Synthese, Struktur und Umlagerung von Chlorbis(2,4,6‐tri‐tert‐butylphenyl)gallan

Abstract

Synthesis, Structure, and Rearrangement of Chlorobis(2,4,6‐tri‐tert‐butylphenyl)gallane The title compound 1 is easily obtained from GaCl3 and 2 equvialents of supermesityllithium. According to an X‐ray structure analysis one of the supermesityl rings shows a large deviation from planarity. Heating of 1 in vacuo gives mainly two products: an isomer of 1 in which one of the supermesityl groups is bound to Ga by one of its tert‐butyl groups (2) and a benzo[b]gallolane (3) formed by elimination of HCl, X‐ray structure analyses and full NMR (1H, 13C) data are provided for 1 and 2, MS and characteristic NMR (1H, 13C) data for 3.

Halides of Ortho-Substituted Arylaluminum Compounds With Coordination Numbers Four and Five

“…3(1), Symmetrie transformation used to generate the equivalent atoms: #1x,y,-z+1/2. 3(1), Symmetrie transformation used to generate the equivalent atoms: #1x,y,-z+1/2.…”

“…NMR (in C 6 D 6 ): δ ( 1 H) + δ ( 13 C) NCH 3 : 2.21 (s, 12H) + 47.39; CH 2 N: 3.12 (s, 4H) + 65.14; Ci: 143.3 (br); C 26 : 145.08; C 36 H: 6.76 (d, 3 Yield: 8.78 g (62.8%).…”

“…NMR (in C 6 D 6 ): δ ( 1 H) + δ ( 13 C) NCH 3 Structure Analyses of 2, 4, 6, 7, 11 and 16 26 A summary of the crystallographic data is presented in Table 4. 6.1 g 1-(dimethylamino)naphthylalene we recovered.…”

New route to organoaluminium sulfides: synthesis of (Mes*AlS)2 (Mes* = -C6H2But3-2,4,6) and its dimethyl sulfoxide adduct [Mes*AlS(OSMe2)]2

“…Similar distortions have been observed in other Mes* group 13 derivatives. 10 Finally, although no dissociation of the dimeric 1 was effected by the addition of Me 2 SO, attempted redissolution of isolated 2 results in its partial decomposition and production of an orange-red solid. Attempts to identify the composition of this solid are currently underway.…”

Synthesis and Structure of Gallium/Silicon Heterocycles with a Ga2Si2 and a Ga3Si Framework⋆

“…In 3 this is achieved by a wide SiGaSi bond angle [150.3(1)°]. This is very wide, compared to other monomeric R 2 GaCl compounds like [(Me 3 Si) 2 N] 2 GaCl [8] [NϪGaϪN ϭ 128.5(2)°], (2,4,6-iPr 3 C 6 H 2 ) 2 GaCl [9] [CϪGaϪC ϭ 133.8(7)°], and (2,4,6-tBu 3 C 6 H 2 ) 2 GaCl [10] [CϪGaϪC ϭ 135.6(2)°]. Only (Mes 2 C 6 H 3 ) 2 GaCl [CϪGaϪC ϭ 153.5(5)°] is even more T-shaped.…”