An iron-catalyzed cross-coupling between di(hetero)arylmanganese reagents and primary and secondary alkyl halides is reported. No rearrangement of secondary alkyl halides to unbranched products was observed in these C–C bond-forming reactions.
Nickel-Catalyzed Cross-Coupling of Redox-Active Esters with Boronic Acids
作者:Jie Wang、Tian Qin、Tie-Gen Chen、Laurin Wimmer、Jacob T. Edwards、Josep Cornella、Benjamin Vokits、Scott A. Shaw、Phil S. Baran
DOI:10.1002/anie.201605463
日期:2016.8.8
transformation analogous in simplicity and functional group tolerance to the venerable Suzuki cross‐coupling between alkyl‐carboxylic acids and boronic acids is described. This Ni‐catalyzed reaction relies upon the activation of alkyl carboxylic acids as their redox‐active ester derivatives, specifically N‐hydroxy‐tetrachlorophthalimide (TCNHPI), and proceeds in a practical and scalable fashion. The inexpensive
描述了一种在简单性和官能团耐受性方面类似于烷基羧酸和硼酸之间古老的铃木交叉偶联的转换。这种镍催化的反应依赖于烷基羧酸作为其氧化还原活性酯衍生物的活化,特别是N-羟基四氯邻苯二甲酰亚胺(TCNHPI),并以实用且可扩展的方式进行。反应组分(NiCl 2 ⋅6 H 2 O—$9.5 mol -1 , Et 3 N)的廉价性质加上几乎无限的可用起始材料的商业目录预示着其快速采用。
Gamma-aminoamide modulators of chemokine receptor activity
申请人:Butora Gabor
公开号:US20050261325A1
公开(公告)日:2005-11-24
The present invention is directed to compounds of the formula (1), wherein R
1
, R
2
, R
3
, R
4
, R
5
, R
6
, R
7
, R
8
, R
11
, R
12
, W, X, and n are defined herein, which are useful as modulators of chemokine receptor activity. In particular, these compounds are useful as modulators of the chemokine receptor CCR-2.
Heterarylpiperidine modulators of chemokine receptor activity
申请人:Goble D. Stephen
公开号:US20050250781A1
公开(公告)日:2005-11-10
The present invention is directed to compounds of the formula (I): (wherein R
1
, R
2
, R
3
, R
4
, R
5
, R
6
, R
10
and n are defined herein) which are useful as modulators of chemokine receptor activity. In particular, these compounds are useful as modulators of the chemokine receptor CCR-2.
Cross-couplings of alkyl halides with heteroaromatic halides, in water at room temperature
作者:Arkady Krasovskiy、Isabelle Thomé、Julien Graff、Valeria Krasovskaya、Paul Konopelski、Christophe Duplais、Bruce H. Lipshutz
DOI:10.1016/j.tetlet.2010.11.160
日期:2011.4
Zn-mediated, Pd-catalyzed cross-coupling reactions between heteroaromatic and alkyl halides can be done at room temperature in pure water using a commercially available Pd catalyst and PTS, a nanomicelle-forming amphiphile. Notably, zinc metal inserts selectively into a carbon sp(3)-halide bond, while palladium adds oxidatively to a carbon sp(2)-bond. (C) 2010 Elsevier Ltd. All rights reserved.