MilliporeSigma
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763772

Sigma-Aldrich

Perchloric acid, silica supported

extent of labeling: 0.35 mmol/g

EC Number:
NACRES:
NA.22

form

powder

Quality Level

extent of labeling

0.35 mmol/g

mp

>400 °C

Application

Perchloric acid, silica-supported (HClO4-SiO2) can be used as a catalyst for:
  • The preparation of amidoalkyl naphthols by the condensation reaction of 2-naphthol, aromatic aldehydes, and acetonitrile.
[78]
  • The Friedlander quinoline synthesis by the condensation reaction of 2-aminoaryl ketones and carbonyl compounds.
  • [79]
  • The synthesis of aryl or alkyl-dibenzo xanthenes by the condensation reaction between aldehyde and 2-naphthol.
  • [80]
  • The protection of various hydroxyl functional groups by converting into their corresponding trimethylsilyl ethers using hexamethyldisilazane (HMDS).
  • [81]

    Packaging

    5, 25, 100 g in glass bottle

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    Certificate of Origin

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