Phospha-Brook rearrangement

ElKaim, L., Gaultier, L., Grimaud, L. and Dos Santos, A. (2005) Formation of new phosphates from aldehydes by a DBU-catalysed phospha-Brook rearrangement in a polar solvent. Syrdett, 2335-2336. [Pg.91]

Catalytic enantioselective protonation of a-oxygenated ester enolates has been achieved via a phospha-Brook rearrangement, using a simple phosphite and a cinchona catalyst the process converts R R-C=0 R R C H-0P(0)(0Ar)2." ... [Pg.44]

Intramolecular cyclisation of allgmyl a-ketoanilides (8) utilising the [l,2]-phospha-Brook rearrangement catalysed by a phosphazene base (12) has been developed by Terada and co-workers. Reactions involved a... [Pg.198]

Hayashi M, Nakamura S. Catal)Tic enantioselective protonation of a-oxygenated ester enolates prepared through phospha-Brook rearrangement. Angew. Chem. Int. Ed. 2011 50 2249-2252. [Pg.992]

Hayashi and Nakamura have reported a synthesis of optically active phosphoric esters (135) through the catalytic, enantioselective protonation of a-phosphonyloxy enolates, which were prepared in situ from the nucleophilic addition reaction of diaryl phosphites (134) to a-ketoesters (133) and a subsequent phospha-Brook rearrangement (Seheme 35). ... [Pg.104]

SCHEME 31.43. Rearrangements involving an enantioselective proton transfer. Phospha-Brook... [Pg.984]

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