Chemo-, regio- and stereoselective Diels–Alder reactions of EWG bearing thiophene-1,1-dioxides
作者:Valentine G. Nenajdenko、Andrew M. Moiseev、Elizabeth S. Balenkova
DOI:10.1016/j.tet.2005.09.006
日期:2005.11
EWG-containing thiophene-1,1-dioxides were found to be very active dienophiles in reactions with 1,3-dienes to afford corresponding cycloadducts in mild conditions. A chemo-, regio- and stereoselective cycloaddition was observed. Reaction resulted in formation of derivatives of tetrahydrobenzothiophene-1,1-dioxides in high yields.
Reactions of acceptor thiophene 1,1-dioxides with dienes. Synthesis of bisadducts
作者:V. G. Nenajdenko、A. M. Moiseev、E. S. Balenkova
DOI:10.1007/s11172-006-0094-5
日期:2005.9
Cycloaddition of dienes to thiophene dioxides affords mono-and bisadducts, depending on the reaction conditions. Regio-and stereochemical specific features of the cycloaddition were revealed. The thermal rearrangement of the monoadduct was found.