Synthesis of distibiranes and azadistibiranes by cycloaddition reactions of distibenes with diazomethanes and azides

Abstract

Cycloaddition reactions of distibene [L(Me2N)GaSb]2 (L = HC[C(Me)NDipp]2; Dipp= 2,6-i-Pr2C6H3)=) with a series of organoazides RN3 (R = Ph, p-CF3-Ph, 1-adamantyl (ada)) yielded azadistibiranes [L(Me2N)GaSb]2NR (R = Ph 1, p-CF3-Ph...

A diarsene radical anion

“…Indeed, the latter was corroborated by an independent reaction of phenyl azide with ( Mes TerAs) 2 in Et 2 O (Scheme 2), analogous to a recent report on an azadistibirane. 29 Diarsene functionalization was already observed for the diarsene (Mes*As) 2 (Mes* = 2,4,6-Mes-C 6 H 2 ) using diazomethane and S 8 , which gave the corresponding, yet only spectroscopically characterized diarsacylopropane and thiadiarsirane. 30 This implies that 1 primarily acts as a one-electron reductant.…”

“…Indeed, the latter was corroborated by an independent reaction of phenyl azide with ( Mes TerAs) 2 in Et 2 O (Scheme 2), analogous to a recent report on an azadistibirane. 29 Diarsene functionalization was already observed for the diarsene (Mes*As) 2 (Mes* = 2,4,6-Mes-C 6 H 2 ) Fig. 4 Left: X-band EPR measurement of 1 in frozen Me THF solution (9.460808 GHz) collected at 100 K (black) and the simulated spectrum (red).…”

Dihydrogen and Ethylene Activation by a Sterically Distorted Distibene

“…The formation of complex 5 represents a unique oxidative addition of H 2 by a heavier element of the group 15 [3b] . In addition, the formation of monomeric 6 represents complimentary reactivity to a recent distibirane synthesis by Schulz group using distibenes [24h] …”

Wasserstoff und Ethylen Aktivierung durch ein sterisch verzerrtes Distiben

“…Die Bildung von Komplex 5 stellt eine einzigartige Form der oxidativen Addition von H 2 durch ein schweres Element der Gruppe 15 dar [3b] . Zusätzlich stellt die Bildung von 6 eine komplementäre Reaktivität zu einer kürzlich, von der Schulz‐Gruppe durchgeführten, Synthese von Distibiranen unter Verwendung von Distibenen dar [24h] …”