甲氧基甲醇
化合物
甲氧基甲醇(英语:Methoxymethanol)化学式CH3OCH2OH,也称为甲醇半缩甲醛(英语:Formaldehyde methyl hemiacetal),是半缩醛,分子中带有一个醚键和一个羟基[1],可在太空中发现[2]。
甲氧基甲醇 | |
---|---|
IUPAC名 Methoxymethanol | |
别名 | Formaldehyde methyl hemiacetal |
识别 | |
CAS号 | 4461-52-3 |
PubChem | 62540 |
ChemSpider | 56311 |
SMILES |
|
Beilstein | 1900186 |
ChEBI | 46791 |
性质 | |
化学式 | C2H6O2 |
摩尔质量 | 62.07 g·mol−1 |
密度 | 0.948 |
危险性 | |
GHS危险性符号 | |
GHS提示词 | Warning |
H-术语 | H226, H302, H371 |
P-术语 | P210, P233, P240, P241, P242, P243, P260, P264, P270, P280, P301+312, P303+361+353, P309+311, P330 |
若非注明,所有数据均出自标准状态(25 ℃,100 kPa)下。 |
形成
编辑当甲醛和甲醇在水溶液中或直接混合时,甲氧基甲醇会自发形成[3][1][4]。
在太空中,甲醇自由基(CH2OH 或 CH3O)相互碰撞形成甲氧基甲醇,这些自由基本身可能是紫外线或宇宙射线产生的辐解产物[3]。
参考文献
编辑- ^ 1.0 1.1 Maiwald, Michael; Fischer, Holger H.; Ott, Michael; Peschla, Roger; Kuhnert, Christian; Kreiter, Cornelius G.; Maurer, Gerd; Hasse, Hans. Quantitative NMR Spectroscopy of Complex Liquid Mixtures: Methods and Results for Chemical Equilibria in Formaldehyde−Water−Methanol at Temperatures up to 383 K. Industrial & Engineering Chemistry Research. January 2003, 42 (2): 259–266. doi:10.1021/ie0203072.
- ^ McGuire, Brett A.; Shingledecker, Christopher N.; Willis, Eric R.; Burkhardt, Andrew M.; El-Abd, Samer; Motiyenko, Roman A.; Brogan, Crystal L.; Hunter, Todd R.; Margulès, Laurent; Guillemin, Jean-Claude; Garrod, Robin T.; Herbst, Eric; Remijan, Anthony J. ALMA Detection of Interstellar Methoxymethanol (CH3OCH2OH). The Astrophysical Journal. 2017, 851 (2): L46. Bibcode:2017ApJ...851L..46M. arXiv:1712.03256 . doi:10.3847/2041-8213/aaa0c3 (英语).
- ^ 3.0 3.1 Hays, Brian M.; Widicus Weaver, Susanna L. Theoretical Examination of O(1D) Insertion Reactions to Form Methanediol, Methoxymethanol, and Aminomethanol. The Journal of Physical Chemistry A. 6 May 2013, 117 (32): 7142–7148. Bibcode:2013JPCA..117.7142H. doi:10.1021/jp400753r.
- ^ Celik, Fuat E.; Lawrence, Henry; Bell, Alexis T. Synthesis of precursors to ethylene glycol from formaldehyde and methyl formate catalyzed by heteropoly acids. Journal of Molecular Catalysis A: Chemical. June 2008, 288 (1–2): 87–96. doi:10.1016/j.molcata.2008.03.029.