Cationic Rh(I) catalyst in fluorinated alcohol: mild intramolecular cycloaddition reactions of ester-tethered unsaturated compounds.
In fluorinated alcohols, the cationic Rh(I) species, which is derived from [Rh(COD)Cl]2 and AgSbF6, efficiently catalyzed intramolecular [4+2] cycloaddition reactions of ester-tethered 1,3-diene-8-yne derivatives. The catalytic system was also effective in intramolecular [5+2] cycloaddition reactions of ester-tethered omega-alkynyl vinylcyclopropane compounds.
Saito
Akio
A
Laboratory of Organic Reaction Chemistry, Showa Pharmaceutical University, 3-3165 Higashi-tamagawagakuen, Machida, Tokyo 194-8543, Japan.
Ono
Takamitsu
T
Hanzawa
Yuji
Y
D000438:Alcohols / Q000737:chemistry*; D002384:Catalysis; D003500:Cyclization; D004952:Esters / Q000737:chemistry*; D005461:Fluorine / Q000737:chemistry*; D007783:Lactones / Q000737:chemistry; D015394:Molecular Structure; D012238:Rhodium / Q000737:chemistry*; D012822:Silicon Dioxide / Q000737:chemistry
D000438:Alcohols; D004952:Esters; D007783:Lactones; D005461:Fluorine; D012822:Silicon Dioxide; D012238:Rhodium