作者:Henri A. van Kalkeren、Jorick J. Bruins、Floris P. J. T. Rutjes、Floris L. van Delft
DOI:10.1002/adsc.201100967
日期:2012.5.21
The first Staudingerreduction that is catalytic in phosphine has been developed, showing excellent yields and functional group selectivity. To this end we utilised dibenzophosphole catalysts and mild in situ reduction of the intermediate iminophosphoranes. We could avoid the necessity of water during the reduction, obtained no phosphine oxides as waste and thus enabled facile purification of the product
π-Insertion Reactions of Benzynes into P=N and P=S Double Bonds
作者:Carmen Lopez-Leonardo、Rosalia Raja、Fernando López-Ortiz、Miguel Ángel del Águila-Sánchez、Mateo Alajarin
DOI:10.1002/ejoc.201301481
日期:2014.2
The π-insertion reactions of in situ generated benzynes into the P=N bonds of N-benzyl and N-aryl iminophosphoranes and the P=S bonds of phosphane sulfides have been examined by using the Kobayashi benzyne precursors, (2-trimethylsilyl)phenyl triflates. The reactions with iminophosphoranes afforded (2-aminophenyl)phosphonium triflates under mild conditions, most probably by a [2+2]/retro [2+2] cycloaddition
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 more critical role for silicon in the catalytic Staudinger amidation: silanes as non-innocent reductants
作者:Keith G. Andrews、Ross M. Denton
DOI:10.1039/c7cc03076b
日期:——
We demonstrate that in situ-generated silyl ester intermediates are key mediators of the catalytic, traceless Staudinger amidation reaction.
我们展示了原位生成的硅酯中间体是催化的、无痕迹的施陀林酰胺化反应的关键中介体。
Synthetic and Mechanistic Studies of the Aza-Retro-Claisen Rearrangement. A Facile Route to Medium Ring Nitrogen Heterocycles
作者:Robert K. Boeckman、Nathan E. Genung、Ke Chen、Todd R. Ryder
DOI:10.1021/ol100397q
日期:2010.4.2
medium-sized heterocyclicrings was achieved using a one-pot aza-Wittig/retro-aza-Claisen sequence of vinyl cyclobutanecarboxaldehydes derived from simple allylic carbonates. The use of various Staudinger reagents in the aza-Wittig reaction allows for a variety of N-substituted products to be obtained. The rearrangement is under thermodynamic control driven by relief of the cyclobutane ring strain and