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  2. Pyridine (data page) - Wikipedia

    en.wikipedia.org/wiki/Pyridine_(data_page)

    Download as PDF; Printable version; ... Material Safety Data Sheet ... log 10 of Pyridine vapor pressure. Uses formula: ...

  3. Triphosgene - Wikipedia

    en.wikipedia.org/wiki/Triphosgene

    Some Alkyl chlorides are prepared by treating alcohols with a mixture of triphosgene and pyridine. Alkyl dichlorides and trichlorides can similarly be synthesized using triphosgene. Vinyl chlorides are synthesized from ketones using triphosgene and DMF to form a Vilsmeier reagent, followed by a ring opening by chloride ions.

  4. 2,6-Diacetylpyridine - Wikipedia

    en.wikipedia.org/wiki/2,6-diacetylpyridine

    Download as PDF; Printable version; ... Safety data sheet (SDS) MSDS sheet: Related compounds ... It is a disubstituted pyridine.

  5. Pyridine - Wikipedia

    en.wikipedia.org/wiki/Pyridine

    Pyridine is a basic heterocyclic organic compound with the chemical formula C 5 H 5 N. It is structurally related to benzene, with one methine group (=CH−) replaced by a nitrogen atom (=N−). It is a highly flammable, weakly alkaline, water-miscible liquid with a distinctive, unpleasant fish-like smell.

  6. Pyridinium chloride - Wikipedia

    en.wikipedia.org/wiki/Pyridinium_chloride

    Containing a pyridinium ion, pyridinium chloride has a pK a of approximately 5, slightly more acidic than that of typical amines.This is due to the hybridization of the nitrogen: the nitrogen is sp 2 hybridized and more electronegative than those nitrogens in ammonium cations, which are sp 3 hybridized.

  7. 2-Chloropyridine - Wikipedia

    en.wikipedia.org/wiki/2-Chloropyridine

    Although pyridine is an excellent source of carbon, nitrogen, and energy for certain microorganisms, introduction of a halogen moiety significantly retards degradation of the pyridine ring. With the exception of 4-chloropyridine, each of the mono- and di-substituted chloropyridines were found to be relatively resistant to microbiological ...

  8. Pyridinium p-toluenesulfonate - Wikipedia

    en.wikipedia.org/wiki/Pyridinium_p-toluenesulfonate

    In organic synthesis, PPTS is used as a weakly acidic catalyst, providing an organic soluble source of pyridinium (C 5 H 5 NH +) ions.For example, PPTS is used to deprotect silyl ethers or tetrahydropyranyl ethers when a substrate is unstable to stronger acid catalysts.

  9. Pyridinium chlorochromate - Wikipedia

    en.wikipedia.org/wiki/Pyridinium_chlorochromate

    Pyridinium chlorochromate in a vial. Pyridinium chlorochromate (PCC) is a yellow-orange salt with the formula [C 5 H 5 NH] + [CrO 3 Cl] −.It is a reagent in organic synthesis used primarily for oxidation of alcohols to form carbonyls.