easily accessible, and efficient metal-free photoredox catalysts for organic synthesis. By changing the number and position of carbazolyl and cyano groups on the center benzene ring, CDCBs with a wide range of photoredox potentials are obtained to effectively drive the energetically demanding C(sp3)–C(sp2) cross-coupling of carboxylic acids and alkyltrifluoroborates with aryl halides via a photoredox/Ni
The invention provides a process to form an olefin-based polymer, said process comprising polymerizing at least one olefin in the presence of at least one catalyst system comprising the reaction product of the following:
A) at least one cocatalyst; and
B) a procatalyst comprising a metal-ligand complex of Formula (I), as described herein:
CROSSLINKABLE HOLE-TRANSPORTING MATERIALS FOR ORGANIC LIGHT-EMITTING DEVICES
申请人:Jen Kwan-Yue
公开号:US20090278445A1
公开(公告)日:2009-11-12
Crosslinkable compounds useful for making hole-transporting materials for organic light-emitting devices, hole-transporting layers made from the crosslinkable compounds, and light-emitting devices that include the hole-transporting layers.
Kumada–Tamao–Corriu Type Reaction of Aromatic Bromo- and Iodoamines with Grignard Reagents
作者:Alicja A. Zielińska、Piotr Trzaska、Marcin Budny、Mariusz J. Bosiak
DOI:10.1021/acs.joc.3c01553
日期:2023.12.1
unprotected bromoanilines with Grignard reagents is described. The method uses a palladium source and a newly designed Buchwald-type ligand as the catalytic system. Secondary and tertiary bromo- and iodoamines were also successfully coupled to alkyl Grignard reagents. The products of the competitive β-hydride elimination reaction were successfully reduced using a highlyefficient electron-deficient phosphine
Processes for the production of high molecular weight ethylene/alpha-olefin/non-conjugated interpolymers with low levels of long chain branching
申请人:Dow Global Technologies LLC
公开号:US10450394B2
公开(公告)日:2019-10-22
The invention provides a process to form a polymer composition comprising at least one ethylene/α-olefin/non-conjugated polyene interpolymer, and wherein the polymer composition has at least the following properties: a) a Mw/V0.1 ratio greater than, or equal to, 1.80 (g/mol)/(Pa·s); said process comprising polymerizing one or more mixture(s) comprising ethylene, an α-olefin and a non-conjugated polyene in the presence of a catalyst system comprising a metal-ligand complex of Formula (I), as described herein.
本发明提供了一种形成包含至少一种乙烯/α-烯烃/非共轭聚烯互聚物的聚合物组合物的工艺,其中该聚合物组合物至少具有以下特性: a) Mw/V0.1 比率大于或等于 1.80(g/mol)/(Pa-s);所述工艺包括在由本文所述式(I)的金属配体复合物组成的催化剂体系存在下,聚合一种或多种由乙烯、α-烯烃和非共轭聚烯组成的混合物。