252
ORGANIC SYNTHESIS—1995
IV.F-2 Danks, T.N. and Velo-Rego, D., TL, 35, 9443; see also: de
Meijere, A. et al, Cß, 127, 911.
(CO) 5 C
Ph
heat
X?
Ph' ΐ
C 7 H 8
18 h
rn
I
50-60% R
IV.F-3 Katritzky, A.R. et al., JOC, 59, 4551; see also: Molina, P. et al.
T, 50, 5027.
Ph
3!V^ N *
PPh
3
w^_ öC γ Ar
58-75%
i
IV.F-4 Fry, D.F., Fowler, C.B. and Dieter, R.K., SL, 836.
BrCH 2 (CH 2 ) n CH 2 CN
n=l,2
RMgX
CIÎ2)„
C 6 H,/Et 2 0, rt
(addTHFifn=2)
ex
33-90%
N
R
IV.F-5 Pearson, W.H. et al., TL, 35, 7001, 2641 and 9173.
^^%
Λ
similarly for intramolecular cyclizations
43-93%
ORGANIC SYNTHESIS—1995
IV.F-2 Danks, T.N. and Velo-Rego, D., TL, 35, 9443; see also: de
Meijere, A. et al, Cß, 127, 911.
(CO) 5 C
Ph
heat
X?
Ph' ΐ
C 7 H 8
18 h
rn
I
50-60% R
IV.F-3 Katritzky, A.R. et al., JOC, 59, 4551; see also: Molina, P. et al.
T, 50, 5027.
Ph
3!V^ N *
PPh
3
w^_ öC γ Ar
58-75%
i
IV.F-4 Fry, D.F., Fowler, C.B. and Dieter, R.K., SL, 836.
BrCH 2 (CH 2 ) n CH 2 CN
n=l,2
RMgX
CIÎ2)„
C 6 H,/Et 2 0, rt
(addTHFifn=2)
ex
33-90%
N
R
IV.F-5 Pearson, W.H. et al., TL, 35, 7001, 2641 and 9173.
^^%
Λ
similarly for intramolecular cyclizations
43-93%