Accéder au contenu
MilliporeSigma
Toutes les photos(3)

Documents

227439

Sigma-Aldrich

Lawesson reagent

97%

Synonyme(s) :

2,4-Bis(4-methoxyphenyl)-2,4-dithioxo-1,3,2,4-dithiadiphosphetane, 2,4-Bis-(4-methoxyphenyl)-1,3-dithia-2,4-diphosphetane 2,4-disulfide, 4-Methoxyphenylthiophosphoric cyclic di(thioanhydride), LR

Se connecterpour consulter vos tarifs contractuels et ceux de votre entreprise/organisme


About This Item

Formule empirique (notation de Hill):
C14H14O2P2S4
Numéro CAS:
Poids moléculaire :
404.47
Numéro Beilstein :
1024888
Numéro MDL:
Code UNSPSC :
12352005
ID de substance PubChem :
Nomenclature NACRES :
NA.22

Niveau de qualité

Pureté

97%

Forme

powder

Pf

228-230 °C (lit.)

Chaîne SMILES 

COc1ccc(cc1)P2(=S)SP(=S)(S2)c3ccc(OC)cc3

InChI

1S/C14H14O2P2S4/c1-15-11-3-7-13(8-4-11)17(19)21-18(20,22-17)14-9-5-12(16-2)6-10-14/h3-10H,1-2H3

Clé InChI

CFHGBZLNZZVTAY-UHFFFAOYSA-N

Vous recherchez des produits similaires ? Visite Guide de comparaison des produits

Catégories apparentées

Description générale

Lawesson′s reagent is generally used as a thiation agent in organic synthesis for the conversion of oxygen functionalities into their thio analogs. It facilitates the conversion of the carbonyl group to thiocarbonyl group as well as carbon-oxygen single bond into a carbon-sulfur single bond.

Application

Lawesson reagent can be used as a reagent to synthesize:
  • Oxthiaphosphinine-3-sulfide derivatives by the reaction with Mannich bases of β-naphthol and 8-hydroxyquinoline.
  • 1,3,5,2-Trithiaphosphinane-2-sulfide derivatives by reacting with benzaldehyde in the presence of trialkyl phosphite.
  • 2,4,6-Triphenyl-1,3,5-trithiane from benzaldehyde and ethyl acrylate.
  • 9-Benzanthronethione by thionation of 9-benzanthone oxime.
  • 1,2,4-Trithiolane from 2,2,4,4-tetramethyl-3-thioxocyclobutanone S-oxide.
  • Sulfur derivatives of triterpenic oxo compounds.
  • Tropothione in situ at room temperature and to trap it with dieneophiles.

Pictogrammes

Flame

Mention d'avertissement

Danger

Mentions de danger

Conseils de prudence

Classification des risques

Water-react 2

Risques supp

Code de la classe de stockage

4.3 - Hazardous materials which set free flammable gases upon contact with water

Classe de danger pour l'eau (WGK)

WGK 3

Point d'éclair (°F)

Not applicable

Point d'éclair (°C)

Not applicable


Certificats d'analyse (COA)

Recherchez un Certificats d'analyse (COA) en saisissant le numéro de lot du produit. Les numéros de lot figurent sur l'étiquette du produit après les mots "Lot" ou "Batch".

Déjà en possession de ce produit ?

Retrouvez la documentation relative aux produits que vous avez récemment achetés dans la Bibliothèque de documents.

Consulter la Bibliothèque de documents

Les clients ont également consulté

Slide 1 of 2

1 of 2

Juan Fortea et al.
Lancet (London, England), 395(10242), 1988-1997 (2020-07-01)
Alzheimer's disease and its complications are the leading cause of death in adults with Down syndrome. Studies have assessed Alzheimer's disease in individuals with Down syndrome, but the natural history of biomarker changes in Down syndrome has not been established.
Reaction of lupane and oleanane triterpenoids with Lawesson's reagent
Kvasnica M, et al.
Tetrahedron, 64(17), 3736-3743 (2008)
T Nakai et al.
Solid state nuclear magnetic resonance, 4(3), 163-171 (1995-03-01)
The nuclear magnetic resonance (NMR) powder patterns observed for the 31P spin pair in Lawesson's reagent (1) were analyzed. Using an efficient procedure, wide ranges of the spin parameters were examined to determine whether they might reproduce the experimental one-dimensional
Frédéric Peyrane et al.
Chemical communications (Cambridge, England), (6)(6), 736-737 (2003-04-22)
Treatment of 2'-deoxy-3',5'-dithexyldimethylsilyl-5,6-dihydrouridine with Lawesson's reagent led to the expected C4-thiolated derivative together with a number of oxathiaphosphepane isomers which resulted from the heat reversible incorporation of an AnPS2 unit within the 2'-deoxyribose moiety explaining the subsequent anomerisation of the
The direct formation of glycosyl thiols from reducing sugars allows one-pot protein glycoconjugation.
Gonçalo J L Bernardes et al.
Angewandte Chemie (International ed. in English), 45(24), 4007-4011 (2006-05-05)

Notre équipe de scientifiques dispose d'une expérience dans tous les secteurs de la recherche, notamment en sciences de la vie, science des matériaux, synthèse chimique, chromatographie, analyse et dans de nombreux autres domaines..

Contacter notre Service technique