Salen-supported dinuclear and trinuclear boron compounds
نویسندگان
چکیده
Six boron compounds have been synthesized through the combination of phenylboronic acid and various Salen (N ,N ?ethylenebis(2-hydroxy)benzylidenimine) ligands. They contain sevenand eight-membered heterocycles with a bridging oxygen and have the formula: L[(PhB)2(m-O)] (L /Acmen (1), Salen( Bu) (2), Sal(2-OH)pen (3), Salpen( Bu) (4), Acpen (5)) and L[B2(mO)(O2BPh)] (L /Acen (6), Salmen (7)). Compounds 6 and 7 are interesting trinuclear boron derivatives with two four-coordinate and one three-coordinate boron atoms. The compounds have been characterized by MP, MS, IR, EA and Hand B-NMR, by B-MAS for 6 and 7 and by X-ray crystallography for 2, 4 /7. # 2002 Elsevier Science B.V. All rights reserved.
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تاریخ انتشار 2002