Impurity annihilation:: Chromatography-free parallel Mitsunobu reactions

被引:67
作者
Barrett, AGM [1 ]
Roberts, RS [1 ]
Schröder, J [1 ]
机构
[1] Univ London Imperial Coll Sci Technol & Med, Dept Chem, London SW7 2AY, England
关键词
D O I
10.1021/ol006313g
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
GRAPHICS Mitsunobu reaction of an alcohol ROH with a carboxylic acid, phthalimide, or N-hydroxyphthalimide (NuH) using DNAD (4) and (diphenylphosphino)polystyrene (11) gave the products RNu, Ring opening metathetic polymerization of the 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, and its adduct with excess DNAD, gave RNu (43-100%, 88-96% purity) without recourse to chromatography.
引用
收藏
页码:2999 / 3001
页数:3
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