3.3 Dimerisation
77
EtO
2 C
Cl
N
NH
Ph
N
N
N
N
Ph
Ph
EtO
2 C
CO
2 Et
Et
3 N
THF
rt, 720 h
59 %
h
i
PrOH, 2-MeTHF
rt, 7h
90 %
N
N
N
N
OMe
MeO
N
N
N
OMe
OMe
MeO
Scheme 3.65
Examples of NI dimerisation