isopropyl p-chlorobenzenesulfonate | 69564-62-1

• 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: isopropyl p-chlorobenzenesulfonate
• 英文别名: p-Chlorbenzolsulfonsaeure-isopropylester；Benzenesulfonic acid, 4-chloro-, 1-methylethyl ester；propan-2-yl 4-chlorobenzenesulfonate
• CAS: 69564-62-1
• 化学式: C₉H₁₁ClO₃S
• 分子量: 234.704
• InChiKey: QSWUXCJBPTUVQG-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.6
• 重原子数：
  14
• 可旋转键数：
  3
• 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：

  4-(4-硝基苄基)吡啶 、 isopropyl p-chlorobenzenesulfonate 在 phosphate buffer 、 水 作用下， 以 丙酮 为溶剂， 生成 4-Chloro-benzenesulfonate1-isopropyl-4-(4-nitro-benzyl)-pyridinium;
  参考文献：
  名称：

  Studies on chemical carcinogens and mutagens. XXV. Chemoselectivity of alkyl sulfonates toward 4-(p-nitrobenzyl)pyridine (NBP) in phosphate buffer.

  摘要：

  合成了六种烷基磺酸和五种对取代苯磺酸的甲基、乙基和异丙基酯，并评估了它们在含有60%丙酮的磷酸盐缓冲液（pH 6.0）中对4-(对硝基苄基)吡啶（NBP）的烷基化能力。对NBP的化学选择性常数SNBP被定义为用于NBP烷基化的烷基磺酸的摩尔分数与在缓冲介质中水解的剩余烷基化试剂的摩尔分数之比的对数。研究发现，SNBP不仅显著依赖于分子中烷基部分的结构，还明显依赖于离去的磺酸部分的电子性质。讨论了结构与化学选择性之间的关系。

  DOI：

  10.1248/cpb.32.1326
• 作为产物：
  描述：

  2-碘代丙烷 、 4-氯苯磺酸 在 silver(l) oxide 作用下， 生成 isopropyl p-chlorobenzenesulfonate
  参考文献：
  名称：

  Studies on chemical carcinogens and mutagens. XXV. Chemoselectivity of alkyl sulfonates toward 4-(p-nitrobenzyl)pyridine (NBP) in phosphate buffer.

  摘要：

  合成了六种烷基磺酸和五种对取代苯磺酸的甲基、乙基和异丙基酯，并评估了它们在含有60%丙酮的磷酸盐缓冲液（pH 6.0）中对4-(对硝基苄基)吡啶（NBP）的烷基化能力。对NBP的化学选择性常数SNBP被定义为用于NBP烷基化的烷基磺酸的摩尔分数与在缓冲介质中水解的剩余烷基化试剂的摩尔分数之比的对数。研究发现，SNBP不仅显著依赖于分子中烷基部分的结构，还明显依赖于离去的磺酸部分的电子性质。讨论了结构与化学选择性之间的关系。

  DOI：

  10.1248/cpb.32.1326

文献信息

• Iron catalyzed cross coupling reactions of aromatic compounds
  申请人：——

  公开号：US20030220498A1

  公开（公告）日：2003-11-27

  A process for the production of compounds Ar—R 1 by means of a cross-coupling reaction of an organometallic reagent R 1 —M with an aromatic or heteroaromatic substrate Ar—X catalyzed by one or several iron salts or iron complexes as catalysts or pre-catalysts, present homogeneously or heterogeneously in the reaction mixture. This new invention exhibits substantial advantages over established cross coupling methodology using palladium- or nickel complexes as the catalysts. Most notable aspects are the fact that (i) expensive and/or toxic nobel metal catalysts are replaced by cheap, stable, commercially available and toxicologically benign iron salts or iron complexes as the catalysts or pre-catalysts, (ii) commercially attractive aryl chlorides as well as various aryl sulfonates can be used as starting materials, (iii) the reaction can be performed under “ligand-free” conditons, and (iv) the reaction times are usually very short.

  通过使用一种或多种铁盐或铁络合物作为催化剂或前催化剂，在有机金属试剂R1—M与芳香或杂芳底物Ar—X之间进行交叉偶联反应的方法，生产化合物Ar—R1。这一新发明相对于使用钯或镍络合物作为催化剂的传统交叉偶联方法具有显著优势。最值得注意的方面包括：(i) 昂贵和/或有毒的贵金属催化剂被廉价、稳定、商业可获得且毒理学上良性的铁盐或铁络合物替代作为催化剂或前催化剂，(ii) 商业上具吸引力的芳基氯化物以及各种芳基磺酸盐可用作起始材料，(iii) 反应可在“无配体”条件下进行，(iv) 反应时间通常非常短。
• Iron-Catalyzed Cross-Coupling Reactions
  作者：Alois Fürstner、Andreas Leitner、María Méndez、Helga Krause

  DOI：10.1021/ja027190t

  日期：2002.11.1

  and -CF(3) groups are compatible. The method also allows for consecutive cross-coupling processes in one pot, as exemplified by the efficient preparation of compound 12, and has been applied to the first synthesis of the cytotoxic marine natural product montipyridine 8. In contrast to the clean reaction of (hetero)aryl chlorides, the corresponding bromides and iodides are prone to a reduction of their

  简单的铁盐，如 FeCl(n)、Fe(acac)(n) (n = 2,3) 或 salen 络合物 4 被证明是高效、廉价、毒理学无害且环境友好的预催化剂，可用于许多交叉- 烷基或芳基格氏试剂、锌酸盐或有机锰物质与芳基和杂芳基氯化物、三氟甲磺酸盐甚至甲苯磺酸盐的偶联反应。原位制备的正式成分 [Fe(MgX)(2)] 的“无机格氏试剂”可能构成负责催化周转的传播物种，在许多情况下，即使在室温或室温以下，这种转化率也以前所未有的速度发生。由于反应条件异常温和，一系列官能团如酯、醚、腈、磺酸盐、磺酰胺、硫醚、缩醛、炔烃和 -CF(3) 基团是相容的。
• Iron-Catalyzed Cross-Coupling Reactions of Alkyl-Grignard Reagents with Aryl Chlorides, Tosylates, and Triflates
  作者：Alois Fürstner、Andreas Leitner

  DOI：10.1002/1521-3773(20020215)41:4<609::aid-anie609>3.0.co;2-m

  日期：2002.2.15
• Group transfers. 2. Solvolysis of isopropyl arenesulfonates in sulfolane
  作者：Barry M. Jacobson、Edward S. Lewis

  DOI：10.1021/jo00237a047

  日期：1988.1
• Studies on chemical carcinogens and mutagens. XXV. Chemoselectivity of alkyl sulfonates toward 4-(p-nitrobenzyl)pyridine (NBP) in phosphate buffer.
  作者：SHINICHI NINOMIYA、KOHFUKU KOHDA、YUTAKA KAWAZOE

  DOI：10.1248/cpb.32.1326

  日期：——

  Methyl, ethyl, and isopropyl esters of six alkanesulfonic acids and five p-substituted benzenesulfonic acids were synthesized and their alkylating abilities were evaluated in terms of the chemoselectivity toward 4-(p-nitrobenzyl) pyridine (NBP) in phosphate buffer (pH 6.0) containing 60% acetone. The chemoselectivity constant toward NBP, SNBP, was defined as the logarithm of the ratio of the molar fraction of an alkylating sulfonate which is consumed for alkylation of NBP versus the molar fraction of the residual alkylating agent which is hydrolyzed in the buffer medium. It was found that SNBP was not only markedly dependent on the structure of the alkyl moiety of the molecule, but also appreciably dependent on the electronic nature of the leaving sulfonic acid moiety. The structure-chemoselectivity relationship is discussed.

  合成了六种烷基磺酸和五种对取代苯磺酸的甲基、乙基和异丙基酯，并评估了它们在含有60%丙酮的磷酸盐缓冲液（pH 6.0）中对4-(对硝基苄基)吡啶（NBP）的烷基化能力。对NBP的化学选择性常数SNBP被定义为用于NBP烷基化的烷基磺酸的摩尔分数与在缓冲介质中水解的剩余烷基化试剂的摩尔分数之比的对数。研究发现，SNBP不仅显著依赖于分子中烷基部分的结构，还明显依赖于离去的磺酸部分的电子性质。讨论了结构与化学选择性之间的关系。