3,5-dimethylphenyl mesylate | 1070731-22-4

• 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: 3,5-dimethylphenyl mesylate
• 英文别名: 3,5-dimethylphenyl methanesulfonate；(3,5-Dimethylphenyl) methanesulfonate
• CAS: 1070731-22-4
• 化学式: C₉H₁₂O₃S
• 分子量: 200.258
• InChiKey: VZGRQFLWOHQVPY-UHFFFAOYSA-N

物化性质

• 熔点：
  41.7-43.4 °C
• 沸点：
  327.3±42.0 °C(Predicted)
• 密度：
  1.198±0.06 g/cm3(Temp: 20 °C; Press: 760 Torr)(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  2.2
• 重原子数：
  13
• 可旋转键数：
  2
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.33
• 拓扑面积：
  51.8
• 氢给体数：
  0
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  3,5-dimethylphenyl mesylate 、 对甲苯基三甲基硅烷 在 2-[2-(二环己基膦基)苯基]-N-甲基吲哚 、 四丁基氟化铵 、 palladium diacetate 、 溶剂黄146 作用下， 以 叔丁醇 为溶剂， 反应 16.0h， 以84%的产率得到1,3-二甲基-5-(4-甲基苯基)苯
  参考文献：
  名称：

  Palladium−Indolylphosphine-Catalyzed Hiyama Cross-Coupling of Aryl Mesylates

  摘要：

  Aryl mesylates are found to be applicable as electrophiles in organosilicon-mediated coupling reactions. The catalyst system comprising 2 mol % of Pd(OAc)(2) and CM-phos supporting ligand is highly effective in catalyzing Hiyama cross-coupling of various aryl and heteroaryl mesylates. Interesting acid additive effects show that the presence of 0.25-0.50 equiv of acetic acid efficiently suppresses the mesylate decomposition and generally promotes the coupling product yields.

  DOI：

  10.1021/ol802493z
• 作为产物：
  描述：

  甲基磺酰氯 、 3,5-二甲基苯酚 在 三乙胺 作用下， 以 二氯甲烷 为溶剂， 生成 3,5-dimethylphenyl mesylate
  参考文献：
  名称：

  Suzuki-Miyaura偶联的芳基三氟硼酸钾和甲磺酸烷基酯的通用钯催化剂体系

  摘要：

  给出了芳基和杂芳基甲磺酸酯与芳基钾和杂芳基三氟硼酸钾的钯催化的Suzuki型交叉偶联的第一个一般实例。除了联芳基偶合以外，还成功地完成了甲磺酸甲基芳基酯与烷基和乙烯基三氟硼酸酯盐的交叉偶联反应。

  DOI：

  10.1021/jo100846t

文献信息

• An efficient palladium–benzimidazolyl phosphine complex for the Suzuki–Miyaura coupling of aryl mesylates: facile ligand synthesis and metal complex characterization
  作者：Kin Ho Chung、Chau Ming So、Shun Man Wong、Chi Him Luk、Zhongyuan Zhou、Chak Po Lau、Fuk Yee Kwong

  DOI：10.1039/c2cc15972d

  日期：——

  A new class of easily accessible hemilabile benzimidazolyl phosphine ligands has been developed. The ligand skeleton is prepared from commercially available and inexpensive o-phenylenediamine and 2-bromobenzoic acid. With catalyst loading down to 0.5 mol% palladium, excellent catalytic activity towards the Suzuki-Miyaura coupling of aryl mesylates is still observed. This represents the lowest catalyst

  已经开发出一种新型的易于获得的半不稳定的苯并咪唑基膦配体。配体骨架由可商购的和廉价的邻苯二胺和2-溴苯甲酸制备。在催化剂负载量低至0.5mol％钯的情况下，仍观察到对甲磺酸甲磺酸酯的Suzuki-Miyaura偶联的优异催化活性。通常，这代表了迄今为止该反应所达到的最低催化剂负载量。X射线晶体学表明，新的配体L2以Kappa（2）-P，N的方式与Pd配合。
• PROCESS FOR PRODUCING AROMATIC AMINES
  申请人：TAKASAGO INTERNATIONAL CORPORATION

  公开号：US20020035295A1

  公开（公告）日：2002-03-21

  The present invention provides an activator in arylamination using a palladium compound as a catalyst, which is superior to conventional phosphines in stability and performance. With the phosphine sulfide as an activator, an arylamination reaction achieves improved selectivity to produce a desired aromatic amine in an obviously increased yield as compared with a reaction using the corresponding phosphine compound. Moreover, the phosphine sulfide of the invention is impervious to oxidation and exists stably in air and therefore sufficiently withstands use on an industrial scale.

  本发明提供了一种在芳基化反应中使用钯化合物作为催化剂的活化剂，其在稳定性和性能方面优于传统的膦化合物。通过使用膦硫化物作为活化剂，芳基化反应实现了改善的选择性，以明显增加的产量生产所需的芳香胺，与使用相应的膦化合物的反应相比。此外，本发明的膦硫化物不受氧化影响，在空气中存在稳定，因此足以在工业规模上使用。
• Palladium-Catalyzed Direct Arylation of Heteroarenes with Aryl Mesylates
  作者：Chau Ming So、Chak Po Lau、Fuk Yee Kwong

  DOI：10.1002/chem.201002354

  日期：2011.1.17

  Not so challenging after all! The first general examples of the direct arylation of heteroarenes by using challenging aryl mesylates as electrophiles are disclosed. These easy reaction conditions also allow the functionalization of other heterocycles, such as caffeine, triazole and benzathiazole (see scheme).

  毕竟不是那么具有挑战性！公开了通过使用具有挑战性的甲磺酸烷基酯作为亲电子试剂来杂芳烃直接芳基化的第一个一般实例。这些简单的反应条件还可以使其他杂环官能化，例如咖啡因，三唑和苯并噻唑（参见方案）。
• 2,2 (Diarlyl) Vinylphosphine compound, palladium catalyst thereof, and process for producing arylamine, diaryl, or arylalkyne with the catalyst
  申请人：——

  公开号：US20020058837A1

  公开（公告）日：2002-05-16

  A novel 2,2-(diaryl)vinylphosphine compound represented by the following general formula (1): 1 (wherein R 1 is a hydrogen atom, an alkyl group having 1 to 6 carbon atoms, an alicyclic group having 5 to 7 carbon atoms, etc.; R 2 , R 3 , R 4 , R 5 , R 6 , and R 7 may be the same or different and each is an alkyl group having 1 to 6 carbon atoms, an alicyclic group having 5 to 7 carbon atoms, etc., provided that R 4 and R 5 taken together and/or R 6 and R 7 taken together may represent a fused benzene ring, a substituted fused benzene ring, a trimethylene group, etc.; and p, q, r, and s each is 0 to 5, provided that p+q and r+s each is in the range of from 0 to 5); a palladium-phosphine catalyst obtained by causing a palladium compound to act on the novel 2,2-(diaryl)vinylphosphine compound; and a process for obtaining an arylamine, a diaryl and an arylalkyne in the presence of the palladium-phosphine catalyst.

  一种由以下通用公式（1）表示的新型2,2-(二芳基)乙烯膦化合物：其中R1是氢原子、具有1至6个碳原子的烷基基团、具有5至7个碳原子的脂环基团等；R2、R3、R4、R5、R6和R7可能相同或不同，每个是具有1至6个碳原子的烷基基团、具有5至7个碳原子的脂环基团等，但要求R4和R5一起和/或R6和R7一起可能代表融合苯环、取代融合苯环、三亚甲基基团等；p、q、r和s每个为0至5，但要求p+q和r+s分别在0至5的范围内；通过使钯化合物作用于新型2,2-(二芳基)乙烯膦化合物而获得的钯-膦催化剂；以及在钯-膦催化剂存在下获得芳胺、二芳基和芳基炔的方法。
• Exploiting Aryl Mesylates and Tosylates in Catalytic Mono-α-arylation of Aryl- and Heteroarylketones
  作者：Wai Chung Fu、Chau Ming So、On Ying Yuen、Irene Toi Chuk Lee、Fuk Yee Kwong

  DOI：10.1021/acs.orglett.6b00643

  日期：2016.4.15

  The first general palladium catalyst for the catalytic mono-α-arylation of aryl- and heteroarylketones with aryl mesylates and tosylates is described. The newly developed indolyl-derived phosphine ligand L7 has been identified to promote this reaction efficiently. The key to success is attributed to the enhanced steric congestion of the catalyst and effective oxidative addition of the C(Ar)–OMs bond

  描述了用于芳基-和杂芳基酮与甲磺酸甲磺酸酯和甲苯磺酸酯的催化单-α-芳基化的第一种通用钯催化剂。已经确定了新开发的吲哚基衍生的膦配体L7可以有效地促进该反应。成功的关键归因于催化剂空间拥堵的增强和C （Ar） –OMs键的有效氧化加成。在Pd（OAc）2（0.25-2.5 mol％）和L7的存在下，选择性单芳基化反应可在足够的反应范围内实现，并且产物收率高达95％。重要的是，我们证明了该协议对生物酚类化合物的修饰的适用性，使其可用于酚类（前）药物的功能化。