Lawesson reagent

ALDRICH/227439 - 90%

Synonym: 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

CAS Number: 19172-47-5
Empirical Formula (Hill Notation): C₁₄H₁₄O₂P₂S₄
Molecular Weight: 404.47
MDL Number: MFCD00005171
Linear Formula: C₁₄H₁₄O₂P₂S₄
Product Type: Chemical

Catalog Number	PKG Qty.	Price


45-227439-10G	10 g	$51.30 1/EA	Add To Favorites
45-227439-25G	25 g	$62.90 1/EA	Add To Favorites
45-227439-100G	100 g	$132.00 1/EA	Add To Favorites

ATR-IR Spectra for 2,4-Bis(4-methoxyphenyl)-2,4-dithioxo-1,3,2,4-dithiadiphosphetane.

FT-IR Spectra for 2,4-Bis(4-methoxyphenyl)-2,4-dithioxo-1,3,2,4-dithiadiphosphetane.

This picture is provided solely for illustration purposes. Optical properties of the actual product may deviate. Relevant product information is printed on labeled products and other accompanying or available information material. This image depicts SKU: 227439-100G

Properties
Descriptions
Safety Info.
Basic Data

assay	90%
form	powder
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
InChI key	CFHGBZLNZZVTAY-UHFFFAOYSA-N
mp	228-230 °C (lit.)
Quality Level	100
SMILES string	COc1ccc(cc1)P2(=S)SP(=S)(S2)c3ccc(OC)cc3

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.
General description:	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.
Packaging:	10, 25, 100 g in glass bottle

Symbol	GHS02
Signal word	Danger
Hazard statements	H261
Precautionary statements	P231 + P232 - P422
Hazard Codes	F
Risk Statements	15/29
Safety Statements	7/8-43
RIDADR	UN 3134 6.1(4.3) / PGII
WGK Germany	WGK 3
Flash Point(F)	Not applicable
Flash Point(C)	Not applicable
Supplemental Hazard Statements	EUH029

Purity	90%
mp	228-230 °C (lit.)
UNSPSC	12352005

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