340
ORGANIC SYNTHESIS—1995
VI.A.4-4 Shimizu, T. et al., H, 38, 243; Winter, J. and Retey, J., S, 245;
Pansare, S.V. and Ravi, R.G., SL, 823.
OH
OH
MeOCHCl 2 , TiCl 4 , CH 2 CI 2
-10°C to rt
*"
O
Me'
7 7 %
CHO
VI.A.5 Hosomi, A. et al., CL, 437; see also: Baklouti, A. et al., TL, 35,
6877.
R.
.C0 2 Et
MeS
SMe
1: Me 2 Cu(CN)Li 2
2: RCOCI
R.
X 0 2 E t
MeS^Ni^
O
71-88 %
VI.A.4-6 Fukumoto, K. et al., JOC, 59, 74.
Me
OH
OH
Sharpless epoxidation
, ^ Ν
OTBS
O
Me" " ^ "OR
98%,95%e.e.
VI.A.4-7 Cha, J.S. et al., OPP, 26, 583; Oguni, N. et al., T, 50, 2821.
Ar—CN
l:Na(hex 2 N) 3 AlH,THF
2: aq HC1
Ar—CHO
63-99 %
ORGANIC SYNTHESIS—1995
VI.A.4-4 Shimizu, T. et al., H, 38, 243; Winter, J. and Retey, J., S, 245;
Pansare, S.V. and Ravi, R.G., SL, 823.
OH
OH
MeOCHCl 2 , TiCl 4 , CH 2 CI 2
-10°C to rt
*"
O
Me'
7 7 %
CHO
VI.A.5 Hosomi, A. et al., CL, 437; see also: Baklouti, A. et al., TL, 35,
6877.
R.
.C0 2 Et
MeS
SMe
1: Me 2 Cu(CN)Li 2
2: RCOCI
R.
X 0 2 E t
MeS^Ni^
O
71-88 %
VI.A.4-6 Fukumoto, K. et al., JOC, 59, 74.
Me
OH
OH
Sharpless epoxidation
, ^ Ν
OTBS
O
Me" " ^ "OR
98%,95%e.e.
VI.A.4-7 Cha, J.S. et al., OPP, 26, 583; Oguni, N. et al., T, 50, 2821.
Ar—CN
l:Na(hex 2 N) 3 AlH,THF
2: aq HC1
Ar—CHO
63-99 %