Intramolecular diels-alder reaction with furan-diene
作者:Luc A. Van Royen、Roelant Mijngheer、Pierre J. De Clercq
DOI:10.1016/s0040-4020(01)82362-0
日期:1985.1
involving alkylation with ethyl (E)-3-ethoxy-4-iodo-2-butenoate, reduction and acid hydrolysis. The reduced adduct 14 is further converted into (±)-adrenosterone (6) via 24, the dienediolate equivalent of which is a known intermediate in corticosteroid synthesis.
Royen, Luc A. Van; Mijngheer, Roelant; Clercq, Pierre J. De, Bulletin des Societes Chimiques Belges, 1984, vol. 93, # 11, p. 1019 - 1036
作者:Royen, Luc A. Van、Mijngheer, Roelant、Clercq, Pierre J. De
DOI:——
日期:——
Intramolecular diels-alder reaction with furan-diene. A novel potential entry to steroids.
作者:Luc A. Van Royen、Roelant Mijngheer、Pierre J. De Clercq
DOI:10.1016/s0040-4039(00)87593-0
日期:1982.1
Depending on the reaction conditions the intramolecular Diels-Alder reaction of furan-diene yields predominantly either one of two adducts and , which possess the necessary functionality for eventual transformation into corticosteroids. The dienophile was introduced via alkylation of the enolate, formally obtained upon lithium-liq. ammonia reduction of 3-furyl-2-methyl-2-cyclopentenone ().