Author/Authors :
Lahiri، نويسنده , , Saswati and Yadav، نويسنده , , Somnath and Chanda، نويسنده , , Mithu and Chakraborty، نويسنده , , Indrajit and Chowdhury، نويسنده , , Krishna and Mukherjee، نويسنده , , Monika and Choudhury، نويسنده , , Angshuman Roy and Guru Row، نويسنده , , Tayur N.، نويسنده ,
Abstract :
Diastereotopically nonequivalent π-facial 1,6-annulated-1,3-cyclohexadienes have been explored as probe molecules to assess the face-selectivities in cycloadditions. Steric factors have been found to be important in controlling the face-selectivities with these dienes. Studies with the hitherto unexplored diene 5 were also consistent with the order C–H > C–C for hyperconjugative stabilization of the transition state.
