methyl-triethylphosphonium bromide | 39763-48-9

• 分子结构分类: 有机化合物 - 有机磷化合物 - 四烷基鏻化合物
• 英文名称: methyl-triethylphosphonium bromide
• 英文别名: Et3PMe(+)*Br(-)；triethylmethylphosphonium bromide；Methylthriethylphosphonium bromid；Triethyl(methyl)phosphanium;bromide
• CAS: 39763-48-9
• 化学式: Br*C₇H₁₈P
• 分子量: 213.098
• InChiKey: SCHLFXXEFZSLSD-UHFFFAOYSA-M

计算性质

• 辛醇/水分配系数(LogP)：
  -0.3
• 重原子数：
  9
• 可旋转键数：
  3
• 环数：
  0.0
• sp3杂化的碳原子比例：
  1.0
• 拓扑面积：
  0
• 氢给体数：
  0
• 氢受体数：
  1

反应信息

• 作为反应物：
  描述：

  methyl-triethylphosphonium bromide 在 sodium amide 作用下， 以 四氢呋喃 为溶剂， 生成 Triethyl-methylen-phosphoran
  参考文献：
  名称：

  Koester,R. et al., Justus Liebigs Annalen der Chemie, 1970, vol. 739, p. 211 - 219

  摘要：

  DOI：
• 作为产物：
  描述：

  溴乙烷 、 甲基二乙基膦 生成 methyl-triethylphosphonium bromide
  参考文献：
  名称：

  Alkaline cleavage reactions of tetraalkylphosphonium salts

  摘要：

  DOI：

  10.1021/ja00782a035

文献信息

• Dichotomous Reactivity in the Reaction of Triethyl- and Triphenylphosphane HBr Salts with Dimethyl Acetals: A Novel Entry to α-Alkoxy-Functionalized Ylides and General Synthesis of Vinyl Ethers and Alkoxy Dienes
  作者：Priyabrata Das、James McNulty

  DOI：10.1002/ejoc.201000601

  日期：2010.7

  discovery of dichotomous reactivity in the reaction of trialkyl- vs. triphenylphosphane HBr salts with acetals allows entry to functionalized α-methoxy phosphonium salts and a novel process for tertiary phosphane methylation. The new protocol opens a general entry to the synthesis of vinyl ethers and differentially substituted 1,3-dienes via Wittig reactions of the functionalized ylides derived from

  三烷基与三苯基膦 HBr 盐与缩醛反应中二分反应性的发现允许进入官能化的 α-甲氧基鏻盐和叔膦甲基化的新方法。新协议打开了合成乙烯基醚和差异取代的 1,3-二烯的通用入口，通过来自 α-甲氧基鏻盐的官能化叶立德的 Wittig 反应。
• Process for preparation of carotenoids
  申请人：——

  公开号：US20040204612A1

  公开（公告）日：2004-10-14

  A disulfone compound represented by the general formula (3): 1 wherein Ar is optionally substituted aryl, Y is hydrogen or oxo, and each wavy line represents either of E/Z geometrical isomers or a mixture thereof; a process for the preparation of the compound; intermediates thereof; and a process for the preparation of a carotenoid represented by the general formula (4): 2 wherein Y and each wavy line are as defined above, comprising reacting a disulfone compound of the general formula (3) with a basic compound.

  一种由通式（3）表示的二磺酮化合物：其中Ar是可选择的取代芳基，Y是氢或氧代基，每个波浪线表示E/Z几何异构体之一或其混合物；一种制备该化合物的方法；其中间体；以及一种制备通式（4）所表示的类胡萝卜素的方法：其中Y和每个波浪线如上所定义，包括将通式（3）的二磺酮化合物与碱性化合物反应。
• Dihalo-compound and process for producing vitamin A derivative
  申请人：——

  公开号：US20010025127A1

  公开（公告）日：2001-09-27

  There is disclosed a dihalo-compound of formula (1): 1 wherein X 1 and X 2 represent different halogen atoms, R represents a hydrogen atom or a protective group for a hydroxyl group, and a process for producing vitamin A derivative via a sulfone derivative of formula (5): 2 wherein Ar represents an optionally substituted aryl group, and R represents the same as defined above.

  公开了一种式子为（1）的二卤代化合物：1其中X1和X2代表不同的卤素原子，R代表氢原子或羟基的保护基团，并且通过式子为（5）的磺酰衍生物制备维生素A衍生物的方法：2其中Ar代表可选取代的芳基团，R与上述定义相同。
• NOVEL SULFONE DERIVATIVES AND PROCESS FOR PRODUCING THESE
  申请人：SUMITOMO CHEMICAL COMPANY LIMITED

  公开号：EP1359143A1

  公开（公告）日：2003-11-05

  There are provided production processes for cyclic sulfone compounds of formula (2) or (4): or wherein the dashed lines represent that a double bond is present at one of three positions indicated; Ar and the wavy line are as defined below, characterized in that compounds of formula (1) or (3): or wherein Ar is aryl optionally having a substituent(s) and the wavy line represents either one of E/Z geometrical isomers or their mixture, is subjected to cyclization in the presence of an acid catalyst. These processes are excellent processes as the production processes for retinol from the viewpoints of raw material costs, intermediate purification, the number of steps, and the like.

  提供了化合物公式（2）或（4）的循环磺酮化合物的生产过程：其中虚线表示在所示的三个位置之一存在双键；Ar和波浪线如下所定义，其特征在于将化合物公式（1）或（3）：其中Ar是芳基，可以具有取代基，波浪线表示E/Z几何异构体之一或其混合物，在酸催化剂的存在下进行环化。这些过程是优秀的过程，从原材料成本、中间体纯化、步骤数量等方面来看，是维生素A生产过程的优秀替代方法。
• Catalyst for curing epoxy resins, method for making the same, epoxy resin composition, and powder coating composition
  申请人：——

  公开号：US20030109378A1

  公开（公告）日：2003-06-12

  A catalyst for curing epoxy resins comprises a tetraalkylphosphonium tetrafluoroborate represented by Formula (1): 1 wherein R 1 , R 2 , R 3 , and R 4 are each C1-C5 linear or branched alkyl and may be the same or different, and the halogen ion content in the tetraalkylphosphonium tetrafluoroborate is 20 ppm or less. An epoxy resin powder coating composition containing this catalyst exhibits a prolonged pot life and can be baked at decreased temperatures.

  一种用于固化环氧树脂的催化剂，包括公式（1）所表示的四烷基氟硼酸盐，其中R1、R2、R3和R4均为C1-C5的线性或支链烷基，可以相同也可以不同，四烷基氟硼酸盐中的卤素离子含量为20 ppm或更低。含有该催化剂的环氧树脂粉末涂料组合物具有较长的搅拌寿命，并且可以在较低温度下烘烤。