Abstract
Addition of magnesium acetylides in the presence of chloroformate esters to racemic differently O-protected 2-(4-quinolyl)propanols and to enantiopure 2-(4-quinolyl)-1,3-dialkoxypropanes, prepared by a chemoenzymatic route, gives almost exclusive regioselective attack at C-2, with stereoselectivities from moderate to good, depending mainly on the bulkiness of the O-protecting group present.
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