o-Benzenedisulfonimide has been used for the first time as a Bronsted acid catalyst to induce electrocyclization of dienones into cyclopentenones (Nazarov reaction). The catalyst has been used in various organic solvents or under solvent-free conditions and it is entirely recoverable from the reaction mixture. The versatility and the effectiveness of the proposed procedure is demonstrated on a wide range of both activated and inactivated substrates.
O-benzenedisulfonimide as a powerful and recyclable organocatalyst for the nazarov reaction / M.Barbero; S.Cadamuro; A.Deagostino; S.Dughera; P.Larini; E.G.Occhiato; C.Prandi; S.Tabasso; R.Vulcano; P.Venturello. - In: SYNTHESIS. - ISSN 0039-7881. - STAMPA. - ...:(2009), pp. 2260-2266. [10.1055/s-0029-1216819]
O-benzenedisulfonimide as a powerful and recyclable organocatalyst for the nazarov reaction
OCCHIATO, ERNESTO GIOVANNI;
2009
Abstract
o-Benzenedisulfonimide has been used for the first time as a Bronsted acid catalyst to induce electrocyclization of dienones into cyclopentenones (Nazarov reaction). The catalyst has been used in various organic solvents or under solvent-free conditions and it is entirely recoverable from the reaction mixture. The versatility and the effectiveness of the proposed procedure is demonstrated on a wide range of both activated and inactivated substrates.
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