Cycloalkenes chirality transfer

Chirality transfer in cycloalkenes is a more common practice. Equations (60)-(62) illustrate stereoselective syntheses of cyclohexenols. Similar functionalizations of medium-sized rings are also known (10-membered and 14-membered ). The many different ways to access allylic sulfoxides make their rearrangements a particularly versatile tool. 

The asymmetric transesterification of cyclic me o-diols, usually with vinyl acetate as an irreversible acyl transfer agent, includes monocyclic cycloalkene diol derivatives, bicyclic diols, such as the ej o-acetonide in eq 12, bicyclic diols of the norbomyl type, andorganometallic l,2-bis(hydroxymethyl)ferrocenepossessing planar chirality. 

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