3-乙酰氧基-2-(乙酰氧基甲基)-2-甲基丙酸 | 17872-58-1

• 分子结构分类: 有机化合物 - 有机酸及其衍生物 - 羧酸及其衍生物
• 中文名称: 3-乙酰氧基-2-(乙酰氧基甲基)-2-甲基丙酸
• 英文名称: 2,2-bis(acetoxymethyl)propionic acid
• 英文别名: 3-acetyloxy-2-(acetyloxymethyl)-2-methylpropanoic acid
• CAS: 17872-58-1
• 化学式: C₉H₁₄O₆
• 分子量: 218.207
• InChiKey: OQZAEPCZSVMOSK-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  -0.1
• 重原子数：
  15
• 可旋转键数：
  7
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.67
• 拓扑面积：
  89.9
• 氢给体数：
  1
• 氢受体数：
  6

安全信息

• 海关编码：
  2918990090

反应信息

• 作为反应物：
  描述：

  3-乙酰氧基-2-(乙酰氧基甲基)-2-甲基丙酸 在 palladium on activated charcoal 4-二甲氨基吡啶 、 草酰氯 、 氢气 、 三乙胺 、 N,N-二甲基甲酰胺 作用下， 以 二氯甲烷 、 乙酸乙酯 为溶剂， 反应 2.0h， 生成 3-(3-Acetoxy-2-acetoxymethyl-2-methyl-propionyloxy)-2-(3-acetoxy-2-acetoxymethyl-2-methyl-propionyloxymethyl)-2-methyl-propionic acid
  参考文献：
  名称：

  Synthesis, Characterization, and ¹H NMR Self-Diffusion Studies of Dendritic Aliphatic Polyesters Based on 2,2-Bis(hydroxymethyl)propionic Acid and 1,1,1-Tris(hydroxyphenyl)ethane

  摘要：

  Dendritic aliphatic polyesters of one, two, three, and four generations (M(w): 906, 1856, 3754, and 7549 g/mol) were synthesized in the convergent fashion, using 2,2-bis(hydroxymethyl)propionic acid as building block and 1,1,1-tris(hydroxyphenyl)ethane as core molecule. Dendrons of one to four generations were synthesized from the building block and in a final step coupled to the core molecule. The focal point of the dendrons was protected by a benzyl ester group and deprotected by catalytic hydrogenolysis. The esterifications were performed by conversion of the acid into the corresponding acid chloride and followed by reaction of the acid chloride with the hydroxyl groups in the presence of triethylamine and dimethylaminopyridine. The simplicity of the H-1-NMR and C-13-NMR spectras and elemental analyses suggest that pure and monodisperse dendrimers were obtained. Molecular selfdiffusion studies of first, second, third, and fourth generation dendrimers were performed, in chloroform, using pulsed-field spin echo H-1 NMR spectroscopy. The self-diffusion coefficients were calculated with the standard form of the Stejskal-Tanner equation. The effective radii of the dendrimers were estimated from the diffusion coefficients by assuming a spherical geometry for all dendrimers. The radii obtained were 7.8, 10.3, 12.6, and 17.1 Angstrom for the first, second, third, and fourth generation dendrimer, respectively.

  DOI：

  10.1021/ja954171t
• 作为产物：
  描述：

  2,2-二羟甲基丙酸 、 乙酰氯 在 4-二甲氨基吡啶 、 三乙胺 作用下， 以 二氯甲烷 为溶剂， 反应 0.5h， 以98%的产率得到3-乙酰氧基-2-(乙酰氧基甲基)-2-甲基丙酸
  参考文献：
  名称：

  Synthesis, Characterization, and ¹H NMR Self-Diffusion Studies of Dendritic Aliphatic Polyesters Based on 2,2-Bis(hydroxymethyl)propionic Acid and 1,1,1-Tris(hydroxyphenyl)ethane

  摘要：

  Dendritic aliphatic polyesters of one, two, three, and four generations (M(w): 906, 1856, 3754, and 7549 g/mol) were synthesized in the convergent fashion, using 2,2-bis(hydroxymethyl)propionic acid as building block and 1,1,1-tris(hydroxyphenyl)ethane as core molecule. Dendrons of one to four generations were synthesized from the building block and in a final step coupled to the core molecule. The focal point of the dendrons was protected by a benzyl ester group and deprotected by catalytic hydrogenolysis. The esterifications were performed by conversion of the acid into the corresponding acid chloride and followed by reaction of the acid chloride with the hydroxyl groups in the presence of triethylamine and dimethylaminopyridine. The simplicity of the H-1-NMR and C-13-NMR spectras and elemental analyses suggest that pure and monodisperse dendrimers were obtained. Molecular selfdiffusion studies of first, second, third, and fourth generation dendrimers were performed, in chloroform, using pulsed-field spin echo H-1 NMR spectroscopy. The self-diffusion coefficients were calculated with the standard form of the Stejskal-Tanner equation. The effective radii of the dendrimers were estimated from the diffusion coefficients by assuming a spherical geometry for all dendrimers. The radii obtained were 7.8, 10.3, 12.6, and 17.1 Angstrom for the first, second, third, and fourth generation dendrimer, respectively.

  DOI：

  10.1021/ja954171t

文献信息

• NOVEL NITROSO COMPOUNDS AS NITROXYL DONORS AND METHODS OF USE THEREOF
  申请人：Frost Lisa M.

  公开号：US20090281062A1

  公开（公告）日：2009-11-12

  The invention relates to nitroso derivatives including carboxylic acid and phosphoric acid esters of hydroxy nitroso compounds that donate nitroxyl (HNO) under physiological conditions. The compounds and compositions of the invention are useful in treating and/or preventing the onset and/or development of diseases or conditions that are responsive to nitroxyl therapy, including heart failure, ischemia/reperfusion injury and cancer.

  本发明涉及亚硝基衍生物，包括在生理条件下捐赠亚硝基（HNO）的羟基亚硝基化合物的羧酸和磷酸酯。发明中的化合物和组合物可用于治疗和/或预防对亚硝基疗法有响应的疾病或病症的发作和/或发展，包括心力衰竭、缺血/再灌注损伤和癌症。
• Silver-Catalyzed Decarboxylative Bromination of Aliphatic Carboxylic Acids
  作者：Xinqiang Tan、Tao Song、Zhentao Wang、He Chen、Lei Cui、Chaozhong Li

  DOI：10.1021/acs.orglett.7b00439

  日期：2017.4.7

  The silver-catalyzed Hunsdiecker bromination of aliphatic carboxylic acids is described. With Ag(Phen)2OTf as the catalyst and dibromoisocyanuric acid as the brominating agent, various aliphatic carboxylic acids underwent decarboxylative bromination to provide the corresponding alkyl bromides under mild conditions. This method not only is efficient and general but also enjoys wide functional group

  描述了银催化的脂肪族羧酸的Hunsdiecker溴化。以Ag（Phen）2 OTf为催化剂，二溴异氰尿酸为溴化剂，各种脂肪族羧酸经过脱羧溴化，在温和条件下提供相应的烷基溴化物。该方法不仅高效通用，而且具有广泛的功能组兼容性。提出了涉及Ag（II）中间体的氧化自由基机理。
• Silver-Catalyzed Decarboxylative Fluorination of Aliphatic Carboxylic Acids in Aqueous Solution
  作者：Feng Yin、Zhentao Wang、Zhaodong Li、Chaozhong Li

  DOI：10.1021/ja3048255

  日期：2012.6.27

  industries, general and site-specific C(sp(3))-F bond formations are still a challenging task. We report here that with the catalysis of AgNO(3), various aliphatic carboxylic acids undergo efficient decarboxylative fluorination with SELECTFLUOR(®) reagent in aqueous solution, leading to the synthesis of the corresponding alkyl fluorides in satisfactory yields under mild conditions. This radical fluorination

  尽管氟化化合物已在化学和材料行业中得到广泛应用，但一般和特定于站点的 C(sp(3))-F 键的形成仍然是一项具有挑战性的任务。我们在此报告，在 AgNO(3) 的催化作用下，各种脂肪族羧酸在水溶液中使用 SELECTFLUOR(®) 试剂进行有效的脱羧氟化，从而在温和条件下以令人满意的产率合成相应的烷基氟化物。这种自由基氟化方法不仅高效通用，而且具有化学选择性和官能团相容性，因此在氟化分子的合成中具有很高的实用性。对于这种催化氟脱羧，提出了一种涉及 Ag(III) 介导的单电子转移，然后是氟原子转移的机制。
• A General Approach to Quaternary Center Construction from Couplings of Unactivated Alkenes and Acyl Xanthates
  作者：Ernest N. Jenkins、William L. Czaplyski、Erik J. Alexanian

  DOI：10.1021/acs.orglett.7b00882

  日期：2017.5.5

  to quaternary center construction using unactivated alkenes as coupling partners is reported. In this strategy, acyl xanthates, readily accessed from carboxylic acids, serve as precursors to tertiary radicals. This strategy leverages the unique reactivity of xanthates to participate in efficient radical-mediated additions to unactivated alkenes, expanding the scope of quaternary center construction

  据报道，使用未活化的烯烃作为偶合伙伴的，由自由基介导的四元中心构建的一般方法。在这种策略中，容易从羧酸中获得的酰基黄药作为叔自由基的前体。该策略利用了黄药的独特反应性，以有效地将自由基介导的加成物加到未活化的烯烃中，从而扩大了季铵盐中心的建设范围。
• Silver-Catalyzed Decarboxylative Allylation of Aliphatic Carboxylic Acids in Aqueous Solution
  作者：Lei Cui、He Chen、Chao Liu、Chaozhong Li

  DOI：10.1021/acs.orglett.6b00802

  日期：2016.5.6

  Direct decarboxylative radical allylation of aliphatic carboxylic acids is described. With K2S2O8 as the oxidant and AgNO3 as the catalyst, the reactions of aliphatic carboxylic acids with allyl sulfones in aqueous CH3CN solution gave the corresponding alkenes in satisfactory yields under mild conditions. This site-specific allylation method is applicable to all primary, secondary, and tertiary alkyl

  描述了脂肪族羧酸的直接脱羧自由基烯丙基化。以K 2 S 2 O 8为氧化剂，AgNO 3为催化剂，脂肪族羧酸与烯丙基砜在CH 3 CN水溶液中的反应在温和条件下以令人满意的收率得到了相应的烯烃。此位点特定的烯丙基化方法适用于所有伯，仲和叔烷基酸，并具有广泛的官能团相容性。