1244762-94-4

Basic information

• Product Name: [(Me₂NCH₂CH₂N(CH₂-(2-O-C₆H₂tBu₂-3,5))2)Nd(4-methoxyphenolate)(THF)2]
• CAS NO: 1244762-94-4
• Molecular Weight: 934.4
• Mol File: 1244762-94-4.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: [(Me₂NCH₂CH₂N(CH₂-(2-O-C₆H₂tBu₂-3,5))2)Nd(4-methoxyphenolate)(THF)2](CAS DataBase Reference)
• NIST Chemistry Reference: [(Me₂NCH₂CH₂N(CH₂-(2-O-C₆H₂tBu₂-3,5))2)Nd(4-methoxyphenolate)(THF)2](1244762-94-4)
• EPA Substance Registry System: [(Me₂NCH₂CH₂N(CH₂-(2-O-C₆H₂tBu₂-3,5))2)Nd(4-methoxyphenolate)(THF)2](1244762-94-4)

Safety Data

• Hazardous Substances Data: 1244762-94-4(Hazardous Substances Data)

Upstream product

• 109-99-9 tetrahydrofuran 
• 150-76-5 4-methoxy-phenol 
• 188713-27-1 N,N-bis(3,5-di-t-butyl-2-hydroxybenzyl)-N',N'-dimethylethylenediamine 

Relevant articles and documents

Synthesis and characterization of amine bridged bis(phenolate) lanthanide aryloxides and their application in the polymerization of lactide

A series of neutral lanthanide aryloxides supported by an amine bridged bis(phenolate) ligand were synthesized, and their catalytic behavior for the polymerization of l-lactide was explored. The reactions of (C5H 5)3Ln(THF) with amine bridged bis(phenol)LH2 [L = Me2NCH2CH2N{CH2-(2-O-C 6H2-But2-3,5)}2] in a 1:1 molar ratio, and then with 1 equivalent of 2,6-diisopropylphenol, p-cresol or 4-methoxyphenol, respectively, in situ in THF gave the neutral lanthanide aryloxides LLn(OC6H3-2,6-Pri2)(THF) [Ln = Nd (1), Sm (2), Yb (3)], LLn(OC6H4-4-CH 3)(THF)n [Ln = Nd (4), Sm (5), n = 2; Ln = Y (6), n = 1] and LLn(OC6H4-4-OCH3)(THF)n [Ln = Nd (7), Sm (8), n = 2; Ln = Yb (9), n = 1] in high isolated yields. These complexes were well characterized by elemental analyses, IR spectra and NMR spectroscopy in the case of complex 6. The definitive molecular structures of complexes 1-8 were determined by single-crystal X-ray analyses, which revealed that both the substituents of the aryloxo groups and the ionic radii of the lanthanide metals affect the solid-state structures of the bis(phenolate) lanthanide aryloxides. It was found that complexes 1-9 are efficient initiators for the ring-opening polymerization of l-lactide, and the structures of the aryloxo groups have no obvious effect on the catalytic activity and controllability. A further study revealed that complex 6 can initiate the highly heteroselective ring-opening polymerization of rac-lactide. The Royal Society of Chemistry 2010.