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20039-37-6 - Pyridinium dichromate, 98% - PDC - L15132 - Alfa Aesar

L15132 Pyridinium dichromate, 98%

Numéro CAS

Dimensions Prix ($) Quantité Disponibilité
25g 27,00
100g 57,40
500g 182,00
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Pyridinium dichromate, 98%


Propriétés chimiques

Poids formulaire
Point de fusion
ca 145-147°
Soluble in water, dimethyl formamide, dimethyl sulfoxide and acetonitrile. Slightly soluble in dichloromethane, chloroform and acetone. Insoluble in hexane, ether and ethyl acetate.


Pyridinium dichromate acts as a strong oxidizing agent used in the conversion of primary alcohols and secondary alcohols to aldehydes and ketones respectively. It plays an important role in the oxidation of unsaturated tertiary alcohols, silyl ethers, the carbon-boron bond, and oximes. Further, it is used in the conversion of acetals to esters and didehydroketones to enones in the presence of tert-butyl hydroperoxide.


Hygroscopic. Incompatible withorganic materials and powdered metals.

Références bibliographiques

Selective oxidant which can be used in dichloromethane to convert primary alcohols to aldehydes: Tetrahedron Lett., 399 (1979). Can also be used catalytically in combination with Sodium percarbonate, A16045, as co-oxidant for conversion of allylic and benzylic alcohols to aldehydes under phase-transfer conditions: Tetrahedron Lett., 35, 1989 (1994). Under the same conditions, ɑ-functionalized benzylic alcohols undergo oxidative cleavage: Synth. Commun., 25, 2051 (1995).

Matsunaga, K.; Hirajima, H.; Kishida, A.; Takatori, K.; Nagaoka, H. Novel PDC catalyzed oxidative rearrangement of tertiary allylic alcohols to beta-substituted enones. Tetrahedron Lett. 2015, 56 (43), 5941-5944.

Ghosh, A.; Saha, R.; Mukherjee, K.; Ghosh, S. K.; Sar, P.; Malik, S.; Saha, B. Choice of suitable micellar catalyst for 2,2'-bipyridine-promoted chromic acid oxidation of glycerol to glyceraldehyde in aqueous media at room temperature. Res. Chem. Intermed. 2015, 41 (5), 3057-3078.

Mentions de danger et de prudence du SGH

Mentions de danger (UE): H272-H314-H317-H351

May intensify fire; oxidizer. Causes severe skin burns and eye damage. May cause an allergic skin reaction. Suspected of causing cancer.

Mentions de prudence: P221-P210v-P260u-P201-P220-P303+P361+P353-P305+P351+P338-P301+P330+P331-P405-P501a

Take any precaution to avoid mixing with combustibles. Obtain special instructions before use. Keep/Store away from clothing/combustible materials. IF ON SKIN (or hair): Remove/Take off immediately all contaminated clothing. Rinse skin with water/shower. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. IF SWALLOWED: Rinse mouth. Do NOT induce vomiting. Store locked up. Dispose of contents/container in accordance with local/regional/national/international regulations.

Autres références

Classe de danger
Groupe d'emballage
Code tarifaire harmonisé


  • A11752

    Pyridinium chlorochromate, 98%
  • A12766

    1,2-Dibromoethane, 99%
  • B21165

    Molecular sieves, 3A, powder
  • B24511

    Tetra-n-propylammonium perruthenate(VII), 98%
  • 43997

    N,N-Dimethylformamide, anhydrous, 99.8%, packaged under Argon in resealable ChemSeal™ bottles

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