Lithium complex of 2-amino-functionalized benzoylpyrrole: Synthesis, structure, and catalytic activity for the cyclotrimerization of isocyanates. (7th July 2017)

• Record Type: Journal Article
• Authors: Guo, Zhiqiang; Wang, Yakong; Yang, Jihong; Wei, Xuehong
• Is Part Of: Polyhedron. Volume 130(2017)
• Page Start: 13
• Page End: 17
• Publication Date: 2017-07-07
• Subjects: Benzoylpyrrole -- Synthesis -- Cyclotrimerisation -- Isocyanate -- Lithium complex; Chemistry, Inorganic -- Periodicals; Chimie inorganique -- Périodiques; Organometaalverbindingen; Anorganische chemie; 546.05
• DOI: 10.1016/j.poly.2017.03.058
• Languages: English
• ISSNs: 0277-5387

Abstract

Graphical abstract: Lithium complex stabilised by 2-amino-functionalized benzoylpyrrole was synthesized, and its structural features were provided. The molecular structure shows a novel tetrameric cage structure, which includes a eight-membered (LiN)4 ring and a eight-membered (LiO)4 ring with the coordinating pyrrolyl ligands. It was proved to an efficient catalyst for the cyclotrimerisation of isocyanates in good to excellent yields under mild conditions. Abstract: Lithium complex stabilised by 2-amino-functionalized benzoylpyrrole was synthesized, and its structural features were provided. The molecular structure shows a novel tetrameric cage structure, which includes a eight-membered (LiN)4 ring and a eight-membered (LiO)4 ring with the coordinating pyrrolyl ligands. It was proved to an efficient catalyst for the cyclotrimerisation of isocyanates in good to excellent yields under mild conditions.