Reformatskii condensation

Raney nickel, 253 Reformatskii condensation, 30 Reformatskii reaction. 60,78-79 von Richter synthesis, 244 Ritter reaction, 94, 126-127 Rosenmund reduction, 50... 

Moriwake, T. Reformatskii reaction. I. Condensation of ketones and tert-butyl bromoacetate by magnesium. J. Org. Chem. 1966, 31, 983-985. 

Reformatskii reaction. Condensation of carbonyl compounds with organozinc derivatives of a-halo esters to yield (i-hydroxy esters. 

Two methods of synthesis of the acid (5) from 6-methoxy-l-tetralone (8), formed in two stages from nerolin (7) [139-142], have also been proposed. One of them [143, 144], like that just described above, is based on the introduction of the and 0 2 atoms by the Reformatskii reaction of the ketone (8). The ester formed (10) is converted into the bromide (11) and the 0 3 and 0 4 atoms are introduced by the condensation of the latter with sodiomalonic ester and decarboxylation. Dehydrogenation of the resulting acid (12) gives the acid (5). According to the other method for synthesizing this acid [140], the acids are introduced in one stage... 

Condensation reactions such as the Reformatskii reaction, Perkin reaction, malonic ester synthesis, and the Diels-Alder reaction afford acids or their esters in good yields. 

A Reformatskii reagent may be regarded as a zinc enolate and is useful for selectivity in cross condensation reactions. 

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