ChemInform Abstract: PREPARATION OF TRIPROPYLETHOXYARSONIUM BROMIDE

Synthesis, Spectroscopic and Structural Systematics of Complexes of Germanium(IV) Halides (GeX4, X = F, Cl, Br or I) with Phosphane Oxides and Related Oxygen Donor Ligands

“…In a similar way, GeBr 4 andMe 3 AsO gave Me 3 AsBr 2 . The conversion of R 3 AsO to R 3 AsCl 2 has been reported to be achieved by a number of reagents including MeCOCl,27 COCl 2 ,28 PCl 3 and AsCl 3 ,29 and with aqueous HCl,30 but for GeCl 4 to behave in this way under such mild conditions was unexpected, and again contrasts with SnCl 4 which readily forms [SnCl 4 (R 3 AsO) 2 ] adducts 31…”

The reaction of triphenylarsine oxide with ethyl iodo‐acetate leading to triphenyl (carboethoxy)methylarsonium triiodide

“…It was also shown that the retro-Arbuzov reaction may take place in the series of tertiary trialkylarsine oxides or mixed alkyl(aryl)arsine oxides 1 (R = R = Et; R = Et, R = Ph; R = Ph, R = Et, Pr, Bu) by the influence of akyl halides 2 (Y = H, Me, Et, Pr; X = Br, I) [9][10][11][12]. Esters of trivalent arsenic acids 6 were isolated from the liquid part of reaction mixture with yields from 10 to 70%.…”

“…Esters of trivalent arsenic acids 6 were isolated from the liquid part of reaction mixture with yields from 10 to 70%. In one case, the reactive alkoxyarsonium salts 3 were identified as intermediates [15]. The reactions studied were complicated by the by-formation of halo arsines that may be formed via the thermal decomposition of 4 [16].…”