Diels-Alder reactions of 1,2-(1,1'-binaphthalene-2,2'-diyldisulfonyl)ethylene with symmetrical and unsymmetrical dienes
作者:Ottorino De Lucchi、Davide Fabbri、Sergio Cossu、Giovanni Valle
DOI:10.1021/jo00005a041
日期:1991.3
The C2-symmetrical chiral reagent 1,2-(1,1'-binaphthalene-2,2'-diyldisulfonyl)ethylene (1) is a reactive dienophile and forms Diels-Alder adducts with symmetrical and unsymmetrical dienes. In the case of unsymmetrical dienes the reaction affords, in most cases, a single diastereomeric adduct whose stereochemistry has been determined by NMR spectroscopy and confirmed by X-ray structure determination of selected adducts. The arylsulfonyl groups can be removed with formation of a double bond, making 1 a chiral synthetic equivalent of acetylene in [4 + 2]-cycloaddition reactions. The binaphthyl auxiliary can be recovered and recycled.
Furia, F. di; Licini, G.; Modena, G., Bulletin de la Societe Chimique de France, 1990, # 6, p. 734 - 744
作者:Furia, F. di、Licini, G.、Modena, G.、Valle, G.
DOI:——
日期:——
FULVIO, DI FURIA;LICINI, GIULIA;MODENA, GIORGIO, TETRAHEDRON LETT., 30,(1989) N9, C. 2575-2576
作者:FULVIO, DI FURIA、LICINI, GIULIA、MODENA, GIORGIO
DOI:——
日期:——
DI, FURIA F.;LICINI, G.;MODENA, G.;VALLE, G., BULL. SOC. CHIM. FR.,(1990) N, C. 734-744