220606-58-6Relevant articles and documents
Dipolarophilic behaviour of the thiophene ring in intramolecular nitrile imine cycloadditions
Broggini, Gianluigi,Garanti, Luisa,Molteni, Giorgio,Zecchi, Gaetano
, p. 4103 - 4106 (2007/10/03)
Unprecedented intramolecular nitrile imine cycloadditions onto a thiophene ring are described as a synthetic route to a number of tricyclic pyrazoline derivatives (5). Diadducts 6 and 7, which can be ascribed to a sequential intra-intermolecular cycloaddi