Gallium, Indium, and Thallium

Reduction and Cycloaddition of Heteroalkenes at Ga(I) Bisamide Center

“…Meanwhile, RM: species proceed with [2+1] or [4+1] cycloadditions. [NacNacAl:] reacts with alkynes to form alumacyclopropenes [62], alkenes to form alumacyclopropanes While the synthesis and structural features of low-valent 13 carbenoid compounds are captivating, their reactivity remains an equally fascinating aspect [33][34][35][36][37][38]. First, they are good σ-donor/π-acceptor ligands for transition metal centers [39,40], have high reactivity against organic molecules, can cleave C-C aromatic bonds [41], and insert into robust C-H [16,[42][43][44][45], C-F, C-O [46], C=N [47], C=S, P=S bonds [48].…”

“…While controlling electron transfer between the non-innocent ligand and the metal atom remains a challenge [25,26], the chemical properties of R 2-M-MR 2-suggest reactivity resembling heterocyclopentadiene (II) [27,28], dimetallene (III) [29,30], and metallylene (IV) [31,32] types (Scheme 1). While the synthesis and structural features of low-valent 13 carbenoid compounds are captivating, their reactivity remains an equally fascinating aspect [33][34][35][36][37][38]. First, they are good σ-donor/π-acceptor ligands for transition metal centers [39,40], have high reactivity against organic molecules, can cleave C-C aromatic bonds [41], and insert into robust C-H [16,[42][43][44][45], C-F, C-O [46], C=N [47], C=S, P=S bonds [48].…”