hypochlorite and bis(tributyltin) oxide. The reaction proceeded efficiently undermildconditions, in which O-stannylated aldoximes 2 are thought to be key intermediates. This reaction system was applicable to the one-pot syntheses of isoxazole derivatives 4 and 5 in the presence of dipolarophiles via a [3 + 2] cycloaddition.
PCC-Promoted Dehydration of Aldoximes: A Convenient Access to Aromatic, Heteroaromatic, and Aliphatic Nitriles
作者:S. Chandrappa、T. S. R. Prasanna、K. Vinaya、D. S. Prasanna、K. S. Rangappa
DOI:10.1080/00397911.2012.738459
日期:2013.10.18
A simple and convenient procedure for the synthesis of nitriles by dehydration of aldoximes using a PCC (pyridiniumchlorochromate) has been developed. A variety of aromatic, heteroaromatic, and aliphatic aldoximes are converted. Supplementary materials are available for this article. Go to the publisher's online edition of Synthetic Communications (R) for the full spectral details.
Ionic liquid-promoted dehydration of aldoximes: a convenient access to aromatic, heteroaromatic and aliphatic nitriles
作者:Debasree Saha、Amit Saha、Brindaban C. Ranu
DOI:10.1016/j.tetlet.2009.08.069
日期:2009.11
A simple and convenient procedure for the synthesis of nitriles by dehydration of aldoximes using an ionic liquid, 1-pentyl-3-methylimidazolium tetrafluoroborate, [pmim]BF4 under organic solvent-free condition, has been developed. A variety of aromatic, heteroaromatic and aliphatic aldoximes are converted to the corresponding nitriles. The ionic liquid is recovered and reused for subsequent reactions