57774-95-5Relevant articles and documents
Mild preparation of alkenes from phenyl sulfides: One-pot elimination of phenylthio group via sulfilimine at ambient temperature
Matsuo, Jun-Ichi,Kozai, Takaaki,Ishibashi, Hiroyuki
, p. 6095 - 6098 (2007/10/03)
(Chemical Equation Presented) Various alkenes were prepared from phenyl sulfides in a one-pot manner at room temperature by converting them to the corresponding S-aminosulfonium salts with O-mesitylenesulfonylhydroxylamine, followed by treatment with pota
Synthese de lactones a cycle moyen: Application a la synthese du pentadecanolide-15 et du phoracantholide I
Cossy, Janine,Pete, Jean-Pierre
, p. 989 - 994 (2007/10/02)
Medium ring size lactones can be prepared from bifunctional commercial starting compounds in high yields, using a few step sequence.Lactonisation is obtained by cyclization of the free ω-hydroxyacids or by the cyclization of ω-hydroxyacids having the hydroxy and carboxy group protected.
Epoxyannulation. 4. Reactions of 1,5-, 1,6-, and 1,7-Oxosulfonium Salts
Garst, Michael E.,McBride, Bill J.,Johnson, Alan T.
, p. 8 - 16 (2007/10/02)
Treatment of six 1,5- and 1,6-oxosulfonium salts with potassium tert-butoxide affords an oxabicyclohexane, an oxabicycloheptane, hydrindan oxides, or a decalin oxide in 55-95percent yield.The stereoselectivity of this reaction ranges from 75percent for the formation of (1α,3α,7α)-2-oxatricyclo1,3>decane (21) to greater 99percent for (1α,2α,7α)-2-oxatricyclo1,3>decane (14) and for (1α,2α,8β)-2-oxatricyclo1,3>undecane (25).Five 1,7-oxosulfonium salts, one 1,8-salt, and one 1,11-salt and base give only elimination products.The sulfonium salt from 2-cyclopentanone (29) provides 3-methylspirodec-2-en-6-one (30) in 40percent yield.The salt from 2-cyclohexanone (32) yields 38percent of 4-methylbicycloundeca-1(7),3,5-triene (33).