甲氧基甲醇(英語:Methoxymethanol)化學式CH3OCH2OH,也稱為甲醇半縮甲醛(英語:Formaldehyde methyl hemiacetal),是半縮醛,分子中帶有一個醚鍵和一個羥基[1],可在太空中發現[2]。
Quick Facts 甲氧基甲醇, 識別 ...
甲氧基甲醇
|
|
IUPAC名 Methoxymethanol
|
別名
|
Formaldehyde methyl hemiacetal
|
識別
|
CAS號
|
4461-52-3
|
PubChem
|
62540
|
ChemSpider
|
56311
|
SMILES
|
|
Beilstein
|
1900186
|
ChEBI
|
46791
|
性質
|
化學式
|
C2H6O2
|
摩爾質量
|
62.07 g·mol−1
|
密度
|
0.948
|
危險性
|
GHS危險性符號
|
GHS提示詞
|
Warning
|
H-術語
|
H226, H302, H371
|
P-術語
|
P210, P233, P240, P241, P242, P243, P260, P264, P270, P280, P301+312, P303+361+353, P309+311, P330
|
若非註明,所有數據均出自標準狀態(25 ℃,100 kPa)下。
|
Close
當甲醛和甲醇在水溶液中或直接混合時,甲氧基甲醇會自發形成[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,這些自由基本身可能是紫外線或宇宙射線產生的輻解產物[3]。
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 (英語).
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.