3,3-diethoxypropanal | 6367-37-9

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: 3,3-diethoxypropanal
• 英文别名: malonic aldehyde diethyl acetal
• CAS: 6367-37-9
• 化学式: C₇H₁₄O₃
• 分子量: 146.186
• InChiKey: WTRPATCGXBMKKJ-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  0.3
• 重原子数：
  10
• 可旋转键数：
  6
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.86
• 拓扑面积：
  35.5
• 氢给体数：
  0
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  3,3-diethoxypropanal 在 titanium(IV) isopropylate 、 叔丁基过氧化氢 、 D-(-)-酒石酸二乙酯 、 sodium hydride 、 二异丁基氢化铝 作用下， 以 正己烷 、 二氯甲烷 为溶剂， 反应 11.0h， 生成 3,4-Anhydro-2-deoxy-D-threo-pentose diethyl acetal
  参考文献：
  名称：

  Asymmetric synthesis of D- and L-2-deoxy-4-thioriboscs

  摘要：

  Both D- and L-enantiomers of 2-deoxy-4-thioribose derivatives 12 and 17 were prepared stereospecifically in 12 steps from 1,3-propanediol. The key intermediary 2,3-epoxy alcohols, 8 and 15 were obtained with high enantiomeric excess by the Sharpless asymmetric epoxidation using (+)-L-diethyl tartrate and (-)-D-diethyl tartrate.

  DOI：

  10.1016/s0957-4166(00)80489-9
• 作为产物：
  描述：

  丙烯醛缩二乙醇 在 sodium hydroxide 、 重铬酸吡啶 、 dimethyl sulfide borane 、 3 A molecular sieve 、 双氧水 作用下， 以 二氯甲烷 为溶剂， 反应 16.0h， 生成 3,3-diethoxypropanal
  参考文献：
  名称：

  Total synthesis of maytansinoids. Approach to 4,6-bisdemethylmaytansine and 4-demethylmaytansine

  摘要：

  A convergent strategy was elaborated to synthesize maytansine 1 and maytansinoids modified on the carbon skeleton, especially 4-demethylmaytansine 2, 6-demethylmaytansine 3, 4,6-bisdemethylmaytansine 4. In this paper, the feasibility of the project was verified by the preparation of key intermediates for the synthesis of 4, 6-bisdemethylmaytansine and 6-demethylmaytansine. The C-1-N open chain compound 18 in the 4,6-bisdemethyl series was obtained.

  DOI：

  10.1016/s0040-4020(01)88513-6

文献信息

• Selective Ring Contraction of 5-Spirocyclopropane Isoxazolidines Mediated by Acids
  作者：Franca M. Cordero、Federica Pisaneschi、Maria Salvati、Valentina Paschetta、Jean Ollivier、Jacques Salaün、Alberto Brandi

  DOI：10.1021/jo034003g

  日期：2003.4.1

  The two-step process, intramolecular 1,3-dipolar cycloaddition/thermal rearrangement under acidic conditions, represents a general synthesis of a new class of 3,4-cis-fused bicyclic azetidin-2-ones starting from easily available compounds such as amino acids, hydroxy acids, and dicarbonyl or amino alcohol derivatives.

  在质子酸存在的情况下，在70-110摄氏度下，热解3,4-顺式环稠合的5-螺环丙烷异恶唑烷16、18-21、33、34、38a和61，产生3,4-顺式环熔融的氮杂环丁烷-2-酮22-26、41、42、46和62，同时伴随着乙烯的挤出，收率很高。到目前为止，收集到的证据强烈支持一种机制，该机制是由质子化的NO键的均质裂解引起的，其将5-螺环丙烷异恶唑烷重排为β-内酰胺。然后，取决于阳离子双自由基中间体的稳定性或立体电子性质，可以遵循一些不同的竞争途径。酸性条件下的分子内1,3-偶极环加成/热重排分为两步过程，代表了3类新化合物的一般合成：
• Catalytic asymmetric conjugate boration of α,β-unsaturated sulfones
  作者：Abraham L. Moure、Ramón Gómez Arrayás、Juan C. Carretero

  DOI：10.1039/c1cc11949d

  日期：——

  The alpha,beta-unsaturated sulfones are suitable activated olefins in catalytic asymmetric conjugate beta-boration. These substrates undergo smooth conjugate addition of bis(pinacolato)diboron [B(2)(pin)(2)] catalyzed by nonracemic Cu(I)-diphosphine complexes to provide, upon subsequent oxidation, beta-hydroxy sulfones in good yields and high enantiocontrol.

  α，β-不饱和砜是催化不对称共轭β-硼酸酯化反应中合适的活化烯烃。这些底物通过非外消旋的Cu（I）-二膦配合物催化双（pinacolato）diboron [B（2）（pin）（2）]的平滑共轭加成，从而在随后的氧化反应中，以高收率和高收率提供β-羟基砜对映体控制。
• Spirocyclopropane Isoxazolidines, Octahydropyrindin-4-ones and β-Lactams with Biomimetic Ethylene Release from the Electrophilic Substitution of a 1,1-Ethyleneallylzinc Complex
  作者：Valentina Paschetta、Franca Cordero、Renée Paugam、Jean Ollivier、Alberto Brandi、Jacques Salaün

  DOI：10.1055/s-2001-16057

  日期：——

  Electrophilic substitution of 1-ethenylcyclopropyl mesylate by 3,3-diethoxypropanal in the presence of palladium(0) (5%) and diethylzinc (2 equivalents) provided 5-cyclopropylidene-1,1-diethoxy-3-hydroxypentane; its nitrone derivatives underwent intramolecular cycloaddition to provide spirocyclopropane isoxazolidines, which then were transformed under thermal or acidic conditions, into octahydropyrindin-4-ones or bicyclic β-lactams with the ethylene phytohormone extrusion, respectively. Use of chiral auxiliaries, i.e. (l)-2-acetoxylactate can lead to enantiomerically enriched heterocycles.

  在钯(0)（5%）和二乙基锌（2当量）的存在下，1-乙烯基环丙基甲磺酸酯的亲电取代反应与3,3-二乙氧基丙醛反应，生成了5-环丙叉基-1,1-二乙氧基-3-羟基戊烷；其氮氧自由基衍生物经历分子内环加成反应，生成了螺环丙烷异噁唑啉，随后在热或酸性条件下转化为八氢吡啶-4-酮或双环β-内酰胺，同时脱去乙烯植物激素。使用手性辅助剂，即(l)-2-乙酰氧基乳酸，可以导致手性富集的杂环化合物。
• Functional-Group-Tolerant, Nickel-Catalyzed Cross-Coupling Reaction for Enantioselective Construction of Tertiary Methyl-Bearing Stereocenters
  作者：Hanna M. Wisniewska、Elizabeth C. Swift、Elizabeth R. Jarvo

  DOI：10.1021/ja4034999

  日期：2013.6.19

  The first Negishi nickel-catalyzed stereospecific cross-coupling reaction of secondary benzylic esters is reported. A series of traceless directing groups is evaluated for ability to promote cross-coupling with dimethylzinc. Esters with a chelating thioether derived from commercially available 2-(methylthio)acetic acid are most effective. The products are formed in high yield and with excellent stereospecificity

  报道了第一个根岸镍催化仲苄酯的立体定向交叉偶联反应。评估了一系列无痕导向基团促进与二甲基锌交叉偶联的能力。由市售的 2-(甲硫基)乙酸衍生的具有螯合硫醚的酯是最有效的。形成的产品收率高，且具有优异的立体定向性。该反应可耐受多种官能团，包括烯烃、炔烃、酯、胺、酰亚胺以及 O-、S- 和 N- 杂环。这种转化的实用性在视黄酸受体激动剂和脂肪酸酰胺水解酶抑制剂的对映选择性合成中得到强调。
• Synthesis of beta-L-2'-deoxy nucleosides
  申请人：Storer Richard

  公开号：US20050059632A1

  公开（公告）日：2005-03-17

  An improved process for the preparation of 2′-modified nucleosides and 2′-deoxy-nucleosides, such as, β-L-2′-deoxy-thymidine (LdT), is provided. In particular, the improved process is directed to the synthesis of a 2′-deoxynucleoside that may utilize different starting materials but that proceeds via a chloro-sugar intermediate or via a 2,2′-anhydro-1-furanosyl-nucleobase intermediate. Where an 2,2′-anhydro- 1 -furanosyl base intermediate is utilized, a reducing agent, such as Red-Al, and a sequestering agent, such as 15-crown-5 ether, that cause an intramolecular displacement reaction and formation of the desired nucleoside product in good yields are employed. An alternative process of the present invention utilizes a 2,2′-anhydro-1-furanosyl base intermediate without a sequestering agent to afford 2′-deoxynucleosides in good yields. The compounds made according to the present invention may be used as intermediates in the preparation of other nucleoside analogues, or may be used directly as antiviral and/or antineoplastic agents.

  提供了一种改进的2'-改性核苷和2'-脱氧核苷的制备工艺，例如，β-L-2'-脱氧胸苷（LdT）。特别是，改进的工艺针对的是2'-脱氧核苷的合成，该合成可能使用不同的起始材料，但都通过氯糖中间体或通过2,2'-脱水-1-呋喃糖核苷中间体进行。当使用2,2'-脱水-1-呋喃糖碱基中间体时，会采用还原剂（如Red-Al）和隔离剂（如15-冠-5醚），它们能引起分子内位移反应，并形成所需核苷产品的高收率。本发明的一种替代工艺使用2,2'-脱水-1-呋喃糖碱基中间体而不使用隔离剂，也能以高收率获得2'-脱氧核苷。根据本发明制成的化合物可以作为制备其他核苷类似物的中间体，或者可以直接用作抗病毒和/或抗肿瘤剂。