T

O 11

Catalyst h h2 _ R^N^COOR

RyNS COOR

Solvent

H i COOR

p*RANH

P'SM

Catalyst h h2 _ R^N^COOR

COOR

"p'RVVcoor

S = solvent or weak ligand

P*= (R,R)-DIPAMP, (R,R)-CHIRAPHOS or P' (R,R)-BINAP

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