AMIDES AND RELATED REACTIONS
  申请人：YEDA RESEARCH AND DEVELOPMENT CO. LTD.

  公开号：US20170283447A1

  公开（公告）日：2017-10-05

  The present invention relates to novel Ruthenium complexes of formulae A1-A4 and their use, inter alia, for (1) dehydrogenative coupling of alcohols to esters; (2) hydrogenation of esters to alcohols (including hydrogenation of cyclic esters (lactones) or cyclic di-esters (di-lactones), or polyesters); (3) preparing amides from alcohols and amines—(including the preparation of polyamides (e.g., polypeptides) by reacting dialcohols and diamines and/or polymerization of amino alcohols and/or forming cyclic dipeptides from p-aminoalcohols; (4) hydrogenation of amides (including cyclic dipeptides, polypeptides and polyamides) to alcohols and amines; (5) hydrogenation of organic carbonates (including polycarbonates) to alcohols or hydrogenation of carbamates (including polycarbamates) or urea derivatives to alcohols and amines; (6) dehydrogenation of secondary alcohols to ketones; (7) amidation of esters (i.e., synthesis of amides from esters and amines); (8) acylation of alcohols using esters; (9) coupling of alcohols with water and a base to form carboxylic acids; and (10) preparation of amino acids or their salts by coupling of amino alcohols with water and a base. The present, invention further relates to the use of certain known Ruthenium complexes for the preparation of amino acids or their salts from amino alcohols.

  本发明涉及新型A1-A4式钌配合物及其用途，包括（1）醇的脱氢偶联制备酯；（2）酯的加氢制备醇（包括环酯（内酯）或环二酯（二内酯）的加氢，或聚酯的加氢）；（3）从醇和胺制备酰胺（包括通过二醇和二胺反应或氨基醇的聚合形成聚酰胺（例如，多肽），或从p-氨基醇形成环二肽）；（4）酰胺的加氢（包括环二肽、多肽和聚酰胺的加氢至醇和胺）；（5）有机碳酸酯（包括聚碳酸酯）的加氢至醇或羰基酸酯（包括聚羰基酸酯）或脲衍生物的加氢至醇和胺；（6）次级醇的脱氢至酮；（7）酯的酰胺化（即通过酯和胺合成酰胺）；（8）使用酯对醇进行酰化；（9）醇与水和碱的偶联形成羧酸；以及（10）通过氨基醇与水和碱的偶联制备氨基酸或其盐。本发明还涉及使用某些已知的钌配合物从氨基醇制备氨基酸或其盐。