2,6-dimethylmethanesulfonate | 58924-23-5

• 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: 2,6-dimethylmethanesulfonate
• 英文别名: 2.6-Xylylmethansulfonat；2,6-dimethylphenyl methanesulfonate；2,6-Xylyl methanesulphonate；(2,6-dimethylphenyl) methanesulfonate
• CAS: 58924-23-5
• 化学式: C₉H₁₂O₃S
• 分子量: 200.258
• InChiKey: NQZNOBXLLOZHIT-UHFFFAOYSA-N

物化性质

• 沸点：
  320.2±42.0 °C(Predicted)
• 密度：
  1.198±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  2.6
• 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：

  2,6-dimethylmethanesulfonate 、 2-甲基苯硼酸 在 2-(2-(dicyclohexylphosphino)phenyl)-1-isopropyl-1H-indole 、 palladium diacetate 、 potassium carbonate 、 三乙胺 作用下， 以 叔丁醇 为溶剂， 反应 18.0h， 以81%的产率得到1,3-二甲基-2-(2-甲基苯基)苯
  参考文献：
  名称：

  (2﹣二取代膦苯基)-1-烷基-吲哚膦配体及其 合成方法和应用

  摘要：

  本发明公开了(2﹣二取代膦苯基)‑1‑烷基‑吲哚膦配体及其合成方法和应用，所述(2﹣二取代膦苯基)‑1‑烷基‑吲哚膦配体结构式为：式中R为乙基，或者正丙基，或者异丙基，或者正丁基，或者异丁基，或者仲丁基，或者C5‑C10的烷基、或者甲基氰、或者甲基甲氧基，R’为苯基，或者乙基，或者异丙基，或者环己基，R”和R”’为甲基，或者C2‑C10的烷基、或者甲基甲氧基。本发明所提供的吲哚骨架类膦配体，对空气稳定，易于储存及处理。吲哚骨架中氮上的取代基可调控整个配体的电子及立体构型。关键是配体的合成简便，总收率高，易于大量合成制备。

  公开号：

  CN104945434B
• 作为产物：
  描述：

  2,6-二甲基苯酚 、 甲基磺酰氯 在 吡啶 作用下， 以 二氯甲烷 为溶剂， 以78%的产率得到2,6-dimethylmethanesulfonate
  参考文献：
  名称：

  Ni(COD)₂/PCy₃ Catalyzed Cross-Coupling of Aryl and Heteroaryl Neopentylglycolboronates with Aryl and Heteroaryl Mesylates and Sulfamates in THF at Room Temperature

  摘要：

  Reaction conditions for the Ni(COD)(2)/PCy3 catalyzed cross-coupling of aryl neopentylglycolboronates with aryl mesylates were developed. By using optimized reaction conditions, Ni(COD)(2)/PCy3 was shown to be a versatile catalyst for the cross-coupling of a diversity of aryl neopentylglycolboronates with aryl and heteroaryl mesylates and sulfamates containing both electron-donating and electron-withdrawing substituents in their para, ortho, and meta positions in THF at room temperature. This Ni-catalyzed cross-coupling of aryl neopentylglycolboronates is also effective for the synthesis of heterobiaryls and biaryls containing electrophilic functionalities sensitive to organolithium and organomagnesium derivatives. In combination with the recently developed Ni-catalyzed neopentylglycolborylation, all Ni-catalyzed routes to functional biaryls and heterobiaryls are now easily accessible.

  DOI：

  10.1021/jo202037x

文献信息

• 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。
• 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。
• On the intermediacy of phenyl hydrogen sulfates in the sulfonation of phenols. Sulfonation of phenol, anisole, methyl phenyl sulfate, the 2-halogenophenols, a series of phenyl methanesulfonates together with 2,6-dimethylaniline and its N-methylsulfonyl de
  作者：Peter de Wit、Alex F. Woldhuis、Hans Cerfontain

  DOI：10.1002/recl.19881071204

  日期：——

  The sulfonation of methyl phenyl sulfate (4) with concentrated aqueous sulfuric acid at 25°C yields the 4-sulfonic acid. This initial product then decomposes to give phenol-4-sulfonic acid, which is subsequently sulfonated to phenol-2,4-disulfonic acid. From the first-order-rate coefficients obtained for sulfonation of phenyl methanesulfonate (3) and (4) in 93.2% H2SO4, for which acid concentration

  在25℃下用浓硫酸水溶液磺化甲基苯基硫酸酯（4），得到4-磺酸。然后该初始产物分解得到苯酚-4-磺酸，随后将其磺化为苯酚-2,4-二磺酸。从在93.2％H 2 SO 4中将甲磺酸苯基酯（3）和（4）磺化所获得的一级系数，对于磺酸浓度为H 2 S 2 O 7的酸浓度，其σp +值OSO 2 Me和OSO 2已确定OMe取代基分别为0.40和0.46。2-氯苯基（10）和2-甲基苯基甲磺酸盐（14）在2.0 °C下在硝基甲烷中用2.0当量的SO 3磺化产生4-磺酸作为排他的产物，而2-甲氧基苯基甲烷磺酸盐（13），在相同条件下，仅形成5-磺酸。
• Substituent effects on sulfonate ester based olefinations
  作者：Joel M. Hawkins、Timothy A. Lewis、Andre S. Raw

  DOI：10.1016/s0040-4039(00)94408-3

  日期：1990.1

  The anions of sulfonate esters derived from acidic alcohols olefinate carbonyl compounds. The dependence of the yield and stereochemistry of olefination on the sulfonate ester's alkoxy substituent are consistent with a mechanism where apicophilic alkoxy groups promote olefination via 10-S-5 intermediate 3.

  衍生自酸性醇烯酸酯羰基化合物的磺酸酯的阴离子。烯烃酯的收率和立体化学对磺酸酯烷氧基取代基的依赖性与亲脂性烷氧基通过10-S-5中间体3促进烯化的机理一致。
• Production of organic compounds
  申请人：FBC Limited

  公开号：US04351968A1

  公开（公告）日：1982-09-28

  Pyrogallol, and analogues thereof having an alkyl, carboxy or alkoxycarbonyl substituent in the benzene ring, and their salts, are prepared by oxidizing, preferably by hydrogen peroxide, the corresponding compounds in which 1 or 2 of the OH groups are replaced by --COR.sup.5 groups where R.sup.5 represents hydrogen, alkyl or phenylalkyl. The production of intermediates is also described and some of these are novel.

  Pyrogallol及其类似物，在苯环中具有烷基，羧基或烷氧羰基取代基，以及它们的盐，通过氧化相应的化合物制备而成，其中1或2个OH基团被--COR.sup.5基团取代，其中R.sup.5代表氢，烷基或苯基烷基。还描述了中间体的生产方法，其中一些是新颖的。