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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

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

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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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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