Oxidations - Carbohydrates: Tools for Stereoselective Synthesis - page 326

Table 15.1 Continued )

Entry Ketone

Conversion
(ee) (%)

Conversion (ee)
(%)

Conversion
(ee) (%)

20 14 (75) 57 (20) (S) 41 (62)

21 — — 4 (23) (S,S)

22 3 (11) 23 (12) 11 (5)

23 10 (88) — 61 (87)

a) The epoxides have the (R,R) or (R) configurations unless otherwise noted.

Scheme 15.18 Synthesis of ketone 60.