2369-26-8

Upstream product

• 23588-13-8 3-fluorophenyl phosphonic dichloride 
• 1073-06-9 3-fluorobromobenzene 
• 23588-07-0 diethyl (3-fluorophenyl)phosphonate 

Downstream Products

• 23588-13-8 3-fluorophenyl phosphonic dichloride 

Relevant academic research and scientific papers

The Dimeric Pyramidal Cu2O6(H2O)2Unit – A Structural Invariant of a Homologous Series of Copper-Layered Phosphonates

Two new layered copper hybrid materials, namely, the copper thiophene-2,5-diphosphonate [Cu2(H2O)2(O3P–C4H2S–PO3)] (Pnma; a = 7.525 ?, b = 18.292 ?, c = 7.520 ?) and the copper 3-fluorophenylphosphonate Cu(H2O)PO3–C6H4F (P21/c; a = 14.305 ?, b = 7.550 ?, c = 7.479 ?, β = 92.32°), have been synthesized. These compounds belong to the large homologous Cu(H2O)PO3R/[Cu2(H2O)2(O3P–R–PO3)] series, the structure of which is dictated by the presence of isolated dimeric pyramidal Cu2O6(H2O)2units. The role of the Cu/H2O molar ratio of 1 in the stabilization of such a structure is discussed in connection with the Jahn–Teller effect of the copper cation. The study of the magnetic behavior of polycrystalline samples of the two compounds has revealed antiferromagnetic coupling between the copper ions. The interactions within the dimeric unit were estimated by the Bleaney–Bowers law with the spin Hamiltonian H = –JSCu1SCu2+ gβHS: J = –6.27 cm–1for [Cu(H2O)PO3]2C4H2S, and J = –6.07 cm–1for Cu(H2O)PO3–C6H4F.

Synthesis and proton dissociation properties of arylphosphonates: A microwave-assisted catalytic arbuzov reaction with aryl bromides

A series of substituted diethyl arylphosphonates was synthesized by the microwave-assisted Arbuzov reaction of triethyl phosphite and aryl bromides in the presence of NiCl2 as the catalyst under solvent-free conditions in good yields. The resulting phosphonates were hydrolyzed to the corresponding arylphosphonic acids whose acidity was evaluated by physicochemical methods.

SYNTHESIS OF PHOSPHONIC DICHLORIDES AND CORRELATION OF THEIR P-31 CHEMICAL SHIFTS

Various mono-substituted diethyl arylphosphonates were prepared in good yield by treatment of aryl bromides or iodides with triethyl phosphite in the presence of NiCl2 or alternatively, addition of the aryl grignard reagent to diethyl phosphorochloridate.