methyl 2-hydroxy-2-(thiophen-2-yl)acetate

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 杂芳族化合物
• 英文名称: methyl 2-hydroxy-2-(thiophen-2-yl)acetate
• 英文别名: Methyl thien-2-yl-hydroxyacetate；methyl 2-hydroxy-2-thiophen-2-ylacetate
• 化学式: C₇H₈O₃S
• 分子量: 172.205
• InChiKey: JVILUIPLJQOKFK-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  0.9
• 重原子数：
  11
• 可旋转键数：
  3
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.29
• 拓扑面积：
  74.8
• 氢给体数：
  1
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  methyl 2-hydroxy-2-(thiophen-2-yl)acetate 在 氢氧化钾 、 氧气 、 三氯一氧化钒 三氯代氧化钒(V) 作用下， 以 乙醇 、 水 、 乙腈 为溶剂， 生成 2-噻吩乙醛酸
  参考文献：
  名称：

  Asymmetric Aerobic Oxidation of α-Hydroxy Acid Derivatives by C₄-Symmetric, Vanadate-Centered, Tetrakisvanadyl(V) Clusters Derived from N-Salicylidene-α-aminocarboxylates

  摘要：

  A series of chiral vanadyl(V) methoxides bearing 3-t-butyl-5-substituted N-salicylene-L-valinate and L-t-leucinate as chiral auxiliaries has been prepared. In all cases except the 3,5-di-t-butyl analogue, they exist as monomers both in solution and in the single crystal state. In the case of the 3,5-di-t-butyl analogue, the architectural nature of the vanadyl(V) complex highly depends on the base used during the complex formation event. A pentanuclear C-4-symmetric complex was formed when potassium salts were employed instead of the corresponding sodium salts. A central vanadate(V) unit serves to grip four identical chiral monomeric vanadyl(V) units together, by which a potassium ion sits on top of the four flanking units through carbonyl coordinations and serves to hold the whole cluster by cooperation with the central vanadate(V) unit. In comparison with the corresponding monomeric vanadyl(V) methoxide complex, the cluster complex was utilized to facilitate the asymmetric aerobic oxidations of various racemic alpha-hydroxyesters, -amides, and -thioesters with excellent selectivity factors (k(rel) 40 to >500).

  DOI：

  10.1021/jo070575f
• 作为产物：
  描述：

  阿地杂质1 在 sodium tetrahydroborate 、 cerium(III) chloride heptahydrate 作用下， 以 甲醇 为溶剂， 反应 0.17h， 生成 methyl 2-hydroxy-2-(thiophen-2-yl)acetate
  参考文献：
  名称：

  用基于手性 BINOL 的醇盐对烯丙醇的动力学拆分：实验和理论研究的结合

  摘要：

  该研究描述了使用手性 BINOL 衍生物基醇盐作为双功能 Brønsted 碱催化剂通过不对称异构化对烯丙醇进行对映选择性催化动力学拆分的开发和表征。合成了许多基于手性 BINOL 衍生物的醇盐，它们在不对称异构化中的结构-对映选择性相关性研究确定了一种有前途的手性 Brønsted 碱催化剂，它提供了各种手性仲烯丙醇（ee 高达 99%，S 因子高达 >200 ）。在机理研究中，醇盐物种被确定为活性物种，而 BINOL 的酚基通过手性 Brønsted 碱催化剂和底物之间的氢键极大地影响了高反应性和对映选择性。该策略是第一个通过对映选择性无过渡金属碱催化异构化成功合成各种手性仲烯丙醇的策略。生物活性天然产物 (+)-veraguensin 的合成证明了该策略的适用性。

  DOI：

  10.1021/jacs.8b12796

文献信息

• Carboxylation with CO₂ via Brook Rearrangement: Preparation of α-Hydroxy Acid Derivatives
  作者：Tsuyoshi Mita、Yuki Higuchi、Yoshihiro Sato

  DOI：10.1021/ol403099f

  日期：2014.1.3

  rearrangement. A variety of α-substituents including aryl, alkenyl, and alkyl groups were tolerated to afford α-hydroxy acids in moderate-to-high yields. One-pot synthesis from aldehydes using PhMe2SiLi and CO2 was also possible, providing α-hydroxy acids without the isolation of an α-hydroxy silane.

  在CsF的存在下，通过布鲁克重排在CO 2气氛（1atm）下将多种α-取代的α-甲硅烷氧基硅烷羧化。可以耐受包括芳基，烯基和烷基在内的各种α-取代基，以中等至高收率得到α-羟基酸。也可以使用PhMe 2 SiLi和CO 2从醛进行一锅法合成，无需分离α-羟基硅烷即可提供α-羟基酸。
• Condensation of Vilsmeier Salts, Derived from Tetraalkylureas, with α-Hydroxy Amide Derivatives: One-pot Approach to Synthesize 2-Dialkylamino-2-oxazolin-4-ones
  作者：Bengen Liu、Dongshan Su、Zhonglin Wei、Jungang Cao、Dapeng Liang、Yingjie Lin、Haifeng Duan

  DOI：10.1246/cl.161006

  日期：2017.2.5

  A novel and straightforward synthetic protocol was developed to synthesize 2-dialkylamino-2-oxazolin-4-ones from various Vilsmeier salts and α-hydroxy amides derivatives. Notably, thozalinone (3a), as a mild stimulant in tristimania and anorexic, could be synthesized simply and in a high yield using this methodology.

  本研究开发了一种新颖而简单的合成方法，可从各种维尔斯梅尔盐和α-羟基酰胺衍生物中合成 2-二烷基氨基-2-恶唑啉-4-酮。值得注意的是，噻嗪酮（3a）是一种用于治疗三联症和厌食症的温和兴奋剂，采用这种方法可以简单、高产地合成。
• Herbicidal 2-(oxa or thia
  申请人：Chevron Research Company

  公开号：US04537623A1

  公开（公告）日：1985-08-27

  Herbicidal 2-(oxaheterocycle or thiaheterocycle)-5-amino-3-oxo-4-(substituted-phenyl)-2,3-dihydrofurans and derivatives thereof. The compounds generally exhibit both pre-emergence and post-emergence phytotoxicity and are useful as herbicides and also plant growth regulating agents at low dosages.

  除草剂2-(氧杂杂环或硫杂杂环)-5-氨基-3-氧代-4-(取代苯基)-2,3-二氢呋喃及其衍生物。这些化合物通常表现出前出苗和后出苗的植物毒性，并且在低剂量下可用作除草剂和植物生长调节剂。
• Amides for the treatment of atherosclerosis
  申请人：The Dupont Merck Pharmaceutical Company

  公开号：US05583147A1

  公开（公告）日：1996-12-10

  This invention provides amide compounds as inhibitors of acyl-Coenzyme A: cholesterol O-acyltransferase (ACAT), pharmaceutical compositions containing such compounds, processes for the preparation of such compounds, and the use of such compounds as antihypercholesterolemic and/or antiatherosclerotic agents.

  本发明提供了酰基辅酶A：胆固醇O-酰基转移酶（ACAT）抑制剂的酰胺化合物，含有这种化合物的药物组合物，制备这种化合物的过程以及将这种化合物用作抗高胆固醇和/或抗动脉粥样硬化剂的用途。
• Synthesis of α-Hydroxy and α-Alkoxy Esters Enabled by a Visible-Light-Induced O–H Insertion Reaction of Diazo Compounds
  作者：Chao Yang、Wujiong Xia、Jinrui Bai、Dan Qi、Zhuoheng Song、Bin Li、Lin Guo

  DOI：10.1055/a-1951-2950

  日期：2022.12

  O–H insertion reaction of diazo compounds is reported. This synthetic method, unlike conventional pathways, does not rely on transition metals, Lewis acids, or Brønsted acids; does not use any catalyst; and produces valuable α-hydroxy and α-alkoxy esters in good yields of up to 98%. The protocol exhibits a broad substrate scope and good functional-group tolerance. Notably, a gram-scale synthesis has

  报道了可见光诱导的重氮化合物的 O-H 插入反应。与传统途径不同，这种合成方法不依赖于过渡金属、路易斯酸或布朗斯台德酸；不使用任何催化剂；并以高达 98% 的良好收率生产有价值的 α-羟基和 α-烷氧基酯。该协议具有广泛的底物范围和良好的功能组耐受性。值得注意的是，已经以光化学连续流动模式进行了克级合成。