Organoaluminum(iii) complexes of the bis-N,N′-(2,6-diisopropylphenyl)imidazolin-2-imine ligand

Abstract

Trimethylaluminum reacts with bis-N,N′-(2,6-diisopropylphenyl)imidazolin-2-imine to form a number of new organoaluminum complexes.

Aluminium alkyl complexes supported by imino-phosphanamide ligand as precursors for catalytic guanylation reactions of carbodiimides

“…The isolation of a carbene-stabilised phosphorus mononitride, 27 monomeric phosphinyl radical, 28 singlet phosphinonitrene, 29 its protonated derivative 30 and metal complexes was reported by Bertrand et al 31 The further utilisation of this ligand to stabilise several group 13- and group 16-metal ions was demonstrated by Inoue 32–36 and Rivard. 37,38 However, aluminium alkyl complexes with the imidiazoline-2-iminato ligand were only recently studied by the research groups of Inoue, 35,36 Masuda 39 and Eisen. 40 …”

Reaction of sterically encumbered phenols, TEMPO-H, and organocarbonyl insertion reactions with L-AlH2(L = HC(MeCNDipp)2, Dipp = 2,6-diisopropylphenyl)

“…17, Al1-O1 1.7115 (12), Al1-N1 1.8821(13), Al1-N2 1.8896 (14), O1-Al1-H1 117.1(7), O1-Al1-N1 113.36(6), O1-Al1-N2 101.44(6), N1-Al1-H1 111.1(7), N1-Al1-N2 98.18(6), N2-Al1-H1 113.8(7), C30-O1-Al1 151.28 (11). (18), Al1-N1 1.882(2), Al1-N2 1.884(2), O1-Al1-H1 115.1(9), O1-Al1-N1 111.91(9), O1-Al1-N2 107.11 (9), N1-Al1-H1 111.6(9), N1-Al1-N2 97.43 (8), N2-Al1-H1 112.3(9), C30-O1-Al1 163.28 (17).…”

“…15 Catalytic hydroboration of alkynes has also been expanded to more simple aluminum catalysts, such as (iBu 2 AlH) 2 and AlEt 3 -based molecules. 16 We have had a long-standing interest in the reactivity of main group compounds, [17][18][19][20][21][22][23] including organoaluminum and aluminum-hydride chemistry, 17,24,25 and continue to be interested in the reactivity of sterically bulky aluminum hydrides. With the previously mentioned aluminum-based catalysis reactions in mind, we report the reactivity of aluminum b-diketiminato dihydride, L-AlH 2 (ref.…”

“…Hydrogen atoms (except H1) have been omitted for clarity. Selected bond lengths (Å) and angles ( ): Al1-H1 1.51(3), Al1-O1 1.745(2), Al1-N1 1.901(3), Al1-N2 1.925(3), O1-N3 1.465(3), O1-Al1-N1 114.70(11), O1-Al1-N2 107.54(11), N1-Al1-H1 109.7(12), N1-Al1-N2 94.60(11), N3-O1-Al1 120.31(17).…”

“…Hydrogen atoms have also been omitted for clarity. Selected bond lengths (Å) and angles ( ): Al1-O1 1.7066(14), Al1-N1 1.8803(17), Al1-N2 1.8882(15), Al1-O2 1.680(10), O1-Al1-N1 107.09(7), O1-Al1-N2 113.77(7), N1-Al1-N2 97.32(7), O2-Al1-O1 115.3(5), O2-Al1-N1 115.7(5), O2-Al1-N2 106.4(4), C30-O1-Al1 132.47(15). This journal is © The Royal Society of Chemistry 2017 RSC Adv., 2017, 7, 37315-37323 | 37319 Paper RSC Advances Open Access Article.…”