19966-81-5

Basic information

• Product Name: Phosphine, dicyclohexyl-, lithium salt
• CAS NO: 19966-81-5
• Molecular Formula: C12H23P.Li
• Molecular Weight: 204.221
• Mol File: 19966-81-5.mol
• Article Data: 9

Chemical Properties

• CAS DataBase Reference: Phosphine, dicyclohexyl-, lithium salt(CAS DataBase Reference)
• NIST Chemistry Reference: Phosphine, dicyclohexyl-, lithium salt(19966-81-5)
• EPA Substance Registry System: Phosphine, dicyclohexyl-, lithium salt(19966-81-5)

Safety Data

• Hazardous Substances Data: 19966-81-5(Hazardous Substances Data)

Upstream product

• 829-84-5 dicyclohexylphosphane 
• 109-72-8 n-butyllithium 

Downstream Products

• 17017-34-4 <2-Hydroxy-ethyl>-dicyclohexyl-phosphin 
• 4848-45-7 2-(dicyclohexylphosphino)ethylamine 
• 2360-11-4 3-Hydroxy-propyl-dicyclohexyl-phosphin 
• 19966-99-5 dicyclohexyl(p-tolyl)phosphine 
• 832-39-3 dicyclohexylphosphinic acid 
• 2359-99-1 tetracyclohexyldiphosphine 
• 829-84-5 dicyclohexylphosphane 
• 2360-08-9 Dicyclohexyl-(2-hydroxy-cyclohexyl)-phosphin 
• 83286-46-8 3-dimethylaminopropyldicyclohexylphosphine 
• 202843-37-6 lithium [(dicyclohexylphosphino)ethyl]cyclopentadienide 
• 86013-27-6 hafnocene di((Cy₂)phosphide) 
• 137566-82-6 anti-1,2-W₂(NMe₂)4(PCy₂)2 
• 116212-38-5 1,2-W₂(NMe₂)4(P-t-Bu₂)(PCy₂) 
• 116025-85-5 tert-butylbis(3-diphenylphosphinopropyl)phosphine(dicyclohexylphosphido)rhodium(I) 

Relevant articles and documents

Room-temperature reduction of sulfur hexafluoride with metal phosphides

Upon treatment with sulfur hexafluoride, alkali metal diphenyl or dicyclohexyl phosphides are oxidized within seconds to tetraphenyl or tetracyclohexyl diphosphines. When bulky di-tert-butylphosphide is employed, fluorophosphine intermediates are detected. This is the first reported reaction of sulfur hexafluoride with metal phosphides, and a rare example of reactivity of sulfur hexafluoride at ambient temperature. This journal is

'Click' Dendritic phosphines: Design, synthesis, application in Suzuki coupling, and recycling by nanofiltration

A new synthetic route towards stable molecular-weight enlarged monodentate phosphine ligands via 'click' chemistry was developed. These ligands were applied in the Pd-catalyzed Suzuki-Miyaura coupling of aryl halides and phenyl boronic acid. The supported systems show very similar activities compared to the unsupported analogues. Moreover, recycling experiments by means of nanofiltration using ceramic nanofiltration membranes demonstrate that these systems can be recovered and reused efficiently.

Palladium catalysed alkyne hydrogenation and oligomerisation: A parahydrogen based NMR investigation

The role phosphine ligands play in the palladium(ii)-bis-phosphine-hydride cation catalysed hydrogenation of diphenylacetylene is explored through a PHIP (parahydrogen induced polarization) NMR study. The precursors Pd(LL′)(OTf)2 (1a-e) [LL′ = dcpe (PCy2CH 2CH2PCy2), dppe, dppm, dppp, cppe (PCy 2CH2CH2PPh2)] are used. Alkyl palladium intermediates of the type [Pd(LL′)(CHPhCH2Ph)](OTf) (2 and 3) are detected and demonstrated to play an active role in hydrogenation catalysis. Magnetization transfer experiments reveal chemical exchange from the α-H of the alkyl ligand of 2a (LL′ = dcpe) and linkage isomer 2e′ (LL′ = cppe) into trans-stilbene on the NMR timescale. Activation parameters (ΔH≠ and ΔS≠) for this transformation have been determined. These experiments, coupled with GC/MS data, indicate that the catalytic activity is greater in methanol, where it follows the order: dcpe > cppe > dppp > dppe > dppm, than in CD 2Cl2. All five of the phosphine systems described are less active than those based on bcope [where bcope is (C8H 14)PCH2-CH2P(C8H14)] and tbucope [where tbucope is (C8H 14)PC6H4CH2P(tBu) 2]. cis, cis-1,2,3,4-Tetraphenyl-buta-1,3-diene is detected as a minor reaction product with Pd(LL′)(PhCH-CHPh-CPh=CHPh)+ (4) also being shown to play a role in the alkyne dimerisation step.