Deoxygenative cross-electrophile coupling of benzyl chloroformates with aryl iodides
作者:Yingying Pan、Yuxin Gong、Yanhong Song、Weiqi Tong、Hegui Gong
DOI:10.1039/c9ob00628a
日期:——
This work describes Ni-catalyzed cross-electrophile coupling of benzyl chloroformate derivatives with aryl iodides that generates a wide range of diaryl methane products. The mild reaction conditions merit the C–O bond radical fragmentation of benzyl chloroformates via halide abstraction or a single electron reduction by a Ni catalyst. This work offers a new substrate type for cross-electrophile couplings
这项工作描述了镍催化的氯甲酸苄酯衍生物与芳基碘化物的交叉亲电子偶联,生成多种二芳基甲烷产物。温和的反应条件使得氯甲酸苄酯的 C-O 键自由基通过卤化物夺取或 Ni 催化剂的单电子还原而断裂。这项工作为交叉亲电子偶联提供了一种新的底物类型。
Transition metal compound, catalyst composition comprising the same, and method of preparing polyolefin
申请人:LG CHEM, LTD.
公开号:US09963527B2
公开(公告)日:2018-05-08
The present invention relates to a novel transition metal compound, a catalyst composition comprising the transition metal compound, and a method of preparing polyolefin using the catalyst composition.
申请人:LG CHEM, LTD. 주식회사 엘지화학(120010134563) Corp. No ▼ 110111-2207995BRN ▼107-81-98139
公开号:KR20160040993A
公开(公告)日:2016-04-15
본 발명은 신규한 리간드 화합물, 메탈로센 화합물 및 이를 이용하는 올레핀계 중합체의 제조방법에 관한 것이다. 본 발명에 따른 메탈로센 화합물 및 이를 포함하는 촉매 조성물은 우수한 중합 활성을 가지면서도, 공단량체 삽입능이 우수하므로 넓은 분자량 분포를 갖고, 이에 따라 가공성이 우수한 올레핀계 중합체를 제조할 수 있다.
Nickel-Catalyzed Reductive Cross-Coupling of Benzylic Sulfonium Salts with Aryl Iodides
作者:Fan Wu、Wei Wang、Ken Yao
DOI:10.1055/s-0041-1737762
日期:2022.3
nickel-catalyzed cross-electrophile coupling of benzylic sulfoniumsalts with aryl iodides has been developed, providing direct access to diarylalkanes from readily available and stable coupling partners. Preliminary mechanistic studies suggest that the C–S bond cleavage proceeds through a single-electron transfer process to generate a benzylic radical.
Dziewonski; Reicher, Bulletin International de l'Academie Polonaise des Sciences et des Lettres, Classe des Sciences Mathematiques et Naturelles, Serie A: Sciences Mathematiques, 1931, p. 643,649