The selective obtention of epoxides from delta-pyronene has been realized using a peracid and a cyclodehydrohalogenation reaction. The isomerization of an epoxidic isomer with Lewis and protonic acids and on active alumina has been studied leading to cyclocitrals.
L'epoxy-pyronène : Synthon d'accès aux cyclocitrals et aux ionones et précurseur de nouveaux composés terpénoïdes
作者:F. Marc、B. Soulet、D. Serramedan、B. Delmond
DOI:10.1016/s0040-4020(01)87017-4
日期:1994.3
epoxy-pyronene from δ-pyronene has been realized using metachloroperbenzoïc acid. The isomerization of this epoxydic compound with Lewis and protonic acids and on active alumina has been studied leading to cyclocitrals. Ionones are obtained from epoxy-pyronene by homologation with various C3 units, in the presence of paratoluenesulfonic acid in order to obtain β-cyclocitral in situ. New terpenic compounds with