简介：Homochiralcis,cis-;cis,trans-andtrans,trans-spiro[4.4]nonane-1,6-diolswerepreparedviadiastereoselectivereductionofenantiomericallypurespiro[4.4]nonane-1,6-dione(1)withthecorrespondingreducingagents:lithiumn-butyldiisobutylaluminiumhydrideforcis,cis-diol(2)with88%yield;BH3·THFforcis,trans-diol(3)with91%yield;LiAlH4fortrans,trans-diol(4)with15%yield.
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![Synthesis of homochiral spiro[<b style='color:red'>4.4</b>] nonane-1,6-diols](/image/thesis0 "Synthesis of homochiral spiro[<b style='color:red'>4.4</b>] nonane-1,6-diols")
