138643-63-7Relevant academic research and scientific papers
Intramolecular homolytic substitution at the sulfur atom: an alternative way to generate phosphorus- and sulfur-centered radicals
Carta, Paola,Puljic, Nicolas,Robert, Carine,Dhimane, Anne-Lise,Ollivier, Cyril,Fensterbank, Louis,Lac?te, Emmanuel,Malacria, Max
experimental part, p. 11865 - 11875 (2009/04/06)
Two efficient procedures involving tin hydride or thiophenol-mediated intramolecular homolytic substitution at the sulfur atom are reported. They lead to the generation of varied P(V)-centered radicals from the corresponding aryl or alkyne thiophosphorus substrates. The radical formed can be trapped by an olefin via an intermolecular addition, leading to the construction of C-P bonds. Thiophosphination of triple bonds was also achieved using a radical cycloisomerization process. Extension of the methodology to sulfur-containing species was examined.
The Cyclosulfonation Reaction: A Comment on the Radical Reactions of 4-Pentenyl Tosylate
Craig, Donald C.,Durie, Alexander,Edwards, Gavin L.,Sinclair, David J.
, p. 1307 - 1310 (2007/10/02)
Attempted free radical rearrangement of the para-toluenesulfonyl ester of 4-penten-1-ol in carbon tetrachloride gives only the simple Kharash 1,2-adduct, instead of the 2-substituted tetrahydrofuran as claimed by Serra and da Silva Correa.
An Interesting Rearrangement of Unsaturated Sulphonate and Thiosulphonate Esters
Serra, Armenio C.,Correa, Carlos M. M. da Silva
, p. 6653 - 6654 (2007/10/02)
Alkenyl tosylates and thiotosylates, in the presence of radical initiators, undergo radical rearrangements to the corresponding tetrahydrofuran and tetrahydrothiophen derivatives.
