102860-22-0Relevant articles and documents
Improved and environmentally friendly large-scale preparation of cyclohexadienyl-, cycloheptadienyl sulfone and enantiopure epoxy cycloheptyl sulfones
Park, Taesik,Torres, Eduardo,Fuchs, Philip L.
, p. 1895 - 1900 (2007/10/03)
Kilogram-scale amounts of cycloheptadienyl phenylsulfone and cyclohexadienyl phenylsulfone were prepared by one operation in 5 stages with over 50% yield and requiring no purification. A practical and efficient method for the Jacobsen asymmetric epoxidati
Economical and environmentally friendly syntheses of 2-(phenylsulfonyl)-1,3-cyclohexadiene and 2-(phenylsulfonyl)-1,3-cycloheptadiene
Meyers, David J.,Fuchs, Philip L.
, p. 200 - 204 (2007/10/03)
A large-scale and inexpensive synthesis of dienes 1 and 2 has been developed via a four-step procedure starting with benzenethiol and the corresponding cyclic ketone. No chromatography is required.
BF3-induced rearrangement of aziridino cyclopropanes derived from 2-phenylsulfonyl 1,3-dienes. Application to the total synthesis of (±)-ferruginine
Jonsson,Loefstroem,Baeckvall
, p. 8454 - 8457 (2007/10/03)
Total synthesis of the alkaloid (±)-ferruginine (1) has been developed via the 2-phenylsulfonyl 1,3-diene approach. BF3-induced rearrangement of the N-protected cyclohexane aziridino cyclopropane 8, derived from its corresponding epoxy cyclopropane, afforded the desired tropane alkaloid skeleton 9 in good yield. Michael addition of nitroethane (as an acyl anion equivalent) and transformation of the nitro group of the adduct 10 to a keto function gave 11. Elimination of benzenesulfinic acid and subsequent replacement of the tosyl group by a methyl group afforded the title compound 1.