112790-12-2

Upstream product

• 53356-73-3 dichloro(2,4,6-tri-isopropylphenyl)phosphane 
• 150331-74-1 chloro(bromo)(2,4,6-triisopropylphenyl)phosphane 
• 592-41-6 1-hexene 
• 501-65-5 diphenyl acetylene 
• 87437-11-4 dibromo(2,4,6-triisopropylphenyl)phosphane 
• 21524-34-5 2,4,6-triisopropyl-1-bromobenzene 
• 112438-22-9 (2,4,6-triisopropylphenyl)phosphine 
• 68357-99-3 mesityl[bis(trimethylsilyl)]phosphine 
• 133745-08-1 2,4,6-tri-isopropylphenyldilithiophosphide 
• 100-52-7 benzaldehyde 
• 79074-00-3 2,4,6-tri-t-butylphenylphosphonous dichloride 
• 2051-90-3 Dichlorodiphenylmethane 

Relevant academic research and scientific papers

Potassium and Yttrium Complexes of a Rigid Bis-Phosphido POP-Donor Ligand

Dilithiation of 4,5-dibromo-2,7-di-tert-butyl-9,9-dimethyl-xanthene (XBr2) followed by addition of 2 equiv. of (2,4,6-triisopropylphenyl)dichlorophosphine (TrippPCl2) afforded 4,5-bis[(2,4,6-triisopropylphenyl)chlorophosphino]-2,7-di-tert-butyl-9,9-dimethylxanthene (XP2Cl2), which was reduced to 4,5-bis[(2,4,6-triisopropylphenyl)phosphino]-2,7-di-tert-butyl-9,9-dimethylxanthene (H2XP2) using excess LiAlH4. Deprotonation of H2XP2 with excess KH in DME provided the dipotassium salt, [K2(XP2)(dme)n] (1; n = 2.5–4), and stirring 1 in THF followed by recrystallization from hexanes yielded tetrametallic [K4(XP2)2(THF)4] (2) which features a central K4P4 cage. Reaction of [YI3(THF)3.5] with [K2XP2(dme)2.5] afforded a mixture of products including [(XP2)YI(THF)2] (3) and (PTripp)3; pure 3 could be isolated in low yield by extraction with a minimum volume of hexanes or O(SiMe3)2. In the solid state, 3 adopts a face-capped trigonal bipyramidal coordination geometry with a planar xanthene backbone and an angle of 85° between the P(1)/C(4)/C(5)/P(2) and P(1)/Y/P(2) planes.

Phosphine-catalysed reductive coupling of dihalophosphanes

Classically tetraaryl diphosphanes have been synthesized through Wurtz-type reductive coupling of halophosphanes R2PX or more recently, through the dehydrocoupling of phosphines R2PH. Catalytic variants of the dehydrocoupling reactio

A selective route to aryl-triphosphiranes and their titanocene-induced fragmentation

Triphosphiranes are three-membered phosphorus cycles and their fundamental reactivity has been studied in recent decades. We recently developed a high-yielding, selective synthesis for various aryl-substituted triphosphiranes. Variation of the reaction co

Electrocatalytic reduction of aryldichlorophosphines with the (2,2′-bipyridine)nickel complexes

The reduction of aryldichlorophosphines in organic solvents was studied by cyclic voltammetry, preparative electrolysis, and chemical reduction. The reaction of the electrochemically generated (2,2′-bipyridine)nickel(0) complexes with aryldichlorophosphines PhPCl2 and tippPCl2 (tipp is 2,4,6-triisopropylphenyl) proceeds through the formation of highly reactive organophosphorus intermediates, whose reactions with diphenylacetylene and hex-1-ene afford phosphirene and phosphirane heterocycles, respectively.

'Phospha-Wittig' reactions using isolable phosphoranylidenephosphines ArP=PR3 (Ar = 2,6-Mes2C6H3 or 2,4,6-But3C6H2)

Phosphoranylidenephosphines DmpP=PMe3 (1a, Dmp = 2,6-Mes2C6H3) and Mes*P=PMe3 (1b, Mes* = 2,4,6-But3C6H2) act as 'Phospha-Wittig' reagents with aldehydes pr

Phosphasilene synthesis and reactivity: an improved route to 1-(2,4,6-tri-tert-butylphenyl)-2-tert-butyl-2-(2,4,6-tri-isopropylphenyl)phosphasilene

A new route was developed for the synthesis of a specific phosphasilene, 1-(2,4,6-tri-tert-butylphenyl)-2-tert-butyl-2-(2,4,6-tri-isopropylphenyl)phosphasilene (1e).Several novel phosphasilenes (1) with various substituents on phosphorus have been synthesized.The influence of the substituents on the phosphorus and silicon chemical shifts and the stability of the phosphasilenes is analyzed.The chemical reactivity of 1e has been investigated.

Transition Metal Functionalized Phosphaarsenes (η5-C5H4R)-(CO)(PPh3)Fe-As=P-C6H2(tBu)3(2,4,6) (R=H, Me) and 1,3,2,4-Diphosphadiarsetanes 5-C5Me5)(CO)2Fe-As-P-C6H2Me3(2,4,6)>2

The transition metal substituted phosphaarsenes (η5-C5H4R)-(CO)(PPh3)Fe-As=P-C6H2(tBu)3(2,4,6) (R=H, CH3) (2a,b) are formed in the reaction of (η5-C5H4R)(CO)(PPh3)Fe-As-(SiMe3)2 (1a,b) with 2,4,6-(tBu)3C6H2PCl2 (ArPCl2).Treatment of (η5-C5Me5)(CO)2FeAs(SiMe3)2 with 2,4,6-Me3C6H2PCl2 (MesPCl2) affords the first transition metal functionalized 1,3,2,4-diphosphadiarsetane (6), which is completely characterized by single crystal X-ray diffraction analysis.

STABLE UNSYMMETRICAL DIPHOSPHENES

Variation of the ortho-alkyl substituents in diaryldiphosphenes revealed that their stability is determined by steric hindrance.By suitable combinations of ortho-substituents, it was therefore possible to prepare the first relatively stable unsymmetrical