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Benzoin and Related Reactions

In the benzoin condensation, both aromatic and heterocyclic aldehydes are transformed into a-hydroxy ketones of the general formula ArCHOHCOAr, often called benzoins. This class of compounds is frequently encountered in natural products, hence the benzoin and related reactions have received much at-tention. The reaction employs a cyanide ion as the catalyst and the mechanism, proposed by Lapworth, involves formation of carbanions stabilized by the nitrile group (Scheme 1). [Pg.542]

FIGURE 20.5 Applications of the benzoin and related reactions in synthesis. [Pg.944]

The Benzoin and Related Acyl Anion Equivalent Reactions... [Pg.543]

See other pages where Benzoin and Related Reactions is mentioned: [Pg.1315]    [Pg.1315]    [Pg.2606]    [Pg.1315]    [Pg.1982]    [Pg.113]    [Pg.1315]    [Pg.1315]    [Pg.2606]    [Pg.1315]    [Pg.1982]    [Pg.113]   


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