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N-Propylphosphonic anhydride

Durette et al. [74] have achieved the total synthesis of the hexadepsipeptide antibiotic L-156,602 128) using the mixed phosphonic anhydride method as key macrolactamization step. As shown in Scheme 43, treatment of the linear depsipeptide 126 with n-propylphosphonic anhydride and DMAP in dichloro-methane at high dilution afforded the macrocycle 127 in more than 57% yield. [Pg.135]

PEPTIDES Bis(o-nitrophenyl)phenyl-phosphonate. Dicyclohexylcarbodi-imide. Diphenyl N-succinimidyl phosphate. N-Methyl-N-phenylbenzohydra-zonyl bromide. n-Propylphosphonic anhydride. Trifluoromethanesulfonic acid-Thioanisole. [Pg.242]

An efficient method for the Beckmann rearrangement of ketoximes and aldoximes (659) to amides/lactams (661) and nitriles (662) catalysed by the cyclic n-propylphosphonic anhydride (660), has been described by Mandal et al. (Scheme 166). ... [Pg.161]

See other pages where N-Propylphosphonic anhydride is mentioned: [Pg.391]    [Pg.438]    [Pg.58]    [Pg.274]    [Pg.391]    [Pg.391]    [Pg.438]    [Pg.58]    [Pg.274]    [Pg.391]    [Pg.333]    [Pg.438]    [Pg.89]   
See also in sourсe #XX -- [ Pg.333 ]

See also in sourсe #XX -- [ Pg.333 ]



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Propylphosphonic anhydride

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