The synthesis and kinetic cyclisations of a series of linear quinine o
ligomers are described. The distribution of cyclic oligomers is differ
ent from that observed in the corresponding thermodynamic cyclisation:
cyclic tetramer is observed in the kinetic cyclisations, indicating t
hat its absence under thermodynamic conditions is not due to any kinet
ic barrier to its formation. Copyright (C) 1996 Elsevier Science Ltd