Intramolekular stabilisierte gallium- und indiumorganyle: Synthese und röntgenstrukturanalyse repräsentativer 5-Methyl-1-galla(inda)-5-azacyclooktane

The intramolecularly stabilized organogallium compounds ClGa(CH2CH2CH2)2NCH3 (1), RGa(CH2CH2CH2)2NCH3 (R  Pr, iPr, Bu, tBu, Ph, CH2SiMe3, (CH2)3NMe2, (CH2)3NEt2, CH2CHMeCH2NMe2, C6H4CH2NMe2, H, (4–14)) and the indium analogs ClIn(CH2CH2CH2)2NCH3 (16) and HIn(CH2CH2CH2)2NCH3 (17) have been synthesized from GaCl3 or InCl3 and bis[(3-chloromagnesio)propyl]methylamine and subsequent reaction with the appropriate Grignard reagents RMgX, with RLi or lithium hydride, respectively. HGa(CH2CH2CH2)2NCH3 (14) inserts CO2 yielding HO2CGa(CH2CH2CH2)2NCH3 (15). The 1H-, 13C-NMR and mass spectra of the new compounds as well as the X-ray crystal structure analyses of 1, 12, 14 and 15 are reported and discussed.