(R)-(+)-phenyl p-tolyl sulfoxide | 16491-20-6

• 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: (R)-(+)-phenyl p-tolyl sulfoxide
• 英文别名: (R)-Phenyl-p-tolylsulfoxid；1-methyl-4-[(R)-phenylsulfinyl]benzene
• CAS: 16491-20-6
• 化学式: C₁₃H₁₂OS
• 分子量: 216.304
• InChiKey: NBNQTORHACKHCW-OAHLLOKOSA-N

物化性质

• 沸点：
  367.9±21.0 °C(Predicted)
• 密度：
  1.22±0.1 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  2.4
• 重原子数：
  15
• 可旋转键数：
  2
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.08
• 拓扑面积：
  36.3
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  (R)-(+)-phenyl p-tolyl sulfoxide 在 (racemization) 作用下， 以 xylene 为溶剂， 生成 2-甲基二苯并[b,d]噻吩5-氧化物
  参考文献：
  名称：

  Thermal racemization of diaryl, alkyl aryl, and dialkyl sulfoxides by pyramidal inversion

  摘要：

  DOI：

  10.1021/ja01020a019
• 作为产物：
  描述：

  二乙基(苯基硫代甲基)磷酸酯 在 titanium(IV) isopropylate 、 叔丁基过氧化氢 、 水 、 (R)-1,1'-Bi-2-naphthol 作用下， 以 四氯化碳 为溶剂， 反应 1.0h， 生成 (R)-(+)-phenyl p-tolyl sulfoxide
  参考文献：
  名称：

  Enantioselective Catalytic Oxidation of (Arylthio)- or (Alkylthio)methylphosphonates as a Route to Enantiomeric Pure Aryl Alkyl or Dialkyl Sulfoxides

  摘要：

  DOI：

  10.1021/ja982836w
• 作为试剂：
  描述：

  正丁基锂 在 (R)-(+)-phenyl p-tolyl sulfoxide 作用下， 以 四氢呋喃 为溶剂， 反应 0.25h， 以20%的产率得到butyl(p-tolyl)sulfoxide
  参考文献：
  名称：

  Extremely facile ligand-exchange and disproportionation reactions of diaryl sulfoxides, selenoxides, and triarylphosphine oxides with organolithium and Grignard reagents

  摘要：

  Diaryl sulfoxides undergo unusually rapid ligand-exchange reaction upon treatment with organolithium reagents at -95-degrees-C. Optically pure phenyl p-tolyl sulfoxide (4b) reacted with organolithium reagents at the range from -20 to -95-degrees-C to give facile ligand-exchange and disproportionation products, i.e., diphenyl sulfoxide (7), recovered 4b, and di-p-tolyl sulfoxide (8) in a statistical ratio of 1:2:1 in quantitative yields, and the recovered 4b was completely racemized. This facile ligand exchange was observed in the similar reactions using only diaryl selenoxides and triarylphosphine oxides. The reactions of O-18-labeled phenyl p-tolyl sulfoxide (4c) with organolithium reagents gave products in a statistical ratio without O-18 scrambling, indicating that only the C-S bond cleavage took place under low temperature. It is suggested that the ligand exchange reactions occur by the nucleophilic attack by organolithium reagent at the sulfinyl sulfur atom, giving sigma-sulfurane as an intermediate that collapses rapidly. These results suggest that the treatment of arylic sulfoxides, selenoxides, and phosphine oxides with strong bases should be effected with caution.

  DOI：

  10.1021/jo00022a024

文献信息

• Investigation of Functionalized α-Chloroalkyllithiums for a Stereospecific Reagent-Controlled Homologation Approach to the Analgesic Alkaloid (−)-Epibatidine
  作者：Christopher R. Emerson、Lev N. Zakharov、Paul R. Blakemore

  DOI：10.1002/chem.201302511

  日期：2013.11.25

  respectively; α‐deuterated isotopomers D‐18 a and D‐18 d gave yields of 33 and 79 % for the same reaction. Double StReCH of 17 was pursued to target contiguous stereodiads appropriate for the total synthesis of (−)‐epibatidine (15). One‐pot double StReCH of boronate 17 by two exposures to (S)‐D‐18 a (≤66 % ee), followed by work‐up with KOOH, gave the expected stereodiad product in 16 % yield (d.r.∼67:33)

  四个假定的功能化α-氯烷基锂RCH 2 CHLiCl，其中R = CHCH 2（18 a），CCH（18 b），CH 2 OBn（18 c）和CH [O（CH 2）2 O]（18 d），由α-氯亚砜中的亚砜-锂交换原位生成，并研究了苯乙基和2-氯吡啶-5-基（17）频哪醇硼酸酯的立体定向试剂控制的同源性（StReCH）。氘标记实验表明，α - chloroalkyllithiums是由质子转移从他们的α淬火-氯亚砜的前体，并已确定这种效果会影响StReCH反应的收率。发现使用α-氘代α-氯亚砜可以通过抑制类胡萝卜素与其前体之间的酸碱化学反应速率来改善该问题。卡宾18和18b中显示STRECH疗效不佳，特别是炔丙基轴承卡宾18b中，不稳定性，其中归因于一个浅显1,2-氢化物转移。相比之下，在18 d时，受益于O和Li原子之间稳定相互作用的类胡萝卜素具有良好的StReCH收率。硼酸酯17是通过链延长卡宾18，18b中，和18
• Investigation of steric and electronic effects in the copper-catalysed asymmetric oxidation of sulfides
  作者：Graham E. O'Mahony、Kevin S. Eccles、Robin E. Morrison、Alan Ford、Simon E. Lawrence、Anita R. Maguire

  DOI：10.1016/j.tet.2013.08.063

  日期：2013.11

  in the copper-catalysed asymmetric oxidation of aryl benzyl, aryl alkyl and alkyl benzyl sulfides have been investigated. The presence of an aryl group directly attached to the sulfur is essential to afford sulfoxides with high enantioselectivities, with up to 97% ee for 2-naphthyl benzyl sulfoxide, the highest enantioselectivity achieved to date for copper-catalysed asymmetric sulfoxidation. In contrast

  已经研究了在铜催化的芳基苄基，芳基烷基和烷基苄基硫化物的不对称氧化中的立体效应和电子效应。直接连接到硫上的芳基的存在对于提供具有高对映选择性的亚砜是必不可少的，2-萘基苄基亚砜具有高达97％ee的电子，这是迄今为止铜催化的不对称亚砜氧化所达到的最高对映选择性。与此相反，苄基取代基可以通过在空间上可比基团与对映选择性上没有影响取代。的取代的芳基苄基硫化物铜 - 介导的氧化导致显示在相当或更低的对映选择性，以与未取代的苄基苯基硫醚获得的那些适度立体和电子效应。
• Palladium/PC-Phos-Catalyzed Enantioselective Arylation of General Sulfenate Anions: Scope and Synthetic Applications
  作者：Lei Wang、Mingjie Chen、Peichao Zhang、Wenbo Li、Junliang Zhang

  DOI：10.1021/jacs.8b00178

  日期：2018.3.7

  Herein we reported an efficient palladium-catalyzed enantioselective arylation of both alkyl and aryl sulfenate anions to deliver various chiral sulfoxides in good yields (up to 98%) with excellent enantioselectivities (up to 99% ee) by the use of our developed chiral O,P-ligands (PC-Phos). PC-Phos are easily prepared in short steps from inexpensive commercially available starting materials. The single-crystal

  在此，我们报道了一种有效的钯催化对映选择性芳基化烷基和芳基次磺酸根阴离子，通过使用我们开发的手性 O，以良好的收率（高达 98%）和优异的对映选择性（高达 99% ee）提供各种手性亚砜， P-配体（PC-Phos）。PC-Phos 很容易从廉价的市售起始材料中以短步骤制备。PC4/PdCl2 的单晶结构表明，通过与钯 (II) 中心的 O,P 配位形成了一个很少观察到的 11 元环。该方法的显着特点包括底物范围广、易于放大、适用于生物活性化合物的后期修饰以及市售药物舒林酸的合成。
• Absolute Stereochemical Determination of Asymmetric Sulfoxides via Central to Axial Induction of Chirality
  作者：Hadi Gholami、Jun Zhang、Mercy Anyika、Babak Borhan

  DOI：10.1021/acs.orglett.7b00495

  日期：2017.4.7

  The absolute configuration of chiral sulfoxides is determined by means of host–guest complexation that leads to the induction of axial chirality in an achiral host. The central to axial induction of helicity is rationalized by a simple recognition of the relative length and size of the substituents attached to the S-center. This technique is used to determine the absolute configuration of chiral sulfoxides

  手性亚砜的绝对构型是通过主体-客体的络合作用确定的，从而导致在非手性主体中产生轴向手性。通过简单地识别与S中心相连的取代基的相对长度和大小，可以合理地实现对螺旋的中心诱导。该技术用于确定手性亚砜的绝对构型，不需要微功能化的样品，只需几克样品。
• Practical and highly stereoselective technology for preparation of enantiopure sulfoxides and sulfinamides utilizing activated and functionally differentiated N-sulfonyl-1,2,3-oxathiazolidine-2-oxide derivatives
  作者：Zhengxu Han、Dhileepkumar Krishnamurthy、Paul Grover、Q. Kevin Fang、Xiping Su、H. Scott Wilkinson、Zhi-Hui Lu、Daniel Magiera、Chris H. Senanayake

  DOI：10.1016/j.tet.2005.03.122

  日期：2005.6

  A simple, general, and practical technology to prepare enantiopure 1,2,3-oxathiazolidine-2-oxide derivatives using chiral aryl N-sulfonyl aminoalcohol derivatives and thionyl chloride is reported. The versatility of these novel chiral building blocks (MIOO and TMPOO), was exemplified by the expedient production of a variety of unique chiral sulfoxides and valuable chiral sulfinamides in excellent yields

  报道了一种使用手性芳基N-磺酰基氨基醇衍生物和亚硫酰氯制备对映体纯的1,2,3-氧杂噻唑烷-2-氧化物衍生物的简单，通用和实用的技术。这些新颖的手性结构单元（MIOO和TMPOO）的多功能性，以简便的方法以优异的收率和对映体纯度生产了各种独特的手性亚砜和有价值的手性亚磺酰胺类产品。