Radical addition to strained olefins: a flexible access to small ring derivatives
作者:Nicolas Legrand、Béatrice Quiclet-Sire、Samir Z Zard
DOI:10.1016/s0040-4039(00)01777-9
日期:2000.12
Intermolecular radicaladditions to various strained olefins such as cyclopropenes, cyclobutenes, azetines and methylenecyclopropanes can be accomplished in useful yield using the xanthate transfer method; the adducts may undergo further cyclisation to give polycyclic structures.
Intermolecular free radical additions to strained cycloalkenes. Cyclopropene and cyclobutene as radical acceptors
作者:Zorana Ferjančić、Živorad Čeković、Radomir N Saičić
DOI:10.1016/s0040-4039(00)00286-0
日期:2000.4
Intermolecular additions of electrophilic radicals to cyclopropene and cyclobutene derivatives afford the addition products in 37-50% yield. The strain relief in the intermediary radical accelerates the addition, as shown by competitive addition experiments. (C) 2000 Elsevier Science Ltd. All rights reserved.
Niwayama Satomi, Houk K. N., Kusumi Takenori, Tetrahedron Lett, 35 (1994) N 4, S 527-530