An Efficient One-Pot Conversion of Alkyl Bromides Into Imines<i>Via</i>the Staudinger Reaction
作者:Petr Vaněk、Petr Klán
DOI:10.1080/00397910008087178
日期:2000.4
Abstract A new one-pot procedure for transforming primary alkyl bromides into the corresponding imines via the Staudinger reaction has been developed. Acetonitrile was found to be an excellent solvent for azidation as well as the reaction of organic azide with triphenylphosphine and a carbonyl compound.
A Simple One-Pot Method for the Preparation of Allyl Azides from Allyl Alcohols Using Triphosgene: Synthesis of<i>N</i>1-Cinnamyl Azetidin-2-ones
作者:A. R. Deshmukh、A. Jayanthi、V. K. Gumaste
DOI:10.1055/s-2004-820046
日期:——
A simple and efficient one-pot method for the preparation of allyl azides fromallylalcohols using triphosgene and sodium azide is described. An application of cinnamyl azide for the synthesis of various Nl-cinnamyl azetidin-2-ones is also described.
One-pot conversion of allyl azides into 4-pentenenitriles 4 is achieved by sequential treatment of allyl azides with triphenylphosphine and the corresponding ketene under mild and neutral conditions. On the other hand, allyl iminophosphoranes and related react with arylacetic acid chlorides to give unexpectedly the phosphonium salts 5 which by treatment with base and then heating lead to 4-pentenenitriles 9.
Iminophosphorane-mediated one-pot conversion of allyl azides into α-allylated nitriles by a consecutive staudinger reaction/ aza-wittig reaction/3-aza-claisen rearrangement process
One-pot conversion of allyl azides 1 into nitriles 3 under mild and neutral conditions is reported. The method involves sequential treatment of 1 with triphenylphosphine and the corresponding ketene to give 3.
Palladium(0)-catalyzed azidation of allyl esters. Selective synthesis of allyl azides, primary allylamines, and related compounds