In the title solvated phosphonium salt, C34H40P(+)·Cl(-)·2CHCl3, the two cyclo-hexyl and two 1-naphthyl-methyl groups at the P atom are in a distorted tetra-hedral arrangement [105.26 (6)-113.35 (6)°]. Both cyclo-hexyl rings adopt a chair conformation. The dihedral angle between the naphthyl ring systems is 74.08 (3)°.

A new class of highly fluorinated phosphonium ionic liquids (HFPILs) that are thermally stable, non-volatile, tuneable small molecules has been synthesized; they are uniquely suited for creating novel superhydrophobic coatings, offering a new paradigm in the application of ionic liquids.

Ten different coupling reagents and their combinations were tested in parallel in the synthesis of four model peptide sequences. Significant differences were found between uronium and phosphonium salt-based reagents and carbodiimide. Diisopropylcarbodiimide was identified as an optimal reagent based on the purity of the product, stability of the reagent, and convenience of handling on plate-bas...

Ketones are efficiently deoxygenated in the presence of silane using highly electrophilic phosphonium cation (EPC) salts as catalysts, thus affording the corresponding alkane and siloxane. The influence of distinct substitution patterns on the catalytic effectiveness of several EPCs was evaluated. The deoxygenation mechanism was probed by DFT methods.

The crystal structure of the title compound, (C(25)H(21)ClP)(2)[ZnCl(4)]·3H(2)O, consists of tetra-hedral phosphonium cations and tetra-hedral zincate anions; the water mol-ecules form weak hydrogen bonds to the anions. Two of the water mol-ecules are disordered over three sites in a 0.68:0.55:0.77 ratio.

Z-Enediynes are prepared by a vicinal dialkynylation of triaryl(arylethynyl)phosphonium cations. The method, which proceeds under mild transition metal-free conditions, can be conducted on multigram scale as a one-pot, phosphine-mediated synthetic cycle giving enediyne products with excellent control of configuration.

C–H activation of the methyl group of toluene and related ArCH3 derivatives by 2,3-dichloro-4,5-dicyano-1,4-benzoquinone (DDQ) gives insertion products, ArCH2O[C6Cl2(CN)2]OH via a rate-determining hydride abstraction by DDQ. The resulting benzylic ether can undergo reactions with phosphines to give benzylic phosphonium salts (Wittig reagents) and with phosphites to give phosphonate esters (Horn...

Reported here is the catalytic, acceptorless coupling of alcohols with in situ generated, non-stabilized phosphonium ylides to form olefins as major products. The reaction uses low catalyst loadings and does not require added oxidants. Hydrogenation of the product is minimized and the reaction leads to Z (aliphatic) or E (benzylic) stereospecificity.

The carboxyl-functionalized phosphonium ionic liquid (IL), [HCTMP][Tf(2)N], enabled the directed nucleation of monomeric or dimeric uranyl(vi) compounds. This new IL is the first carboxyl-functionalized IL which is liquid at room temperature and exhibits a wider electrochemical window and lower melting point than its ammonium analogue.