83466-54-0

Upstream product

• 16666-81-2 cyclohexyltriphenylphosphorane 
• 86120-24-3 (2,4,6-tri-tert-butyl)phenylmonochlorophosphane 
• 5599-27-9 dichloro(dimesityl)silane 
• 91443-42-4 <(2,4,6-tri-tert-butylphenyl)(trimethylsilyl)phosphino>lithium 
• 917-54-4 methyllithium 
• 102817-39-0 P-(2,4,6-tri-tert-butylphenyl)-P'-diphosphene 
• 594-19-4 tert.-butyl lithium 
• 28830-22-0 tris(trimethylsilyl)methyllithium 
• 35383-91-6 2,4,6-tri-tert-butylphenyllithium 
• 107839-25-8 P-chloro-P'-(2,4,6-tri-tert-butylphenyl)diphosphene 
• 100073-26-5 1-(2,4,6-tri-tert-butylphenyl)phosphirane 
• 88292-85-7 trans-1,2-bis(2,4,6-tri-t-butylphenyl)diphosphene 1-sulphide 
• 118475-65-3 (CH₃)3CNHPPC₆H₂(C(CH₃)3)3 
• 90599-65-8 2,3-bis(2,4,6-tri-t-butylphenyl)-1,2,3-selenadiphosphirane 

Downstream Products

• 89566-64-3 1,2-dibutyl-1,2-bis-(2,4,6-tri-t-butylphenyl)diphosphane 
• 84114-18-1 1-(2,4,6-tri-tert-butylphenyl)-1-phosphaethene 
• 106537-34-2 1,2-bis(2,4,6-tri-tert-butylphenyl)diphosphirane 
• 111888-02-9 1,2-bis(2,4,6-tri-tert-butylphenyl)3,3-dibromo diphosphirane 
• 136492-00-7 (2-Methyl-propenylidene)-(2,4,6-tri-tert-butyl-phenyl)-phosphane 
• 136491-99-1 (1R,2R)-3-Isopropylidene-1,2-bis-(2,4,6-tri-tert-butyl-phenyl)-diphosphirane 
• 111888-03-0 (1S,2S)-3-Bromo-3-phenyl-1,2-bis-(2,4,6-tri-tert-butyl-phenyl)-diphosphirane 
• 52961-95-2 2-phenoxy-2-oxo-4,5-benzo-1,3,2-dioxaphospholane 
• 107394-70-7 2,4,6-tri-tert-butylphenylphosphinic acid 
• 83115-12-2 (2,4,6-tri-tert-butylphenyl)phosphine 
• 86539-32-4 2,4,6-tri-tert-butylphenylphosphine oxide 
• 88765-95-1 1,3,5-Tri-tert-butyl-2-methylphosphinoyl-benzene 
• 86539-31-3 1-Methyl-1,2-bis-(2,4,6-tri-tert-butyl-phenyl)-diphosphane 
• 88765-94-0 C₃₇H₆₁P₂^(1-) 

Relevant academic research and scientific papers

Platinum(II) complexes of some unsymmetrical diphosphenes

Reaction of the unsymmetrical diphosphene Ar*P=PArF1 (Ar*?=?2,4,6-tBu3C6H2, ArF?=?2,4,6-(CF3)3C6H2) with the dimeric platinum(II) species trans-[Pt(PEt3)Cl(μ-Cl]2led initially to the formation of two different monomeric Pt(II) complexes trans-[Pt(PEt3)Cl2(Ar*P=PArF)] 2 and trans-[Pt(PEt3)Cl2(ArFP=PAr*)] 3, where the underlined phosphorus atom coordinates to Pt. These were readily identifiable by31P NMR solution-state spectroscopy, but attempts to separate them by column chromatography were unsuccessful. When the reaction was repeated on a larger scale, a third complex cis-[Pt(PEt3)Cl2(ArFP=PAr*)] 4 was detected in solution, with P-ArFbound to Pt. Calculations of energies and31P NMR chemical shifts confirm that this species is expected to be the thermodynamically most stable monomeric reaction product. For comparison, we have also prepared the analogous Pt(II) complex trans-[Pt(PEt3)Cl2(Ar*P=PAr*)] 6 of the symmetrical diphosphene Ar*P=PAr* 5, and obtained its31P NMR parameters in solution. The mixed diphosphene Ar′P=PArF7 (Ar′?=?2,6-(CF3)2C6H3) reacts with the same platinum(II) dimer to yield a single cis-complex 8. Calculations have enabled us to assign the31P chemical shifts of this unsymmetrical diphosphene 7, and to show that the Ar′ group is coordinated to Pt in the unique product cis-[Pt(PEt3)Cl2(Ar′P=PArF)] 8.

Isolation of a Highly Persistent Diphosphanyl Radical: The Phosphorus Analogue of a Hydrazyl

Stable for at least one week below -30°C: crystals of 1, the first highly persistent diphosphanyl radical, have been isolated and characterized. This phosphorus-centered radical exhibits hyperfine coupling whose anisotropy is considerably larger than that for well-established nitrogen radicals (hydrazyls nitroxides). This feature is of potential interest for studies of fast molecular movements. Mes =2,4,6-tBu3C6H2.

Synthesis and redox properties of a diphosphene carrying a redox-active sterically protecting group

The 2,6-dimesityl-4-[bis(4-methoxyphenyl)amino]phenyl group was developed as a sterically protecting group carrying a reversible redox site at the 4-position and was applied to the construction of a novel redox system composed of the diphosphene and triarylamine units.

Application of 1,2-bis(2-bromo-3,5-di-t-butylphenyl)ethane to preparation of compounds having two diphosphene units

A sterically crowded bromobenzene, 1,2-bis(2-bromo-3,5-di-t-butylphenyl)ethane, was prepared and converted to the corresponding phosphonous dichloride, which reacted with lithium (2,4,6-tri-t-butylphenyl)phosphide to give 1,2-bis[3,5-di-t-butyl-2-{(2,4,6-

Transition-metal Catalysed Metathesis of Phosphorus-Phosphorus Double Bonds

W(PMe3)6 is an efficient chloride ion abstracting reagent for the synthesis of RP=PR species from RPCl2 precursors; moreover, the W(PMe3)6-RPCl2 solutions catalyse the exchange of the diphosphene PR end-groups via a mechanism closely related to the olefin metathesis process.

GENERAL APPROACHES TO PHOSPHINIDENES VIA RETROADDITIONS

Retroadditions - thermal and photochemical decomposition of phosphiranes and 3-phospholenes - offer general routes to free phosphinidenes.

Sonochemistry in the diphosphirane series

Sonication improves substantially the rate of formation of diphosphene 1 with respect to standard procedures. The cyclopropanation of 1 using sonochemical generation of methylene or halogeno-carbenes constitutes an interesting alternative in the diphosphi

SOME NEW PROTECTIVE GROUPS FOR STABILIZING LOW COORDINATED PHOSPHORUS COMPOUNDS

Sterically stabilized diphosphenes and 1,3-diphosphaallenes by 2,4-di-t-butylphenyl or 2,4,6-tri-t-pentylphenyl groups were prepared.