1-(3-methyloxiran-2-yl)ethanol | 79702-78-6

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: 1-(3-methyloxiran-2-yl)ethanol
• 英文别名: (1S)-1-[(2S,3R)-3-methyloxiran-2-yl]ethanol
• CAS: 79702-78-6
• 化学式: C₅H₁₀O₂
• 分子量: 102.133
• InChiKey: FHIKGRJBSRFOJT-LMVFSUKVSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  0.1
• 重原子数：
  7
• 可旋转键数：
  1
• 环数：
  1.0
• sp3杂化的碳原子比例：
  1.0
• 拓扑面积：
  32.8
• 氢给体数：
  1
• 氢受体数：
  2

反应信息

• 作为产物：
  描述：

  (Z)-pent-3-en-2-ol 在 alumosilicate Ti-ITQ-2 叔丁基过氧化氢 作用下， 以 氘代氯仿 为溶剂， 反应 24.0h， 生成 (2α(S*),3α)-(+/-)-α,3-Dimethyloxiranemethanol 、 1-(3-methyloxiran-2-yl)ethanol
  参考文献：
  名称：

  钛催化的硅烷，手性烯丙基醇，3-烷基环己烷和噻吩5-氧化物的多相氧化：大孔沸石Ti-β，介孔Ti-MCM-41和层状沸石的反应性和选择性的比较硅铝酸盐Ti-ITQ-2

  摘要：

  用氧化剂Ti-β/ H 2 O 2，Ti-MCM-41 / t -BuOOH和Ti-ITQ-2 / t -BuOOH对硅烷氧化，烯烃环氧化和噻吨5氧化物硫氧化的比较研究提供了催化反应顺序为Ti-β> Ti-MCM-41> Ti-ITQ-2。狭窄通道的空间限制使Ti-β沸石具有最高的选择性。对于Ti-MCM-41和Ti-ITQ-2主体的更开放的结构，这种空间约束不太明显，因此，这些多相催化剂显示出较低的选择性。两者均通过类似于均相Ti（O i -Pr）4 / t的过渡结构激活t -BuOOH进行氧转移-BuOOH氧化剂。

  DOI：

  10.1006/jcat.2000.3043

文献信息

• A Highly Chemoselective, Diastereoselective, and Regioselective Epoxidation of Chiral Allylic Alcohols with Hydrogen Peroxide, Catalyzed by Sandwich-Type Polyoxometalates:  Enhancement of Reactivity and Control of Selectivity by the Hydroxy Group through Metal−Alcoholate Bonding
  作者：Waldemar Adam、Paul L. Alsters、Ronny Neumann、Chantu R. Saha-Möller、Dorit Sloboda-Rozner、Rui Zhang

  DOI：10.1021/jo0266386

  日期：2003.3.1

  Sandwich-type polyoxometalates (POMs), namely [WZnM2(ZnW9O34)2]q- [M = Mn(II), Ru(III), Fe(III), Pd(II), Pt(II), Zn(II); q = 10-12], are shown to catalyze selectively the epoxidation of chiral allylic alcohols with 30% hydrogen peroxide under mild conditions (ca. 20 degrees C) in an aqueous/organic biphasic system. The transition metals M in the central ring of polyoxometalate do not affect the reactivity

  三明治型多金属氧酸盐（POM），即[WZnM2（ZnW9O34）2] q- [M = Mn（II），Ru（III），Fe（III），Pd（II），Pt（II），Zn（II） ; q = 10-12]，表明在温和条件下（约20摄氏度）在水/有机双相体系中，用30％过氧化氢选择性催化手性烯丙醇的环氧化。多金属氧酸盐中心环中的过渡金属M不影响过氧化氢使烯丙醇环氧化的反应性，化学选择性或立体选择性。对于空洞的Keggin POM [PW11O39] 7-，可以观察到相似的选择性，尽管产物收率明显降低，其中过氧钨酸盐络合物已被证明是活性氧化物质。所有这些特征都支持钨过氧配合物，而不是高价过渡金属氧物种作为三明治型POM催化环氧化的关键中间体。通过乙酰化或甲基化将羟基官能团封端时，这些POM未观察到这些羟基保护的底物[1a（Ac）和1a（Me）]的反应性。提出了一种模板来说明反应性和选择性的显着提高，
• Regio- and Diastereoselective Catalytic Epoxidation of Acyclic Allylic Alcohols with Methyltrioxorhenium:  A Mechanistic Comparison with Metal (Peroxy and Peroxo Complexes) and Nonmetal (Peracids and Dioxirane) Oxidants
  作者：Waldemar Adam、Catherine M. Mitchell、Chantu R. Saha-Möller

  DOI：10.1021/jo9902289

  日期：1999.5.1

  Geraniol and its 1-methyl derivative (regiochemical probes) and a set of methyl- and tert-butyl-substituted chiral allylic alcohols (stereochemical probes) have been used to elucidate the mechanism of the MTO-catalyzed epoxidation of allylic alcohols. The regiochemical probes are preferentially epoxidized at the unfunctionalized double bond by these MTO-based oxidants, which establishes that MTO/UHP

  香叶醇及其1-甲基衍生物（区域化学探针）和一组甲基和叔丁基取代的手性烯丙基醇（立体化学探针）已用于阐明MTO催化的烯丙基醇环氧化的机理。区域化学探针优先通过这些基于MTO的氧化剂在未官能化的双键上环氧化，从而确定MTO / UHP和MTO / H（2）O（2）/吡啶主要通过氢键起作用。与过渡金属氧化剂VO（acac）（2）/ t-BuOOH，Mo（CO）（6）/ t-BuOOH，MoO（2）[PhCON（Ph ）O]（2）/ t-BuOOH，MoO（O（2））[PhCON（Ph）O]（2）和H（2）WO（4）/ H（2）O（2）。对于立体化学探针，非对映选择性数据显示MTO催化系统（MTO / UHP和MTO / H（2）O（2）/吡啶）与过水合物型氧化剂Ti-beta / H（2）O（2）和过酸m-CPBA。通过1，3-烯丙基应变的构象控制导致高的苏非对映选择性，其中羟基官能度和and催
• Effect of Additives on Chemoselectivity and Diastereoselectivity in the Catalytic Epoxidation of Chiral Allylic Alcohols with Hydrogen Peroxide and Binuclear Manganese Complexes
  作者：Hamdullah Kilic、Waldemar Adam、Paul L. Alsters

  DOI：10.1021/jo801974e

  日期：2009.2.6

  chiral allylic alcohols 2 by manganese complexes of the cyclic triamine 1,4,7-trimethyl-1,4,7-triazacyclononane (tmtacn) 1 and hydrogen peroxide as oxygen donor in the presence of co-catalyst are investigated to understand the factors that affect the catalyst selectivity. Chemoselectivity and diastereoselectivity of catalyst 1 are significantly affected by the structure of the allylic alcohol and the

  研究了在助催化剂存在下，环状三胺1,4,7-三甲基-1,4,7-三氮杂环壬烷（tmtacn）1和过氧化氢作为氧供体的锰配合物对手性烯丙基醇2的催化氧化，了解影响催化剂选择性的因素。烯丙醇的结构以及助催化剂的性质和量显着影响催化剂1的化学选择性和非对映选择性。H 2 O 2的添加摩尔当量（相对于基材为20-110 mol％）的影响更为明显。我们目前的结果反映了Mn催化剂1 / H 2的复杂氧化还原化学反应O 2 /助催化剂体系在烯烃氧化的早期阶段。
• Regio-, Diastereo-, and Chemoselectivities in the Dioxirane Oxidation of Acyclic and Cyclic Allylic Alcohols by Methyl(trifluoromethyl)dioxirane (TFD): A Comparison with Dimethyldioxirane
  作者：Waldemar Adam、Rodrigo Paredes、Alexander K. Smerz、L. Angela Valoza

  DOI：10.1002/(sici)1099-0690(199802)1998:2<349::aid-ejoc349>3.0.co;2-r

  日期：1998.2

  regioselectivity of the geraniol epoxidation by methyl(trifluoromethyl)dioxirane (TFD) reveals that as for the less reactive dimethyldioxirane (DMD), hydrogen bonding stabilizes the transition state of the epoxidation. In protic media, the hydrogen bonding is exerted intermolecularly by the solvent, whereas in unpolar, non-hydrogen-bonding solvents intramolecular assistance through the adjacent hydroxy

  甲基（三氟甲基）二环氧乙烷（TFD）对香叶醇环氧化的区域选择性的溶剂依赖性变化表明，对于反应性较低的二甲基二环氧乙烷（DMD），氢键稳定了环氧化的过渡态。在质子介质中，氢键由溶剂在分子间施加，而在非极性，非氢键的溶剂中，通过相邻羟基官能团的分子内辅助起作用，并且有利于对烯丙基醇部分的攻击。对于手性烯丙基醇，另外的空间相互作用在构象固定的过渡态中控制π-面选择性。与DMD相似，TFD环氧化的氢键过渡态中的优选二面角约为130°，此处研究的1和3-5被TFD化学选择性环氧化而未形成相应的烯酮。
• Solvent Effects in the Regio- and Diastereoselective Epoxidations of Acyclic Allylic Alcohols by Dimethyldioxirane:  Hydrogen Bonding as Evidence for a Dipolar Transition State
  作者：Waldemar Adam、Alexander K. Smerz

  DOI：10.1021/jo951984r

  日期：1996.1.1

  A mechanistically significant solvent effect is observed in the regioselectivity of the geraniol epoxidation by dimethyldioxirane. In hydrogen-bonding solvents (MeOH), the 6,7-epoxide is preferred over the 2,3-epoxide (74:26), which reveals that the more nucleophilic 6,7 double bond (the 2,3 double bond is inductively deactivated by the allylic hydroxy group) is preferentially attacked by the electrophilic dimethyldioxirane. In MeOH, both regioisomeric dipolar transition states are equally well stabilized by interaction through intermolecular hydrogen bonding with solvent molecules. In the nonpolar CCl4, intramolecular hydrogen bonding with the allylic hydroxy functionality favors attack at the 2,3 double bond and proportionally more 2,3-epoxide is formed. Similarly, also the pi-facial selectivity in the dimethyldioxirane epoxidation of methyl-substituted chiral acyclic allylic alcohols is controlled by intermolecular versus intramolecular hydrogen bonding. Thus, higher three selectivities are obtained in the nonpolar CCl4 by stabilization of the diastereomeric transition state with minimal allylic strain through intramolecular hydrogen bonding with the allylic hydroxy group. The geometry of the dipolar transition state for the dimethyldioxirane epoxidations is similar to that of m-CPBA, but with apparently a slightly larger (ca. 130 degrees) dihedral angle alpha to relieve 1,2-allylic strain.