Neighboring Effect of a Carbonyl Group in Base-Induced Wittig-Type Rearrangements of Poly(4-nitrobenzyloxy)tropones to Bis- and Mono(α-hydroxy-4-nitrobenzyl)tropones

Article abstract of DOI:10.1246/bcsj.64.3306

The base-catalyzed rearrangement of bis- and tris(4-nitrobenzyloxy)tropones gave (α-hydroxy-4-nitrobenzyl)tropones through a Wittig-type mechanism.Only the 4-nitrobenzyloxy group adjacent to the carbonyl group migrated.The carbonyl group played a role in