Do we have any acetal or silly ether protection for cyclic 1,5 diols like what we have for 1,3 and 1,4 diols?

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Teodoro S Kaufman

"silly ether???" Having a protective group for a 1,5 diol will mean to make an 8-member ring (or larger). These are difficult to make. Sometimes it is preferable to use the same PG forr bot of them and sometimes to explote their different reactivities and differentially protect them.