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Bismuth tribromide BiBr

Another example where a bismuth tribromide salt was found efficient is in the synthesis of the diastereomers of (6-methyltetrahydropyran-2-yl) acetic acid. Cycliza-tions of two different 5-silyloxy carbonyl compounds under either BiBrs-initiated reductive etherification (leading to the cis isomer) or tandem cyclization-addition (trans-isomer) etherification protocols from the corresponding P-keto ester or aldehyde respectively, has efficiently provide the target molecules [47]. [Pg.36]

See other pages where Bismuth tribromide BiBr is mentioned: [Pg.1036]    [Pg.942]    [Pg.1022]    [Pg.681]    [Pg.1219]    [Pg.1238]    [Pg.1147]    [Pg.1235]    [Pg.940]    [Pg.1000]    [Pg.1019]    [Pg.1036]    [Pg.942]    [Pg.1022]    [Pg.681]    [Pg.1219]    [Pg.1238]    [Pg.1147]    [Pg.1235]    [Pg.940]    [Pg.1000]    [Pg.1019]    [Pg.235]    [Pg.235]    [Pg.978]    [Pg.964]    [Pg.2130]    [Pg.915]    [Pg.933]    [Pg.1180]    [Pg.1090]    [Pg.1177]    [Pg.962]    [Pg.292]   
See also in sourсe #XX -- [ Pg.3 , Pg.21 ]



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