Cookies disclaimer

I agree Our site saves small pieces of text information (cookies) on your device in order to deliver better content and for statistical purposes. You can disable the usage of cookies by changing the settings of your browser. By browsing our website without changing the browser settings you grant us permission to store that information on your device.

70197-13-6 - Methyltrioxorhenium(VII), 98% - MTO - L18478 - Alfa Aesar

L18478 Methyltrioxorhenium(VII), 98%

CAS Number

Size Price ($) Quantity Availability
100mg 28.40
500mg 105.00
Add to Cart Add to Quote Request View Item

Methyltrioxorhenium(VII), 98%


Chemical Properties

Formula Weight
Melting point
Moisture & Light Sensitive
Soluble in water.


Methyltrioxorhenium(VII) is used as a catalyst for various transformations such as olefin metathesis. It is associated with hydrogen peroxide and used as an oxidizing agent. It is used to prepare acid or ester from the corresponding terminalalkynes. It is a catalytic oxidant used with urea hydrogen peroxide to prepare nitrones. It reacts with 2-methylnaphthalene to get 2-methyl-1,4-naphthoquinone (Vitamin K3). Further, it catalyzes the reaction with aldehydes and diazoketones to get an alkene. In addition to this, it is used as an effective antioxidant under various conditions.


Incompatible with strong oxidizing agents.

Literature References

Useful catalyst, soluble in organic solvents and water, and stable to air and acids: J. Organomet. Chem., 372, 351 (1989). Investigated by Herrmann's group as an alkene metathesis catalyst: Angew. Chem. Int. Ed., 30, 1636 (1991), a catalyst for clean epoxidation of alkenes with H2O2: Angew. Chem. Int. Ed., 30, 1638 (1991), and to promote the olefination of aldehydes with diazo esters: Angew. Chem. Int. Ed., 30, 1641 (1991). The activation of H2O2 in epoxidation and other reactions has been extensively studied; feature article: Chem. Commun., 479 (1999). Improved results in epoxidations with H2O2 in the presence of pyrazole have been reported by Herrmann: J. Organomet. Chem., 555, 293 (1998), and by Sharpless with pyrazole, pyridine or 3-cyanopyridine: Tetrahedron Lett., 40, 3991 (1999); J. Org. Chem., 65, 8651 (2000); see also Tetrahedron Lett., 39, 8521 (1998). For use in the Baeyer-Villiger oxidation of ketones, see: Angew. Chem. Int. Ed., 37, 1198 (1998); the reaction can also be carried out with H2O2 in ionic liquids at room temperature: Tetrahedron Lett., 44, 8991 (2003). Catalyzes the oxidative cleavage of ɑ-hydroxy carbonyl compounds to carboxylic acids with H2O2: Synth. Commun., 33, 3875 (2003). High yield aerobic oxidation of various organonitrogen compounds has been described: e.g. pyridines to N-oxides, anilines to nitrobenzenes and sec-amines to nitrones: Tetrahedron Lett., 44, 3235 (2003).

For a brief feature on uses in synthesis, see: Synlett, 1849 (2004).

Hou, J.; Chen, Y.; Ma, D.; Cordes, B.; Wang, J.; Wang, X.; Kühn, F. E.; Guo, H.; Zhou, M. Methyltrioxorhenium-catalyzed highly selective dihydroxylation of 1,2-allenylic diphenyl phosphine oxides. Chem. Commun. 2015, 51 (35), 7439-7442.

Goldsmith, B. R.; Hwang, T.; Seritan, S.; Peters, B.; Scott, S. L. Rate-Enhancing Roles of Water Molecules in Methyltrioxorhenium-Catalyzed Olefin Epoxidation by Hydrogen Peroxide. J. Am. Chem. Soc. 2015, 137 (30), 9604-9616.

GHS Hazard and Precautionary Statements

Hazard Statements: H272

May intensify fire; oxidizer.

Precautionary Statements: P260-P201-P280a-P304+P340-P405-P501a

Do not breathe dust/fume/gas/mist/vapours/spray. Obtain special instructions before use. Wear protective gloves and eye/face protection. IF INHALED: Remove to fresh air and keep at rest in a position comfortable for breathing. Store locked up. Dispose of contents/container in accordance with local/regional/national/international regulations.

Other References

Hazard Class
Packing Group
Harmonized Tariff Code


  • A11988

    N,N-Dimethyl-p-toluidine, 99%
  • A16004

    2-Chloro-5-(trifluoromethyl)aniline, 97%
  • A16006

    cis-Aconitic anhydride, 98%
  • L13940

    Urea hydrogen peroxide adduct, 97%
  • H61758

    Methyl trifluoromethanesulfonate, 97%

Recently Viewed


Life Science

Metals & Materials


Analytical & Labware