ChemInform Abstract: Chemistry of Boron. Part 193. Reactions of Amino-imino-boranes with Organyl, Methoxy, and Dimethylamino Compounds of Phosphorus, Arsenic, and Antimony.
Abstract
The insertion of the E-O or E-N bond of phosphane, arsane, and stibane derivatives of the type E(OMe)3 and E(NMe2)3 e.g. (II) into the B=N bond of the amino-imino-boranes (I) giving the products (III) is determined by the Lewis acidity of the EX3 compounds which increases for this series according to E: P < As < Sb.
ChemInform Abstract
The insertion of the E-O or E-N bond of phosphane, arsane, and stibane derivatives of the type E(OMe)3 and E(NMe2)3 e.g. (II) into the B=N bond of the amino-imino-boranes (I) giving the products (III) is determined by the Lewis acidity of the EX3 compounds which increases for this series according to E: P < As < Sb. In addition, steric effects play also a decisive role as demonstrated by a decrease in reactivity of the series (IV), R2: Ph > Me > iPr ≫ tBu; chlorophosphorylation occurs specifically to yield the products (V). Aminochlorophosphanes do not react specifically with (Ia), but (MeO)2PCl (VI) yields the methoxyphosphorylation products (VII).
