14230-09-2Relevant academic research and scientific papers
Dimethylphosphinato and dimethylarsinato complexes of Sb(III) and Bi(III) and their chemistry
Ioannou, Panayiotis V.
, p. 1349 - 1356,8 (2012)
The reaction of Me2PO2H and Me2AsO 2H with SbCl3, BiCl3, and Bi(NO 3)3·5H2O gave the complexes Sb(Me 2PO2)3, Sb(Me2AsO2) 3, (Me2PO2)2Bi-Cl, Bi(Me 2-AsO2)3, (Me2PO2) 2Bi(NO3), and (Me2AsO2) 2Bi(NO3)·H2O, respectively. The arsinato complexes did not react with the Lewis bases pyridine, Ph3P, and Ph3As in acetone. The compounds Sb(Me2AsO 2)3 and (Me2AsO2) 2Bi(NO3)·H2O reacted to a small extent with nicotinic acid in methanol but Bi(Me2AsO2) 3 gave (Me2AsO2-BiO)x in good yields. (Me2AsO2)2Bi(NO3) ·H2O in methanol quantitatively rearranged to new complexes with the same composition, [(Me2AsO2) 2Bi(NO3)·H2O]' and [(Me 2AsO2)2Bi(NO3)·H 2O]'' in the presence of pyridine. With thiophenol in air, Sb(Me 2AsO2)3 gave PhSSPh and Me2As-SPh (1:1 mol ratio), (Me2AsO2-SbO)x and some Sb(Me2AsO2)3 was reformed, Bi(Me 2AsO2)3 gave (Me2AsO 2-BiO)x, PhSSPh, and Me2As-SPh (1:0.6 mol ratio), whereas (Me2AsO2)2Bi(NO 3)·H2O quantitatively gave PhSSPh, thus acting as a catalyst for the air oxidation of thiophenol.
The Reaction of Bunsen's Cacodyl Disulfide, Me2As(S)-S-AsMe2, with Iodine: Preparation and Properties of Dimethylarsinosulfenyl Iodide, Me2As-S-I
Ioannou, Panayiotis V.,Vachliotis, Dimitris G.,Chrissanthopoulos, Athanassios
, p. 1340 - 1346 (2015/06/30)
Bunsen's cacodyl disulfide, Me2As(S)-S-AsMe2 (1), reacted with iodine giving the novel dimethylarsinosulfenyl iodide, Me2As-S-I (3) although theoretical calculations indicated that the AsV compound Me2As(S)-I (4) was more stable in the gas phase. The oily product was stable neat and as a solution in CDCl3 at +4 °C and -20 °C for at least 15 d. Light, H2O, H2O2, and Zn dust, but not NaI or Ag, decomposed it. Compound 3 did not interact with Ph3N, with Ph2NH and PhNH2 it interacted but not reacted. 3 was decomposed by piperidine, with pyridine and 4-dimethylaminopyridine it interacted and produced Me2As-SS-AsMe2 (2) and I2 that formed charge transfer complexes Base·I2, whereas Et3N decomposed 3, and 3Et3N·2I2 was isolated. 3 was desulfurized by Ph3P and (Me2N)3P completely, and by (PhO)3P and (PhS)3P partially. The reactions of 3 with (Me2N)3P, (PhS)3P, and (EtO)3P were complicated. From the AsIII nucleophiles, only Ph3As was bound, while (PhS)3As reacted slowly in a complicated manner with 3. No interaction of 3 with MeOH or PhOH was observed but NaOH, Ag2O, and PhONa decomposed it. Thiophenol produced traces of Me2As-SPh (10) and sodium thiophenolate attacked mainly at AsIII of 3. Thus, externally stabilized sulfenium ions of the type Me2As-S-Nu+I- were not obtained.
The Electrophilic Character of Bunsen's Cacodyl Disulfide, Me2As(S)-S-AsMe2, Towards Some Nucleophiles of Groups 15 and 16
Ioannou, Panayiotis V.,Vachliotis, Dimitris G.
, p. 710 - 714 (2015/03/30)
The reactivity of Bunsen's cacodyl disulfide, Me2As(S)-S-AsMe2, towards nitrogen, phosphorus(III), oxygen and sulfur(II) nucleophiles was evaluated with the aim at identifying its electrophilic atom. The nitrogen nucleophiles either
Dimethylphosphinato and dimethylarsinato complexes of Sb(III) and Bi(III) and their chemistry
Ioannou, Panayiotis V.
, p. 1349 - 1356 (2013/01/13)
The reaction of Me2PO2H and Me2AsO 2H with SbCl3, BiCl3, and Bi(NO 3)3·5H2O gave the complexes Sb(Me 2PO2)3, Sb(Me2AsO2) 3, (Me2PO2)2Bi-Cl, Bi(Me 2-AsO2)3, (Me2PO2) 2Bi(NO3), and (Me2AsO2) 2Bi(NO3)·H2O, respectively. The arsinato complexes did not react with the Lewis bases pyridine, Ph3P, and Ph3As in acetone. The compounds Sb(Me2AsO 2)3 and (Me2AsO2) 2Bi(NO3)·H2O reacted to a small extent with nicotinic acid in methanol but Bi(Me2AsO2) 3 gave (Me2AsO2-BiO)x in good yields. (Me2AsO2)2Bi(NO3) ·H2O in methanol quantitatively rearranged to new complexes with the same composition, [(Me2AsO2) 2Bi(NO3)·H2O]' and [(Me 2AsO2)2Bi(NO3)·H 2O]'' in the presence of pyridine. With thiophenol in air, Sb(Me 2AsO2)3 gave PhSSPh and Me2As-SPh (1:1 mol ratio), (Me2AsO2-SbO)x and some Sb(Me2AsO2)3 was reformed, Bi(Me 2AsO2)3 gave (Me2AsO 2-BiO)x, PhSSPh, and Me2As-SPh (1:0.6 mol ratio), whereas (Me2AsO2)2Bi(NO 3)·H2O quantitatively gave PhSSPh, thus acting as a catalyst for the air oxidation of thiophenol. Springer-Verlag 2012.
