227439
Lawesson reagent
97%
동의어(들):
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
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모든 사진(3)
About This Item
실험식(Hill 표기법):
C14H14O2P2S4
CAS Number:
Molecular Weight:
404.47
Beilstein:
1024888
MDL number:
UNSPSC 코드:
12352005
PubChem Substance ID:
NACRES:
NA.22
추천 제품
일반 설명
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.
애플리케이션
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.
신호어
Danger
유해 및 위험 성명서
예방조치 성명서
Hazard Classifications
Water-react 2
보충제 위험성
Storage Class Code
4.3 - Hazardous materials which set free flammable gases upon contact with water
WGK
WGK 3
Flash Point (°F)
Not applicable
Flash Point (°C)
Not applicable
이미 열람한 고객
Synthesis of 1, 2, 4-trithiolanes from thione S-oxides and Lawesson reagent at room temperature
Okuma K, et al.
Bulletin of the Chemical Society of Japan, 77(1), 187-188 (2004)
Jos C M Kistemaker et al.
Journal of the American Chemical Society, 139(28), 9650-9661 (2017-06-20)
Symmetric molecular motors based on two overcrowded alkenes with a notable absence of a stereogenic center show potential to function as novel mechanical systems in the development of more advanced nanomachines offering controlled motion over surfaces. Elucidation of the key
Qiuping Ding et al.
Journal of combinatorial chemistry, 11(6), 1047-1049 (2009-10-15)
In the presence of Lawesson's reagent, metal-free one-pot cascade reactions of 2-iodoanilines with acid chlorides proceeded smoothly leading to 2-substituted benzothiazoles in good to excellent yields under mild conditions. Three steps were involved in the reaction process: (1) 2-iodoanilines reacted
Lawesson's reagent
Nagaoka J
Journal of Synthetic Organic Chemistry, Japan, 53(12), 1138-1140 (1995)
A novel protocol for the generation of tropothione and its trapping with electron deficient dienophiles
Nair V, et al.
Tetrahedron Letters, 47(52), 9329-9329 (2006)
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