5575-51-9

Upstream product

• 67-64-1 acetone 
• 64-17-5 ethanol 
• 7803-57-8 hydrazine hydrate 
• 14774-78-8 4-chlorophenyl lithium 
• 7440-69-9 bismuth 
• 7787-60-2 bismuth(III) chloride 
• 34220-01-4 di-(4-chlorophenyl)iodonium chloride 
• 50847-99-9 Phenyl-(p-chlorphenyl)iodoniumchlorid 
• 673-41-6 p-chlorobenzenediazonium tetrafluoroborate 
• 131836-81-2 Bi(O₂SC₆H₄-p-Cl)3 
• 77760-10-2 (p-ClC₆H₄)3BiCl₂ 
• 20667-12-3 silver(l) oxide 
• 1123181-64-5 tetrakis(4-chlorophenyl)bismuthonium tetrafluoroborate 
• 1123181-69-0 tris(4-chlorophenyl)mesitylbismuthonium tetrafluoroborate 

Downstream Products

• 2050-68-2 4,4'-dichlorobiphenyl 
• 90-98-2 4,4'-Dichlorobenzophenone 
• 108-90-7 chlorobenzene 
• 637-87-6 1-Chloro-4-iodobenzene 
• 5002-07-3 4'-(4-chlorophenyl)acetophenone 
• 4153-45-1 2-(4-chlorobenzoyl)thiophene 
• 92-52-4 biphenyl 
• 2051-62-9 4'-biphenyl chloride 
• 121900-03-6 tris(4-chlorophenyl)bismuth diacetate 
• 74-11-3 para-chlorobenzoic acid 
• 121900-07-0 (p-ClC₆H₄)2BiI 
• 77760-10-2 (p-ClC₆H₄)3BiCl₂ 
• 861309-46-8 (p-ClC₆H₄)2BiBr 

Relevant academic research and scientific papers

Remarkable substituent effects on the oxidizing ability of tetraarylbismuthonium tetrafluoroborates in alcohol oxidation

Substituent effects on the oxidizing ability of tetraarylbismuthonium tetrafluoroborates in alcohol oxidation are reported. Intermolecular and intramolecular competition experiments on geraniol oxidation by the combined use of tetraarylbismuthonium tetrafluoroborates and N,N,N′,N′- tetramethylguanidine (TMG) have revealed that the oxidizing ability of the bismuthonium salt increases by the introduction of methyl groups at the ortho position and an electron-withdrawing group at the para position of the aryl ligands. The intermolecular and intramolecular H/D kinetic isotope effects observed for the competitive oxidation of p-bromobenzyl alcohols have shown that the present oxidation reaction consists of fast pre-equilibrium leading to alkoxytetraarylbismuth(V) intermediates (first step) and α-hydrogen abstraction by the aryl ligand attached to the bismuth (second step). The experimental results demonstrate that the electron-deficient aryl ligands enhance the electrophilicity at the bismuth center to put forward the first step and that the bulky ligands destabilize the alkoxybismuth(V) intermediates to accelerate the second step. The newly explored mesityl- and 2,6- xylyltriarylbismuthonium salts have proven to convert primary and secondary alcohols to the corresponding carbonyl compounds with high efficiency under mild conditions. A remarkable steric effect of these oxidants has also been exhibited in the chemoselective oxidation between primary and secondary benzylic alcohols.

4-ARYLMORPHOLIN-3-ONE DERIVATIVES, THEIR PREPARATION AND THERAPEUTIC USE THEREOF

The invention relates to compounds corresponding to formula (I): in which: Ar represents a mono- or disubstituted phenyl; R1 represents an unsubstituted or substituted phenyl; R2 represents: a pyridyl; an unsubstituted or substituted phenyl; a benzyl that is unsubstituted or substituted on the phenyl; R2 may moreover represent: a heterocyclic radical; R3 represents various values. The invention also comprises methods for the compounds preparation, formulations comprising them and therapeutic applications thereof.

DIHYDRONEPETALACTAMS AND N-SUBSTITUTED DERIVATIVES THEREOF

Dihydronepetalactams and N-substituted derivatives thereof are prepared by alkylation of metallated lactams. Dihydronepetalactams and N-substituted derivatives thereof have utility as insect repellents.

Nepetalactams and N-substituted derivatives thereof

Nepetalactams and N-substituted derivatives thereof are prepared by alkylation of metallated lactams. Nepetalactams and N-substituted derivatives thereof have utility as insect repellents.

Palladium(II)-catalyzed aryl coupling of triarylbismuthines under air

Triarylbismuthines readily reacted with a catalytic amount of palladium(II) acetate in methanol under air to give the corresponding biaryls in high yields. The presence of oxygen was indispensable for this catalytic coupling, biaryl formation being quite slow under nitrogen. Oxygen absorption was observed during the reaction and a Pd-oxygen complex prepared separately worked effectively as a reagent for this coupling even under inert gas.