Preparation and Reactivity of Some New Diazaphospholine Compounds

Abstract

A reaction of cyclohexanone phenylhydrazone with (het)aryldihalogenophosphines has been studied. Cyclohexanone phenylhydrazone reacts with phenyldichlorophosphine and 5methyl-2-furyldichlorophosphine to provide the corresponding 1,2,3 diazaphospholines derivatives in high yields. These compounds (3-7) have been characterized by microanalytical, FT-IR, MS, 1 H, and 31 P-NMR, and UV spectra.

Spectral and Biological Activity Properties of Some New Aminocyclodiphosph(V)azane Derivatives and Their Complexes

“…This is supported with the observed characteristic ν M-O band. [1][2][3] The spectra of nitrato complex (IV d ) gave additional bands around 1232, 1045, and 877 cm −1 , which are consistent with the monodentate nature of this group. 10 Moreover, the characteristic vibrational bands corresponding to the ν P-NH , ν P-N , and ν p-Cl which were associated with all the complexes under investigation are given in Table II.…”

“…Two Peaks at 705 nm and 554 nm, which may be assigned to 4 T 1g (F) → 4 A 1g (F) and 4 T 1g (F) → 4 T 1g (P) and is consistent with the octahedral geometry. 1,3 The peaks observed at 255 nm, 310 nm and 380-405 nm regions, were assigned to π → π * and n→ π * transitions, respectively. Finally, the low value of molar conductance The Cu(II) complex IVc gave a band at 576 nm, suggesting the existence of a transition from d xy , d 2 z and d xz , d yz transfer to the antibonding and half-filled d x2 −d y2 level which is consistent with an octahedral configuration.…”

“…Further, in all the metal complexes, there were new medium to weak bands observed at lower frequencies in the range (252-305 cm −1 ) were assigned to ν M-N and two bands at 550-559 cm −1 were attributed to ν m-o for IV a-d . [1][2][3] The bands observed at 1563-1470 cm −1 , 1 and, 1619-1561 cm −1 in both Co (II), Ni(II) and Cu(II) complexes were attributable to ν sym OCO and ν asym OCO respectively, which indicated that the acetate groups coordinate as a monodentate to the central metal cation of Co(II), Ni(II), and Cu(II) complexes, respectively. This is supported with the observed characteristic ν M-O band.…”

“…[1][2][3] Little is known about the interaction of hexachlorocyclodiphosph(V)azane with aminothiophene derivatives and their metal complexes. In the present work, the interaction of 1,3-di-phenyl-2,2,2,4,4,4-hexachlorocyclodiphos-(V)azane(I) with 2-amino-3-cyano-4,5-dimethylthiophene (II) and its metal complexes have been reported.…”