PROTECTING GROUPS
V.D-5 Yamada, T. et al., BCJ, 67, 2614.
325
Ar
^ J
O
K
R'
R·
9 .Λ..
R
P—UR·
TiCI 4 , -78°C
64-72%, 93-95 % e.e.
V.D-6 Yamamoto, H. et al., JACS, 116, 11179; Reymond, J.L., Reber, J.L.
and Lerner, R.A., AG(E), 33,475.
OTMS
Ar
O
Λ ^ Ar
95 %, 79-96 % e.e.
V.D-7 McDonald, CE. et al., TL, 35, 57; Lillie, B.M. and Avery, M.A.,
TL, 35. 969.
OMe
TMSO
Q
OTMS
R - % < R · ) (
™ S > . O W *
\
80-94 %
\
X
\
'
DDQ, CH 2 C1 2 , H 2 0 (R')H^""\"
R
OMe
40-97 %
V.D-5 Yamada, T. et al., BCJ, 67, 2614.
325
Ar
^ J
O
K
R'
R·
9 .Λ..
R
P—UR·
TiCI 4 , -78°C
64-72%, 93-95 % e.e.
V.D-6 Yamamoto, H. et al., JACS, 116, 11179; Reymond, J.L., Reber, J.L.
and Lerner, R.A., AG(E), 33,475.
OTMS
Ar
O
Λ ^ Ar
95 %, 79-96 % e.e.
V.D-7 McDonald, CE. et al., TL, 35, 57; Lillie, B.M. and Avery, M.A.,
TL, 35. 969.
OMe
TMSO
Q
OTMS
R - % < R · ) (
™ S > . O W *
\
80-94 %
\
X
\
'
DDQ, CH 2 C1 2 , H 2 0 (R')H^""\"
R
OMe
40-97 %