title: Addition Reactions of Me3 SiCN with Aldehydes Catalyzed by Aluminum Complexes Containing in their Coordination Sphere O, S, and N Ligands.
abstract: The reaction of one equivalent of LAlH2 (1; L=HC(CMeNAr)2 , Ar=2,6-iPr2 C6 H3 , β-diketiminate ligand) with two equivalents of 2-mercapto-4,6-dimethylpyrimidine hydrate resulted in LAl[(μ-S)(m-C4 N2 H)(CH2 )2 ]2 (2) in good yield. Similarly, when N-2-pyridylsalicylideneamine, N-(2,6-diisopropylphenyl)salicylaldimine, and ethyl 3-amino-4,5,6,7-tetrahydrobenzo[b]thiophene-2-carboxylate were used as starting materials, the corresponding products LAl[(μ-O)(o-C6 H4 )CN(C5 NH4 )]2 (3), LAlH[(μ-O)(o-C4 H4 )CN(2,6-iPr2 C6 H3 )] (4), and LAl[(μ-NH)(o-C8 SH8 )(COOC2 H5 )]2 (5) were isolated. Compounds 2-5 were characterized by (1) H and (13) C NMR spectroscopy as well as by single-crystal X-ray structural analysis. Surprisingly, compounds 2-5 exhibit good catalytic activity in addition reactions of aldehydes with trimethylsilyl cyanide (TMSCN).
authors.affiliation: School of Chemical Engineering and Environment, Beijing Institute of Technology, 100081, Beijing, P. R. China. zhiyang@bit.edu.cn.|State Key Laboratory of Elemento-organic Chemistry, Nankai University, P. R. China. zhiyang@bit.edu.cn.
authors.forename: Zhi
authors.initials: Z
authors.lastname: Yang
authors.affiliation: School of Chemical Engineering and Environment, Beijing Institute of Technology, 100081, Beijing, P. R. China.
authors.forename: Yafei
authors.initials: Y
authors.lastname: Yi
authors.affiliation: School of Chemical Engineering and Environment, Beijing Institute of Technology, 100081, Beijing, P. R. China.
authors.forename: Mingdong
authors.initials: M
authors.lastname: Zhong
authors.affiliation: Department of Chemical Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur, 741246, India.
authors.forename: Sriman
authors.initials: S
authors.lastname: De
authors.affiliation: Department of Chemical Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur, 741246, India.
authors.forename: Totan
authors.initials: T
authors.lastname: Mondal
authors.affiliation: Department of Chemical Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur, 741246, India. koley@iiserkol.ac.in.
authors.forename: Debasis
authors.initials: D
authors.lastname: Koley
authors.affiliation: School of Chemical Engineering and Environment, Beijing Institute of Technology, 100081, Beijing, P. R. China.
authors.forename: Xiaoli
authors.initials: X
authors.lastname: Ma
authors.affiliation: School of Chemical Engineering and Environment, Beijing Institute of Technology, 100081, Beijing, P. R. China.
authors.forename: Dongxiang
authors.initials: D
authors.lastname: Zhang
authors.affiliation: Institut für Anorganische Chemie, Universität Göttingen, Tammannstrasse 4, 37077, Göttingen, Germany. hroesky@gwdg.de.
authors.forename: Herbert W
authors.initials: HW
authors.lastname: Roesky
keywords: DFT studies; Lewis acid catalyst; addition reactions; aluminum complexes