Iminophosphines synthesis

Williams, D.B.G., Traut, T, Kriel, F.H. and van Zyl, W.E. (2007) Bidentate amino-and iminophosphine ligands in mono-and dinuclear gold(I) complexes Synthesis, structures and AuCl displacement by AuC E . Inorganic Chemistry Communications, 10(5), 538-542. 

Ferrocenyl-iminophosphines, chiral, synthesis, 6, 204 l-(Ferrocenyl)indenyl ligands, in Ir complexes, 7, 386 Ferrocenylketimines, cyclopalladated, synthesis, 8, 286... 

Recently, Majoral et al. described the synthesis of a third-generation phosphorus-containing dendrimer possessing 24 chiral iminophosphine end groups derived from (2S)-2-amino-l-(diphenylphosphinyl)-3-methylbutane (Fig. 11) [32]. The dendritic catalyst was tested in allylic substitution reactions, using rac-(.E)-diphenyl-2-propenyl acetate or pivalate as substrates. The observed enantioselectivities were good to excellent (max. 95% ee) in all reactions. After completion of the catalytic reaction, the catalyst could be reused at least twice after precipitation and filtration. A slight decrease... 

Some cyclic four- and five-membered inorganic rings may contain two-coordinate phosphoras. Their synthesis is based on cycloaddition reactions of amino-iminophosphines or alkyl azides to imtnophospheninm cations (Scheme 44). ... 

Scheme 5 Synthesis of iminophosphine ligands by Schiff base condensation...

SYNTHESIS AND APPLICATION IN PALLADIUM-CATALYSED ASYMMETRIC ALLYLIC SUBSTITUTION OF ENANTIOPURE CYCLIC p-IMINOPHOSPHINE LIGANDS... 

Considerable research effort has been focused on the preparation of compounds of biochemical interest, using electrophilic reactions of phosphoramidites and phosphorochloridites to prepare modified phosphates of nucleosides or lipids. Intense interest has been shown in the synthesis of myoinositol phosphates, and also of aminoalkylphosphonic acids and their derivatives and analogues. Away from the biological emphasis, however, the first (recorded) syntheses of acetylenic phosphates have been described, and so have the first 1-alkoxyphosphole, the first cis amino-iminophosphine, and the first dithiaphospholium ions ex Phosphorus semper aliquid novi The use of silyl phosphites for synthetic purposes seems to be an increasing trend, while the number of papers on metaphosphate seems to be in decline. 

The iminophosphine (134) with 1-alkynes gave various products of 1,1- or 1,2-additions. A new synthesis of diphosphenes (135) from aryldichlorophosphines and a tungsten complex has been described the tungsten complex catalysed an exchange between two diphosphenes to give the unsymmetric diphosphene. A ferrocenyl-substituted diphosphene (136) has been prepared which seems to represent a borderline case with respect to dimerisation thus the dimer (137) readily dissociates to (136) upon heating in xylene. 

Amino and Iminophosphine Chloro Ruthenium Precatalysts Synthesis. 54... 

In work by the same research group, the synthesis of chiral ferrocenyl-iminophosphines of the type 47 has been... 

The synthesis of iminophosphine oxides through the addition of secondary phosphine oxides to isocyanides has been reported by Han (Schane 4.331) [94]. A range of metal catalysts were screened for activity towards the addition reaction, and Pd dbaj was found... 

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