316
ORGANIC SYNTHESIS—1995
V.A-3 Falck, J.R. et al., JACS, 116, 8354.
Hip-OH, DEAD, Ph 3 P
R
Ό Η w
Hip =-C(CF 3 ) 2 Ph
^
R ^ ^ O H i p
\
/
Li naphthalenide
V.A-4 Waldmann, H. et al., SU 65.
46-98 %
HO
acetyl esterase
0.15 N NaCl
pH 6.5, rt
AcO
AcO
Selective enzymatic deprotection of OH and NH
^ %
groups in carbohydrates and nucleosìdes
V.A-5 Tanemura, K. et al., BCJ, 67, 290.
R
OTHP
DDQ, aq MeOH
R
OH
81-98 %
V.A-6 Thompson, L.A. and Ellman, J.A., TL, 35,9333; Ranu, B.C. and
Saha, M. JOC, 59, 8269; Campelo, J.M. et al., TL, 35, 1345.
,o N
R
OH +
PPTS, 80°C*
RO^ ^O.
oO®
ORGANIC SYNTHESIS—1995
V.A-3 Falck, J.R. et al., JACS, 116, 8354.
Hip-OH, DEAD, Ph 3 P
R
Ό Η w
Hip =-C(CF 3 ) 2 Ph
^
R ^ ^ O H i p
\
/
Li naphthalenide
V.A-4 Waldmann, H. et al., SU 65.
46-98 %
HO
acetyl esterase
0.15 N NaCl
pH 6.5, rt
AcO
AcO
Selective enzymatic deprotection of OH and NH
^ %
groups in carbohydrates and nucleosìdes
V.A-5 Tanemura, K. et al., BCJ, 67, 290.
R
OTHP
DDQ, aq MeOH
R
OH
81-98 %
V.A-6 Thompson, L.A. and Ellman, J.A., TL, 35,9333; Ranu, B.C. and
Saha, M. JOC, 59, 8269; Campelo, J.M. et al., TL, 35, 1345.
,o N
R
OH +
PPTS, 80°C*
RO^ ^O.
oO®