6230-65-5Relevant articles and documents
Copolymers of Ethylene and Vinyl Amino Acidic Ester with High Molecular Weight Prepared by Non-metallocene Catalysts
Wang, Jing,Nan, Feng,Guo, Jiangping,Wang, Jian,Shi, Xianghui,Huang, Haibing,Huang, Qigu,Yang, Wantai
, p. 609 - 619 (2016)
Non-metallocene catalysts containing [N, Si, N, P]-type ligands based on diphenyl phosphorus-phenylamine and their derivatives were synthesized and characterized by H(13C) NMR, ESI-MS and micro analysis. They were able to catalyze copolymerization of ethylene with N-acetyl-O-(hex-5-enyl)-L-tyrosine ethyl ester after activated by methylaluminoxane (MAO). Effects of transition metal atoms (Ti, Zr and Hf), ligand structures and polymerization conditions were investigated. The structures and properties of the obtained polymers were characterized by FT-IR, 13C NMR, GPC and DSC. The results indicated that the obtained copolymers had high weight average molecular weight of 2.70 × 105 g/mol and high comonomer incorporation rate of 23.07 wt% within the copolymer chain. The melting temperature of the copolymer was up to 138.6 °C higher than that of the polyethylene.
Method for preparing primary amide from olefin, carbon monoxide and ammonia gas
-
Paragraph 0013; 0014; 0015, (2018/06/15)
The invention discloses a method for preparing primary amide from olefin, carbon monoxide and ammonia gas. According to the method, olefin, carbon monoxide and ammonia gas are used as raw materials for preparation of primary amide under the action of a catalyst composed of phosphine ligand and a rhodium compound; the used phosphine ligand can guarantee that the rhodium compound uses as the catalyst effectively catalyzes carboamidation of olefin, so high-yield production of primary amide can be realized; and the phosphine ligand also contains N-heteroatoms or/and O-heteroatoms or/and S-heteroatoms. The method is a one-pot synthetic method and is simple in synthesis steps; high yield of primary amide is realized in preparation of primary amide from olefin, carbon monoxide and ammonia gas through carboamidation under the action of the catalyst composed of the phosphine ligand and the rhodium compound; and the catalyst has good catalysis performance and stable service life.
Palladium(II) complex of phosphinic amide, [Pd(Ph2P(O)Ch 2NPh)2], and its catalytic investigation towards Suzuki-Miyaura cross-coupling reactions
Ibrahim, Sk Md,Ganesamoorthy, Chelladurai,Balakrishna, Maravanji S.
, p. 1400 - 1403 (2013/12/04)
The reaction between aniline and chlorodiphenylphosphine in 2:1 molar ratio afforded the aminophosphine C6H5NHPPh2 (1) which on subsequent treatment with paraformaldehyde produced the methylene inserted product, Ph2/