OHHO C3H7CHOOH OH OHOH OHO OOHHH OOHHOOHH H OOHHHOOH OOHH2OOOHOCH3OHCH3 OCH3Cis-1,4-Dihydroxy-2-butene react with butanal to 2-propyl-4,7-dihydro-1,3-dioxepine1.Protonation. 2.Alcohol adds and deprotonation.3.Protonation and loss of water.4.Second alcohol adds and deprotonation.
