Menu
Home
People
Places
Arts
History
Plants & Animals
Science
Life & Culture
Technology
Reference.org
DIOP
open-in-new
<p>DIOP (2,3-<i>O</i>-isopropylidene-2,3-dihydroxy-1,4-bis(diphenylphosphino)butane) is an <a href="/facts/Organophosphorus_compound/kNgIF93U">organophosphorus compound</a> that is used as a <a href="/facts/Chiral_ligand/yeaTGaRC">chiral ligand</a> in <a href="/facts/Asymmetric_catalysis/5hJe37TL">asymmetric catalysis</a>. It is a white solid that is soluble in organic solvents. </p><p>DIOP is prepared from the <a href="/facts/Acetonide/BzJAu5tS">acetonide</a> of <i>d,l</i>-<a href="/facts/Tartaric_acid/GbRWxTz4">tartaric acid</a>, which is reduced prior to attachment of the PPh2 substituents. </p>