1,1,3,3-Tetrabutyl-1,3-dimethoxydistannoxan | 5926-85-2

• 分子结构分类: 有机化合物 - 有机金属化合物 - 有机过渡后金属化合物
• 英文名称: 1,1,3,3-Tetrabutyl-1,3-dimethoxydistannoxan
• 英文别名: tetra butyl dimethoxide distannoxane；1,3-dimethoxy-1,1,3,3-tetrabutyldistannoxane；bis(dibutylmethoxytin) oxide；metal methoxide from dibutiltin oxide and methanol；1,1,3,3-tetrabutyl-1,3-dimethoxy-distannoxane；dibutyl-[dibutyl(methoxy)stannyl]oxy-methoxystannane
• CAS: 5926-85-2
• 化学式: C₁₈H₄₂O₃Sn₂
• 分子量: 543.95
• InChiKey: WGXIHTBBHDMEFD-UHFFFAOYSA-N

物化性质

• 沸点：
  399.9±25.0 °C(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  6.38
• 重原子数：
  23
• 可旋转键数：
  16
• 环数：
  0.0
• sp3杂化的碳原子比例：
  1.0
• 拓扑面积：
  27.7
• 氢给体数：
  0
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  1,1,3,3-Tetrabutyl-1,3-dimethoxydistannoxan 在 溶剂黄146 作用下， 以 二氯甲烷 为溶剂， 生成 1-acetoxy-3-methoxy-1,1,3,3-tetrabutyldistannoxane
  参考文献：
  名称：

  Gross, David C., Inorganic Chemistry, 1989, vol. 28, # 12, p. 2355 - 2359

  摘要：

  DOI：
• 作为产物：
  描述：

  1,1,3,3-tetrabutyl-1,3-dimethoxydistannoxane 以 甲醇 为溶剂， 生成 1,1,3,3-Tetrabutyl-1,3-dimethoxydistannoxan
  参考文献：
  名称：

  Di-n-butyltin(IV)-catalyzed dimethyl carbonate synthesis from carbon dioxide and methanol: An in situ high pressure 119Sn{1H} NMR spectroscopic study

  摘要：

  The reactivity of five di-n-butyltin(IV) complexes, n-Bu2Sn(OR)(2) (1), n-Bu2SnO (3), [n-Bu2Sn(OR)](2)O (4), (n-Bu2SnO)(2)(CO2) (6) and (n-Bu2SnO)(6)[(n-Bu2SnOR)(2)(CO3)](2) (7) (R = CH3), with CO2, suggested as possible catalyst precursors and key-intermediates for the direct synthesis of dimethyl carbonate from carbon dioxide and methanol, has been investigated using high-pressure Sn-119{H-1} NMR (HP-NMR) spectroscopy. Four of the five precursors studied, i.e. 3, 4, 6 and 7 give rise to an identical Sn-119{H-1} NMR pattern which can be explicitly attributed to the fingerprint of the dimeric form of the 1-methoxy-3-methylcarbonatotetrabutyldistannoxane {5}(2). However, with 1, a new pair of signals is observed in addition to the characteristic Sn-119{H-1} NMR resonances of the dimeric hemicarbonato species {2}(2) and {5}(2), which can be attributed to the in situ formation of an unprecedented species suggested to be the trinuclear carbonato di-n-butyltin(IV) complex, 8. (C) 2011 Elsevier B. V. All rights reserved.

  DOI：

  10.1016/j.jorganchem.2011.02.010
• 作为试剂：
  描述：

  甲醇 、 二氧化碳 在 1,1,3,3-Tetrabutyl-1,3-dimethoxydistannoxan 、 diphenylammonium triflate 2,2-二甲氧基丙烷 作用下， 180.0 ℃ 、30.4 MPa 条件下， 反应 24.0h， 以34%的产率得到碳酸二甲酯
  参考文献：
  名称：

  WO2006/109775

  摘要：

  公开号：

文献信息

• Process for synthesizing sucrose derivatives by regioselective reaction
  申请人：Noramco, Inc.

  公开号：US04950746A1

  公开（公告）日：1990-08-21

  Sucrose is reacted with a 1,3-di(hydrocarbyloxy)-1,1,3,3-tetra(hydrocarbyl)distannoxane to produce a 1,3-di-(6-O-sucrose)-1,1,3,3-tetra(hydrocarbyl)distannoxane, which can be acylated to produce a sucross-6-ester.

  蔗糖与1,3-二(羟烷氧基)-1,1,3,3-四(烷基)二锡氧烷反应，生成1,3-二-(6-O-蔗糖基)-1,1,3,3-四(烷基)二锡氧烷，可以酰化成蔗糖-6-酯。
• METHOD FOR PRODUCING A CARBONIC ESTER
  申请人：Asahi Kasei Chemicals Corporation

  公开号：EP1460056B1

  公开（公告）日：2011-10-05
• Diol-tin ketal as effective catalyst in the tin mediated benzoylation of polyols
  作者：Ezio Fasoli、Antonio Caligiuri、Stefano Servi、Davide Tessaro

  DOI：10.1016/j.molcata.2005.08.042

  日期：2006.2

  The monobenzoylation of 1-phenyl-1,2-ethanediol in the presence of different tin reagent has been studied. The stannylene ketal of 1-phenyl-1,2-ethanediol has been prepared and used as a catalyst or generated in situ by exchange with other mixed tin ketals. In either case, the acylation occurs rapidly with 2 mol% of the catalyst with the known selectivity. These experiments clearly establish the catalytic nature of the acylation reaction. (c) 2005 Elsevier B.V. All rights reserved.

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