Dianions of 3-oxodithioic acids: preparation and conversion to 3H-1,2-dithiole-3-thiones
β Scribed by Thomas J. Curphey; Adam H. Libby
- Publisher
- Elsevier Science
- Year
- 2000
- Tongue
- French
- Weight
- 129 KB
- Volume
- 41
- Category
- Article
- ISSN
- 0040-4039
No coin nor oath required. For personal study only.
β¦ Synopsis
Reaction of ketones with CS 2 and 2 equivalents of KH in THFΒ±N,N H -dimethylpropyleneurea solution produces the dianions of 3-oxodithioic acids. These dianions are converted in good yield to 3H-1,2dithiole-3-thiones by the sequential action of hexamethyldisilathiane and an oxidizing agent such as hexachloroethane.
π SIMILAR VOLUMES
The combination of P 4 S 10 , sulfur, and hexamethyldisiloxane converts 3-oxoesters to 3H-1,2-dithiole-3thiones in yields generally superior to those obtained with Lawesson's reagent and without the need for chromatography to remove large amounts of phosphorous-containing byproducts.
## Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a βFull Textβ option. The original article is trackable v
The reactivity of 5-amino-3H-1,2,4-dithiazole-3-thiones substituted at their amino group and 5-amino-3H-1,2-dithiole-3-thiones substituted at their amino group and C4 toward compounds containing P(III) atoms has been studied. N,N-Disubstituted-N 0 -(3-thioxo-3H-1,2,4-dithiazol-5-yl)methanimidamides