ethyl S- (2,4,6-trinitrophenyl) dithiocarbonate [1] and a stepwise path through a tetrahedral intermediate in the other reactions [2,3]. In the reaction of O-ethyl Sphenyl dithiocarbonate the zwitterionic tetrahedral intermediate formed by the amine attack can be deprotonated to yield an anionic int
Structure-reactivity relationships in the aminolysis of O-ethyl S-aryl dithiocarbonates in aqueous solution
✍ Scribed by Castro, Enrique A.; Cubillos, Maria; Ibanez, Fernando; Moraga, Inge; Santos, Jose G.
- Book ID
- 126486567
- Publisher
- American Chemical Society
- Year
- 1993
- Tongue
- English
- Weight
- 590 KB
- Volume
- 58
- Category
- Article
- ISSN
- 0022-3263
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The aminolysis reactions of O-ethyl S-(Z-phenyl) dithiocarbonates ( H, Z ϭ p-CH , 3 p-Cl, and p-NO 2 ) with anilines (AN) and N,N-dimethylanilines (DMA) in acetonitrile at 30.0ЊC are investigated. Relatively small values of and for  ( ,0.4 ca. 0.7)  ( Ϫ0.1 ca. Ϫ0.4) X n u c Z l g both ANs and DM
## Abstract The reactions of secondary alicyclic amines with the title substrate (PDTC) are subjected to a kinetic study in 44 wt.% aqueous ethanol, 25.0°C, ionic strength 0.2 M (KCl). Pseudo‐first‐order rate coefficients (__k__~obs~) are found under amine excess. Linear plots of [__N__]/__k__~obs~
The reactions of the title substrate with a series of secondary alicyclic amines are subjected to a kinetic study in 44 wt% aqueous ethanol, 25.0°C, and ionic strength 0.2 M (KC1). The Bronsted-type plot (log k~ vs. pKa of the amine, where k~ is the second-order rate coefficient) obtained is linear