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Atomfair Lawesson’s reagent C14H14O2P2S4

Description Lawesson’s Reagent (CAS 19172-47-5) is a highly versatile and widely used organosulfur compound with the molecular formula C14H14O2P2S4. This yellow crystalline solid is renowned for its role as a thionation agent, efficiently converting carbonyl groups (C=O) into thiocarbonyl groups (C=S) in ketones, amides, esters, and lactams. Its IUPAC name is 2,4-bis(4-methoxyphenyl)-2,4-bis(sulfanylidene)-1,3,2??5,4??5-dithiadiphosphetane . With a purity of ??95%, it is ideal for organic synthesis, pharmaceutical research, and material science applications. Packaged under inert gas to ensure stability, this reagent is moisture-sensitive and should be stored in a cool, dry place. Suitable for use by professional chemists in controlled laboratory environments.

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Description

Description

Lawesson’s Reagent (CAS 19172-47-5) is a highly versatile and widely used organosulfur compound with the molecular formula C14H14O2P2S4. This yellow crystalline solid is renowned for its role as a thionation agent, efficiently converting carbonyl groups (C=O) into thiocarbonyl groups (C=S) in ketones, amides, esters, and lactams. Its IUPAC name is 2,4-bis(4-methoxyphenyl)-2,4-bis(sulfanylidene)-1,3,2??5,4??5-dithiadiphosphetane. With a purity of ??95%, it is ideal for organic synthesis, pharmaceutical research, and material science applications. Packaged under inert gas to ensure stability, this reagent is moisture-sensitive and should be stored in a cool, dry place. Suitable for use by professional chemists in controlled laboratory environments.

  • CAS No: 19172-47-5
  • Molecular Formula: C14H14O2P2S4
  • Molecular Weight: 404.5
  • Exact Mass: 403.93518837
  • Monoisotopic Mass: 403.93518837
  • IUPAC Name: 2,4-bis(4-methoxyphenyl)-2,4-bis(sulfanylidene)-1,3,2lambda5,4lambda5-dithiadiphosphetane
  • SMILES: COC1=CC=C(C=C1)P2(=S)SP(=S)(S2)C3=CC=C(C=C3)OC
  • Synonyms: Lawesson’s reagent, 19172-47-5, Lawesson reagent, 2,4-Bis(4-methoxyphenyl)-2,4-dithioxo-1,3,2,4-dithiadiphosphetane, 1,3,2,4-Dithiadiphosphetane, 2,4-bis(4-methoxyphenyl)-, 2,4-disulfide

Application

Lawesson’s Reagent is primarily used for the thionation of carbonyl compounds to their corresponding thio-analogs, a critical step in synthesizing thioketones, thioamides, and thioesters. It is widely applied in medicinal chemistry for the preparation of sulfur-containing bioactive molecules and heterocycles. Additionally, it serves as a key reagent in the synthesis of organosulfur compounds for agrochemicals and materials science research.

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