A porous polymeric ligand (PPL) has been synthesized and complexed with copper to generate a heterogeneous catalyst (Cu@PPL) that has facilitated the efficient C-N coupling with various (hetero)aryl chlorides under mild conditions of visible-light irradiation at 80 °C (58 examples, up to 99% yields). This method could be applied to both aqueous ammonia and substituted amines, and is compatible to a
Rational and Predictable Chemoselective Synthesis of Oligoamines via Buchwald–Hartwig Amination of (Hetero)Aryl Chlorides Employing Mor-DalPhos
作者:Bennett J. Tardiff、Robert McDonald、Michael J. Ferguson、Mark Stradiotto
DOI:10.1021/jo202358p
日期:2012.1.20
We report a diverse demonstration of synthetically useful chemoselectivity in the synthesis of di-, tri-, and tetraamines (62 examples) by use of Buchwald–Hartwig amination employing a single catalyst system ([Pd(cinnamyl)Cl]2/L1; L1 = N-(2-(di(1-adamantyl)phosphino)phenyl)morpholine, Mor-DalPhos). Competition reactions established the following relative preference of this catalyst system for amine
MODIFIED BLOCK COPOLYMER, METHOD FOR PRODUCING MODIFIED BLOCK COPOLYMER, AND RESIN COMPOSITION
申请人:Asahi Kasei Kabushiki Kaisha
公开号:EP3623398A1
公开(公告)日:2020-03-18
A modified block copolymer according to the present invention is a modified block copolymer comprising a polymer block comprising a vinyl aromatic compound as a main constituent (A), a polymer block comprising a conjugate diene compound as a main constituent (B), and an atomic group having NHx (x = 0 to 2) (C). In the modified block copolymer, the polymer block comprising a conjugate diene compound as a main constituent (B) is a hydrogenated product, the atomic group having NHx (x = 0 to 2) (C) is contained in a side chain, and a compound forming the atomic group having NHx (x = 0 to 2) (C) satisfies the following condition:
Condition: when the compound forming the atomic group having NHx (x = 0 to 2) (C) is reacted with a maleic anhydride-modified group in a maleic anhydride-modified block copolymer, a MFR value at 230°C under a load of 2.16 kg of the modified block copolymer after the reaction is 0.1 times or more a MFR value at 230°C under a load of 2.16 kg of the maleic anhydride-modified block copolymer before the reaction.
Modified block copolymer, method for producing modified block copolymer, and resin composition
申请人:Asahi Kasei Kabushiki Kaisha
公开号:US11124593B2
公开(公告)日:2021-09-21
A modified block copolymer according to the present invention is a modified block copolymer comprising a polymer block comprising a vinyl aromatic compound as a main constituent (A), a polymer block comprising a conjugate diene compound as a main constituent (B), and an atomic group having NHx (x=0 to 2) (C). In the modified block copolymer, the polymer block comprising a conjugate diene compound as a main constituent (B) is a hydrogenated product, the atomic group having NHx (x=0 to 2) (C) is contained in a side chain, and a compound forming the atomic group having NHx (x=0 to 2) (C).
Modified Block Copolymer, Method for Producing Modified Block Copolymer, and Resin Composition
申请人:Asahi Kasei Kabushiki Kaisha
公开号:US20200199282A1
公开(公告)日:2020-06-25
A modified block copolymer according to the present invention is a modified block copolymer comprising a polymer block comprising a vinyl aromatic compound as a main constituent (A), a polymer block comprising a conjugate diene compound as a main constituent (B), and an atomic group having NHx (x=0 to 2) (C). In the modified block copolymer, the polymer block comprising a conjugate diene compound as a main constituent (B) is a hydrogenated product, the atomic group having NHx (x=0 to 2) (C) is contained in a side chain, and a compound forming the atomic group having NHx (x=0 to 2) (C).