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  6. Thermo Scientific Chemicals Lawesson's Reagent, 97%

Thermo Scientific Chemicals Lawesson's Reagent, 97%

Product Code. 11401898
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Quantity:
5 g
25 g
100 g
500 g

Description

Lawesson's reagent is a thiation agent used to convert carbonyl compounds into thiocarbonyls. It is also used to thionate enones, esters, lactones, amides, lactams and quinones. Further, it is used to prepare thiols from alcohols. It is associated with silver perchlorate and utilized as and oxophilic Lewis acid catalyst for Diels-Alder reaction of dienes with alfa, beta-unsaturated aldehydes.

This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.

Applications
Lawesson′s reagent is a thiation agent used to convert carbonyl compounds into thiocarbonyls. It is also used to thionate enones, esters, lactones, amides, lactams and quinones. Further, it is used to prepare thiols from alcohols. It is associated with silver perchlorate and utilized as and oxophilic Lewis acid catalyst for Diels-Alder reaction of dienes with alfa, beta-unsaturated aldehydes.

Solubility
Insoluble in water.

Notes
Incompatible with strong oxidizing agents.
TRUSTED_SUSTAINABILITY

Chemical Identifiers

CAS 19172-47-5
Molecular Formula C14H14O2P2S4
Molecular Weight (g/mol) 404.452
MDL Number MFCD00005171
InChI Key CFHGBZLNZZVTAY-UHFFFAOYSA-N
Synonym lawesson's reagent, lawesson reagent, 2,4-bis 4-methoxyphenyl-1,3,2,4-dithiadiphosphetane 2,4-disulfide, unii-a4125mq8rx, 1,3,2,4-dithiadiphosphetane, 2,4-bis 4-methoxyphenyl-, 2,4-disulfide, 2,4-bis 4-methoxyphenyl-2,4-dithioxo-1,3,2,4-dithiadiphosphetane, 2,4-bis 4-methoxyphenyl-1,3,2,4-dithiadiphosphetane-2,4-disulfide, 2,4-bis 4-methoxyphenyl-1,3-dithia-2,4-diphosphetane 2,4-disulfide, 2,4-bis 4-methoxyphenyl-1,3-dithia-2,4-diphosphetane 2,4-disulphide, 4-methoxyphenylthiophosphoric cyclic di thioanhydride
PubChem CID 87949
IUPAC Name 2,4-bis(4-methoxyphenyl)-2,4-bis(sulfanylidene)-1,3,2$l^{5},4$l^{5}-dithiadiphosphetane
SMILES COC1=CC=C(C=C1)P2(=S)SP(=S)(S2)C3=CC=C(C=C3)OC

Specifications

Melting Point 221°C to 225°C
Quantity 25 g
UN Number UN3134
Beilstein 1024888
Sensitivity Moisture sensitive
Merck Index 14,5391
Solubility Information Insoluble in water.
Formula Weight 404.47
Percent Purity 97%
Chemical Name or Material Lawesson's Reagent

Safety and Handling

compliance-icons
Product Identifier
  • Lawesson's Reagent
 Signal Word
  • Danger
 Hazard Category
  • Substance which\, in contact with water\, emits flammable gases Category 2
 Hazard Statement
  • H261-In contact with water releases flammable gases.
  • EUH029-Contact with water liberates toxic gas.
 Precautionary Statement
  • P231+P232-Handle under inert gas. Protect from moisture.
  • P280-Wear protective gloves/protective clothing/eye protection/face protection.
 Supplemental information
  • MIXTURE LIST-Contains : 1,3,2,4-Dithiadiphosphetane, 2,4-bis(4-methoxyphenyl)-, 2,4-disulfide

RUO – Research Use Only

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