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Synthesis of a Hexadentate Hexameric Aluminum Imide and Its Metathesis Reactions
Author(s) -
Reddy N. Dastagiri,
Kumar S. Shravan,
Roesky Herbert W.,
Vidovic Denis,
Magull Jörg,
Noltemeyer Mathias,
Schmidt HansGeorg
Publication year - 2003
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.200390062
Subject(s) - chemistry , toluene , imide , yield (engineering) , metathesis , medicinal chemistry , crystal structure , ring (chemistry) , aluminium , salt metathesis reaction , stereochemistry , polymer chemistry , organic chemistry , polymerization , materials science , metallurgy , polymer
The reaction of AlH 3 ·NMe 3 with one equivalent of 2‐cyanothiophene in toluene afforded [HAlNCH 2 (C 4 H 3 S)] 6 ( 2 ) in good yield. Treatment of 2 with SiMe 3 Br and SiMe 3 Cl in toluene under refluxing conditions resulted in the formation of compounds [BrAlNCH 2 (C 4 H 3 S)] 6 ( 3 ) and [ClAlNCH 2 (C 4 H 3 S)] 6 ( 4 ), respectively. In a similar way [PhC≡CAlNCH 2 (C 4 H 3 S)] 6 ( 5 ) was readily obtained from the reaction between 2 and PhC≡CH. When 2 was treated with PhSH the Al‐N cluster core dissociated and a four‐membered ring compound [(PhS) 2 AlNHCH 2 (C 4 H 3 S)] 2 ( 6 ) was formed. In contrast, a similar hexameric aluminum imide (HAlNCH 2 Ph) 6 ( 1 ) retains its Al‐N network when treated with PhSH to yield (PhSAlNCH 2 Ph) 6 ( 7 ). An exchange of ethyl groups and hydrides occurred when 2 was treated with excess of ZnEt 2 , forming [EtAlNCH 2 (C 4 H 3 S)] 6 8 . Compounds 2 − 4 and 6 − 8 were characterized by X‐ray single‐crystal analysis. (© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2003)