1228351-42-5Relevant articles and documents
Improved Synthesis of Unsymmetrical N-Aryl-N′-alkylpyridyl ?-Diketimines Using Molecular Sieves and their Lithium Complexes
Chand, Kuldeep,Tsai, Cheng-Long,Chen, Hsuan-Ying,Ching, Wei-Min,Hsu, Sung-Po,Carey, James R.,Hsu, Sodio C. N.
, p. 1093 - 1098 (2018)
The synthesis of unsymmetrical β-diketimines with N-aryl-N′-alkyl substitution require at least two condensation steps and tedious purification procedures. An improvement in the preparation of four unsymmetrical N-aryl-N′-alkylpyridyl β-diketimine ligands
Steric and chelating ring concerns on the l-lactide polymerization by asymmetric β-diketiminato zinc complexes
Chen, Hsuan-Ying,Chuang, Wan-Jung,Chen, Hsing-Yin,Chen, Wei-Ting,Chang, Heng-Yi,Chiang, Michael Y.,Hsu, Sodio C. N.
, p. 36705 - 36714 (2016)
A series of new asymmetrical N-aryl-N′-alkyl β-diketimines bearing a pendant pyridyl group (L1H-L4H) were synthesized in a two steps reaction from acetylacetone and the corresponding appropriate amines. The reaction of these β-diketi
Single, double and triple deprotonation of a β-diketimine bearing pendant pyridyl group and the corresponding rare-earth metal complexes
Xu, Xin,Chen, Yaofeng,Zou, Gang,Sun, Jie
experimental part, p. 3952 - 3958 (2010/07/04)
A new β-diketimine bearing the pendant pyridyl group, CH 3C(2,6-(iPr)2C6H3NH) CHC(CH3)(NCH2-C5NH4) (L1), was synthesized. The reaction of L1 with one equivalent of Sc(CH 2SiMe3)3(THF)2 at room temperature gave a singly deprotonated product (L1-H)Sc(CH2SiMe3) 2 (1). Y(CH2SiMe3)3(THF)2 under the same conditions led to the unexpected dimer [(L1-H 3)Y(THF)]2 (2), in which the ligand precursor L1 was triply deprotonated. The reaction of L1 with Y(CH2SiMe 3)3(THF)2 at -35°C provided a mixture of singly deprotonated product (L1-H)Y(CH2SiMe3)2 (3) and doubly deprotonated product (L1-H2)Y(CH2SiMe 3)(THF)2 (4). The reactions of L1 with Ln[N(SiMe 3)2]3 gave only singly deprotonated products (L1-H)Ln[N(SiMe3)2]2 (5: Ln = Y; 6: Ln = La). The complexes 1, 2 and 4-6 have been characterized by single-crystal X-ray diffraction.