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CBr4/PPh

PhCMe202H, cat VO(acac)2, 2,6-lutidine/CBr4, PPhs/Zn, HOAc, THF... [Pg.227]

CBr4, PPhj, EtjN CBr4, PPhs, Zn CBr4, P(NMe2)3 HCBrj, KO-r-Bu, PHij... [Pg.1694]

Scheme 245 Ma s formal synthesis of (—)-indolizidine 209B (1876). Reagents and conditions (a) MgS04, it, 2 days (b) CBr4, PPhj, MeCN, 0 °C to it, then add NEts, reflux, 5 h (c) Hi (70 atm), Raney Ni, NEtj (1 drop), EtOH, 60-70 C, 15 h (d), CBr4, PPhs, CH2CI2, 0 °C to It, 17 h. Scheme 245 Ma s formal synthesis of (—)-indolizidine 209B (1876). Reagents and conditions (a) MgS04, it, 2 days (b) CBr4, PPhj, MeCN, 0 °C to it, then add NEts, reflux, 5 h (c) Hi (70 atm), Raney Ni, NEtj (1 drop), EtOH, 60-70 C, 15 h (d), CBr4, PPhs, CH2CI2, 0 °C to It, 17 h.
Q 1. CBr4, PPhs, MeCN 7 2. BnNHs, EtsN, CHCI3 /— Pd(PPh3)4, BU3N, CO, CH3CN 0... [Pg.195]

See other pages where CBr4/PPh is mentioned: [Pg.1094]    [Pg.17]    [Pg.2024]    [Pg.803]    [Pg.130]    [Pg.180]    [Pg.340]    [Pg.1658]    [Pg.412]    [Pg.161]    [Pg.403]    [Pg.41]    [Pg.303]    [Pg.90]    [Pg.106]    [Pg.53]    [Pg.59]    [Pg.82]    [Pg.99]    [Pg.127]    [Pg.232]    [Pg.267]    [Pg.359]    [Pg.383]    [Pg.408]    [Pg.401]    [Pg.125]    [Pg.520]    [Pg.74]   
See also in sourсe #XX -- [ Pg.3 , Pg.478 ]



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