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Syntheses and Structures of Intramolecularly Stabilized Organoaluminium Compounds
Author(s) -
Müller Jens,
Englert Ulli
Publication year - 1995
Publication title -
chemische berichte
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 0009-2940
DOI - 10.1002/cber.19951280510
Subject(s) - chemistry , yield (engineering) , adduct , lewis acids and bases , medicinal chemistry , nmr spectra database , stereochemistry , organic chemistry , spectral line , catalysis , materials science , physics , astronomy , metallurgy
The reaction of LiAr (Ar = 2‐[(dimethylamino)methyl]phenyl) with AlCl 3 , MeAlCl 2 , and Me 2 AlCl in a 1:1 ratio yields the corresponding organoaluminium compounds ArAlCl 2 , ArAl(Cl)Me, and ArAlMe 2 ( 1 – 3 ). The alanes Ar 2 AlCl and Ar 2 AlMe ( 4 and 5 ) were synthesized from AlCl 3 and MeAlCl 2 with two equivalents of LiAr. The products ArAl(Cl)R [R = t Bu, C(SiMe 3 ) 3 ] 6 and 7 are formed by the reaction of LiR with 1 . The Lewis acid 1 adds the bases i PrNH 2 and THF to yield the adducts 1 · i PrNH 2 and 1 · THF. The structures of the products were deduced from the 1 H‐, 13 C‐, and 27 Al‐NMR spectra and were confirmed by X‐ray structural determinations of 5 and 1 · i PrNH 2 .
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