A germanimidoyl chloride: synthesis, characterization and reactivity

Chem Commun (Camb). 2023 Feb 2;59(11):1533-1536. doi: 10.1039/d2cc05970c.

Abstract

The first germanimidoyl chloride MsFluindtBu-Ge(Cl)NMes (2, where MsFluindtBu is a bulky hydrindacene skeleton) was synthesized through the reaction of MsFluindtBu-GeCl (1) and mesityl azide (MesN3). In contrast, treatment of 1 with a less bulky azide ArN3 (Ar = 4-tBuC6H4) produced a germatetrazole chloride MsFluindtBu-Ge(Cl)N4Ar2 (3), and a salt [MsFluindtBu-GeN4Ar2]+[BArF4]- (4; ArF = 3,5-(CF3)2C6H3) followed by chloride abstraction with NaBArF4, both bearing a five-membered GeN4 ring. Functionalization of 2 with Ar'Li (Ar' = 3,5-tBu2C6H3) or MeLi furnished a germanimine MsFluindtBu-Ge(Ar')NMes (5) or an amide lithium salt MsFluindtBu-Ge(Me)2-N(Mes)Li(thf) (6).