A new synthetic methodology that captures electrophilic 35 S 8 with aryl Grignard reagents or lithiates provides entry to a wide variety of [ 35 S]aryl sulfonyl chlorides upon oxidation and chlorination.
Synthesis of [35S]phosphorothionate insecticides : The example of [35S] fenthion
✍ Scribed by Marylène Dias; René Mornet; Alain Kotoujansky
- Publisher
- John Wiley and Sons
- Year
- 1994
- Tongue
- French
- Weight
- 214 KB
- Volume
- 34
- Category
- Article
- ISSN
- 0022-2135
No coin nor oath required. For personal study only.
✦ Synopsis
Abstract
A general method for the synthesis of [^35^S]phosphorothionates is proposed, based on the example of [^35^S]fenthion. This consists of reacting molecular ^35^S with the corresponding phosphites which are easily prepared from commercial precursors.
📜 SIMILAR VOLUMES
## 35 The synthesis of dimethyl-[ Slsulphide in high yield from the contact of hydrogen-[35s] sulphide and methanol over a Y A1203.1% Si02 catalyst is described. The procedure produces high yields of dimethyl-[35Sl sulphide of low specific activity compared to that of the hydrogen-[3%1 sulphide s
## Abstract A short and very convenient method is described for the preparation of cysteine‐^35^S‐sulfate using unlabeled cysteine ‐S‐sulfate and L‐cysteine‐^35^S. This method provides an 80% yield and can be used for microquantity synthesis.
## Abstract Unprotected deoxyadenosine **1** was treated with an excess of phosphorus acid and stoichiometric proportions of __N__, __N__′‐di‐__p__‐tolylcarbodiimide in anhydrous pyridine to give deoxyadenosine‐5′‐monophosphite **2**. The latter was activated with trimethylsilyl chloride followed b
L-[ 35S]Homocysteine thiolactone has been synthesized by demethylation of L-{ 35S]Methionine with sodium in liquid ammonia and subsequent lactonisation in acid solution. The radiochemical yield of the carrier added synthesis was in the range of 45 to 50 % with a radiochemical purity higher than 96 %