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373729

Sigma-Aldrich

Molybdenum(VI) tetrachloride oxide

97%

Synonym(s):

Molybdenum chloride oxide, Molybdenum oxide chloride, Molybdenum oxytetrachloride, Molybdenum tetrachloride monoxide, Molybdenum(VI) oxychloride, Tetrachlorooxomolybdenum

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About This Item

Linear Formula:
MoOCl4
CAS Number:
13814-75-0
Molecular Weight:
253.75
MDL number:
MFCD00014222
UNSPSC Code:
12161600
PubChem Substance ID:
24863256
NACRES:
NA.22

Quality Level

100

Assay

97%

form

powder or crystals

reaction suitability

reagent type: catalyst
core: molybdenum

storage temp.

2-8°C

SMILES string

Cl[Mo](Cl)(Cl)(Cl)=O

InChI

1S/4ClH.Mo.O/h4*1H;;/q;;;;+4;/p-4

InChI key

UYEGPKGLVUUIGD-UHFFFAOYSA-J

Application

Molybdenum(VI) tetrachloride oxide can be used:
  • To prepare a binary metal catalyst (MoOCl4-n-BuLi) for the living polymerization of various acetylenes.
  • As an oxidant in the aromatization of various Hantzsch-1,4-dihydropyridines.
  • As a molybdenum (Mo) precursor to prepare nafion-Mo composite material, which is used as a catalyst for the preparation of nitrones by reacting primary amines with aldehydes.

Pictograms

Corrosion
GHS05

Signal Word

Danger

Hazard Statements

H314

Hazard Classifications

Skin Corr. 1B

Storage Class Code

8A - Combustible corrosive hazardous materials

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Certificates of Analysis (COA)

Lot/Batch Number
MKCW2975
MKCW5452
MKCT1311
MKCT8815
MKCS4916

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Nafion supported molybdenum oxychloride: Recyclable catalyst for one-pot synthesis of nitrones via direct condensation/oxidation of primary amines and aldehydes using UHP as oxidant
Singh B, et al.
Green Chemistry, 11(12), 1941-1944 (2009)
Living Polymerization of Substituted Acetylenes by a Novel Binary Catalyst, MoOCl4- n-BuLi
Hayano S and Masuda T
Macromolecules, 31(10), 3170-3174 (1998)
Hayano, S. Masuda, T.
Macromolecules, 31, 3170-3170 (1998)
Mladen Litvić et al.
Bioorganic & medicinal chemistry letters, 22(11), 3676-3681 (2012-05-02)
Mo(VI) and Mo(V) salts both react selectively with Hantzsch esters to produce substitute pyridines in good-to-excellent yield (75-99%). The remarkable reactivity and selectivity of MoOCl(4) under reflux of acetonitrile and MoCl(5) in dichloromethane at room temperature encouraged us to propose

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