6-((1R,2S)-1-(diphenylphosphino)-3-methoxy-1-phenylprop-2-yloxy)dibenzo[d,f][1,3,2]dioxaphosphepine; hydrogen; bis(norbornadiene)rhodium(I) tetrafluoroborate in tetrahydrofuran T=-40°C; P=15001.5 Torr; Product distribution / selectivity;

phenyl 4,6-O-(R)-benzylidene-2,3-O-bis(diphenylphosphino)-.beta.-D-glucopyranoside; Rh(cyclo-octa-1,5-diene)2; hydrogen; tetrafluoroboric acid in methanol T=25°C; P=750.06 Torr; Yield given. Yields of byproduct given. Title compound not separated from byproducts;

1: LiAlH4 / tetrahydrofuran 2: H2 / (S,S)-[(Et-DuPHOS)Rh(COD)]OTf / tetrahydrofuran / 12 h / 20 - 25 °C / 1551.44 Torr View Scheme

phenyl 4,6-O-(R)-benzylidene-2,3-O-bis(diphenylphosphino)-.beta.-D-glucopyranoside; Rh(cyclo-octa-1,5-diene)2; hydrogen; tetrafluoroboric acid in methanol T=25°C; P=750.06 Torr; Yield given. Yields of byproduct given. Title compound not separated from byproducts;

(R)-methyl-BoPhoz; hydrogen; bis(cycloocta-1,5-diene)rhodium(I) trifluoromethanesulfonate in tetrahydrofuran T=25°C; P=517.148 Torr; 1 h;

1: LiAlH4 / tetrahydrofuran 2: H2 / (S,S)-[(Et-DuPHOS)Rh(COD)]OTf / tetrahydrofuran / 12 h / 20 - 25 °C / 1551.44 Torr View Scheme

1: H2, Rh(COD)2/BF4, (S)-PROPRAPHOS / methanol / 25 °C / 750.06 Torr 2: 4 N HCl / methanol View Scheme