SYNTHESIS OF HETEROCYCLES
IV.K.2-4 Nakata, T. et al., TL, 35, 8229
pMe
289
OMe
1) 0 3 , MeOH
-78°C,Me 2 S
Me /"
OH
2) (CH 2 0) n , cone HC1 M N J X ^ O V
benezene, 10 °C
I
I
I
3) Ac 2 0/pyridine
K / ^ f / V / O
4) TMSN 3 , TMSOTf
^ %
U
j
MeCN, 0 °C
N,
IV.K.2-5 Mazzanti, G., Zwanenburg, B. et al., JCS(Pl), 3299.
Me
toluene
10% PPTS
IV.K.2-6 Koreeda, M. and Yang, W., SL, 201 and JACS, 116, 10793.
V
Yk
P h
ΤΗ1Γ . 7 « °
P h
(t
VV
Ph—('
η—Ph
SBn
SBn
2. I 2 ,KI
EtOH/H 2 0
Ph
S—S
55%
IV.K.2-7 Aitken, R.A. et al., CC, 2603.
PhH
, Ρ ^ ί
PhCHO
44%
IV.K.2-4 Nakata, T. et al., TL, 35, 8229
pMe
289
OMe
1) 0 3 , MeOH
-78°C,Me 2 S
Me /"
OH
2) (CH 2 0) n , cone HC1 M N J X ^ O V
benezene, 10 °C
I
I
I
3) Ac 2 0/pyridine
K / ^ f / V / O
4) TMSN 3 , TMSOTf
^ %
U
j
MeCN, 0 °C
N,
IV.K.2-5 Mazzanti, G., Zwanenburg, B. et al., JCS(Pl), 3299.
Me
toluene
10% PPTS
IV.K.2-6 Koreeda, M. and Yang, W., SL, 201 and JACS, 116, 10793.
V
Yk
P h
ΤΗ1Γ . 7 « °
P h
(t
VV
Ph—('
η—Ph
SBn
SBn
2. I 2 ,KI
EtOH/H 2 0
Ph
S—S
55%
IV.K.2-7 Aitken, R.A. et al., CC, 2603.
PhH
, Ρ ^ ί
PhCHO
44%