GRAPHICS
Mitsunobu reaction of an alcohol ROH with a carboxylic acid, phthalimide, o
r N-hydroxyphthalimide (NuH) using DNAD (4) and (diphenylphosphino)polystyr
ene (11) gave the products RNu, Ring opening metathetic polymerization of t
he side product DNADH(2) (3) using Cl-2(Cy3P)(2)Ru=CHPh (13) and filtration
, to remove poly(DNADH(2)), (diphenylphosphino)polystyrene 11, its oxide, a
nd its adduct with excess DNAD, gave RNu (43-100%, 88-96% purity) without r
ecourse to chromatography.