Ring closing metathesis, tethered

For the synthesis of C2-symmetric 1,4-diol, Evans planned temporary silicon-tethered ring-closing metathesis, and asymmetric synthesis of D-altritol was... 

Harrison, B. A., Verdine, G. L. The synthesis of an exhaustively stereo-diversified library of cis-1,5 enediols by silyl-tethered ring-closing metathesis. Org. Lett. 2001, 3, 2157-2159. 

Methodology and natural product synthesis by temporary silicon-tethered ring-closing metathesis 12CEJ5800. 

Ring-closing metathesis can be used to couple together two separate alkenes. Provided that the alkenes contain a functional group such as an alcohol, they can be tethered together via an atom such as silicon (Scheme 8.67). RCM can then be used. If desired, the two Si-0 bonds can be cleaved later.Phosphate... 

SCHEME 38 Ring-closing metathesis reaction of ester-tethered dienes. 

Evans PA, Cui J, Buffone GP. Diastereoselective temporary silicon-tethered ring-closing-metathesis reactions with prochiral alcohols a new approach to long-range asymmetric induction. Angew. Ghem. Int. Ed. 2003 42 1734-1737. 

Temporary Silicon-Tethered Ring-Closing Metathesis Reactions in Natural Product Synthesis... 

Temporary Silicon—Tethered Ring—Closing Metathesis Reactions I 233... 

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