Tetrahedron Letters p. 5505 - 5508 (1998)
Update date:2022-08-03
Topics:
Boaz, Neil W.
High enantioselectivity has been observed for the catalytic asymmetric hydrogenation of enol esters bearing a vinylic (≤94% ee) or acetylenic (>97% ee) substituent using a rhodium-chiral bisphosphine catalyst. This is at variance with the hydrogenation of enol esters bearing a saturated substituent, which are hydrogenated with only moderate enantioselectivity under the same conditions.
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(1998)
