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Benzil Derivatives as Trapping Reagents for the Monomeric Alkylindium(i) Compound in–c(SiMe 3 ) 3
Author(s) -
Uhl Werner,
Keimling Sven Ume,
Phol Siegfried,
Saak Wolfgang,
Wartchow Rudolf
Publication year - 1997
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.19971300915
Subject(s) - chemistry , benzil , trimethylsilyl , monomer , yield (engineering) , indium , ligand (biochemistry) , crystal structure , reagent , medicinal chemistry , stereochemistry , chelation , crystallography , organic chemistry , catalysis , biochemistry , materials science , receptor , metallurgy , polymer
The tetrahedral cluster compound tetrakis[[Tris(trimethylsilyl)methyl]indium(I)] 9 1 ) reacts in boiling n ‐hexane with benzil derivatives ( p ‐X‐C 6 H 4 )C(O)( p ‐X‐C 6 H 4 ) (X = H, OMe, Br), to yield the 1,4‐cycloadditon products of the monomeric alkylindium(I), In–C(SiMe 3 ) 3 , in which the In atoms are coordinated by a chelating enediolato ligand, to form a five‐membered InO 2 C 2 heterocycle. As shown by two crystal structure determinations (X = H, OMe), the products are dimeric in the solid state, with a four‐membered In 2 O 2 heterocycle in the molecular center and both C(SiMe 3 ) 3 groups, as well as both enediolato substitutents in a cis arrangement.
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