t-Bu-Amphos–RhCl3·3H2O: a highly recyclable catalyst system for the cross-coupling of aldehydes and aryl- and alkenylboronic acids in aqueous solvents

2005 ◽  
pp. 4484 ◽  
Author(s):  
Rongcai Huang ◽  
Kevin H. Shaughnessy
Keyword(s):  
Cross Coupling ◽  
Catalyst System ◽  
Recyclable Catalyst ◽  
The Cross

A Highly Versatile Catalyst System for the Cross-Coupling of Aryl Chlorides and Amines

2010 ◽  
Vol 16 (6) ◽  
pp. 1983-1991 ◽  
Author(s):  
Rylan J. Lundgren ◽  
Antonia Sappong-Kumankumah ◽  
Mark Stradiotto
Keyword(s):  
Cross Coupling ◽  
Catalyst System ◽  
Aryl Chlorides ◽  
The Cross

Nickel-Catalyzed Cross-Coupling of Ammonia or Primary Alkylamines with (Hetero)aryl Sulfamates, Carbamates, or Pivalates

Synlett ◽  
2017 ◽  
Vol 28 (13) ◽  
pp. 1652-1656 ◽  
Author(s):  
Mark Stradiotto ◽  
Preston MacQueen
Keyword(s):  
Broad Spectrum ◽  
Room Temperature ◽  
Cross Coupling ◽  
Catalyst System ◽  
Boronate Ester ◽  
The Cross ◽  
First Time

A catalyst system capable of effecting the cross-coupling of ammonia or primary alkylamines with (hetero)aryl sulfamates, carbamates, or pivalates is reported for the first time. The air-stable nickel(II) pre-catalyst C1 tolerates a broad spectrum of heterocyclic functionality within both reaction partners, as well as ether, nitrile, pyrrole, trifluoromethyl, and boronate ester substituents. In the case of reactions involving primary alkylamines and (hetero)aryl sulfamates and carbamates, room-temperature cross-couplings were achieved.

ChemInform Abstract: A Highly Versatile Catalyst System for the Cross-Coupling of Aryl Chlorides and Amines.

ChemInform ◽  
2010 ◽  
Vol 41 (23) ◽  
pp. no-no
Author(s):  
Rylan J. Lundgren ◽  
Antonia Sappong-Kumankumah ◽  
Mark Stradiotto
Keyword(s):  
Cross Coupling ◽  
Catalyst System ◽  
Aryl Chlorides ◽  
The Cross

A horizontal linear vibrator for measuring the cross-coupling coefficient of superconducting gravity gradiometers

Measurement ◽  
2021 ◽  
Vol 174 ◽  
pp. 109083
Author(s):  
Lu Zhang ◽  
Yuntao Qiu ◽  
Xikai Liu ◽  
Liang Chen ◽  
Ning Zhang ◽  
...  
Keyword(s):  
Coupling Coefficient ◽  
Cross Coupling ◽  
Superconducting Gravity ◽  
The Cross

scholarly journals Divergent Pathways Regulate Ligand-Independent Activation of ERα in SK-N-BE Neuroblastoma and COS-1 Renal Carcinoma Cells

1998 ◽  
Vol 12 (6) ◽  
pp. 835-841
Author(s):  
Cesare Patrone ◽  
Elisabetta Gianazza ◽  
Sabrina Santagati ◽  
Paola Agrati ◽  
Adriana Maggi
Keyword(s):  
Cell Line ◽  
Intracellular Signaling ◽  
Steroid Receptors ◽  
Neuroblastoma Cell ◽  
Cross Coupling ◽  
Activation Function ◽  
Neuroblastoma Cell Line ◽  
Membrane Receptors ◽  
Insulin Dependent ◽  
The Cross

Abstract The α-estrogen receptor (ERα) transcriptional activity can be regulated either by binding to the cognate ligand or by intracellular signaling pathways responsive to a variety of factors acting through cell membrane receptors. Studies carried out in HeLa and COS-1 cells demonstrated that the cross-coupling between estrogen and growth factor receptors is mediated by p21ras and requires phosphorylation of a specific serine residue (Ser 118 in the human ERα and Ser 122 in mouse ERα) located in the ERα N-terminal activation function 1 (AF-1). Likewise, in the SK-N-BE neuroblastoma cell line p21ras is involved in the cross-coupling between insulin and ERα receptors. However, in this cell line Ser 122 is not necessary for insulin-dependent activation of unliganded ERα. In addition, after insulin activation, the electrophoretic mobility associated to serine hyperphosphorylation of ERα in SK-N-BE and in COS-1 cells is different. Our study rules out the possibility of tyrosine phosporylation in unliganded ERα activation by means of transactivation studies of ERα tyrosine mutants and analysis of Tyr phosphorylation immunoreactivity. The two cofactors for steroid receptors RIP 140 and SRC-1 do not seem to be specifically involved in the insulin-induced ERα transactivation. The present study demonstrates the possibility of an alternative, cell-specific pathway of cross-coupling between intracellular and membrane receptors, which might be of importance for the understanding of the physiological significance of this mode of activation in the nervous system.

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