Synthesis of boroxine-linked aluminum complexes

Xiaoli Ma; Zhi Yang; Xiujuan Wang; Herbert W Roesky; Feng Wu; Hongping Zhu

doi:10.1021/ic1022906

Synthesis of boroxine-linked aluminum complexes

Inorg Chem. 2011 Mar 7;50(5):2010-4. doi: 10.1021/ic1022906. Epub 2011 Feb 14.

Authors

Xiaoli Ma¹, Zhi Yang, Xiujuan Wang, Herbert W Roesky, Feng Wu, Hongping Zhu

Affiliation

¹ School of Chemical Engineering and Environment, Beijing Institute of Technology, 100081 Beijing, China.

PMID: 21319772
DOI: 10.1021/ic1022906

Abstract

The reaction of LAlH(2) (L = HC(CMeNAr)(2), Ar = 2,6-iPr(2)C(6)H(3)) (1) with 3-methylphenylboronic acid and 3-fluorophenylboronic acid resulted in the boroxine-linked aluminum compounds LAl[OB(3-CH(3)C(6)H(4))](2)(μ-O) (2) and LAl[OB(3-FC(6)H(4))](2)(μ-O) (3), respectively. LAl[OB(2-PhC(6)H(4))(OH)](2) (4) was synthesized by the reaction of 1 with 2-biphenylboronic acid. Compound 4 is the intermediate analogue to those, which we postulated for the formation of 2 and 3. The reaction of 1 with 3-hydroxyphenylboronic acid resulted in the first metal benzoboroxole oxide LAl[OB(o-CH(2)O)C(6)H(4)](2) (5), which is formed from a compound with B-(OH)(2) and C-OH functionalities.