Metal Directed One-Pot Syntheses: Mono-, Di- and Tetra-Nuclear Clusters [1]

2003 ◽  
Vol 58 (1) ◽  
pp. 22-26 ◽  
Author(s):  
Rolf W. Saalfrank ◽  
Uwe Reimann ◽  
Frank Hampel ◽  
Cornelia Goebel ◽  
Regine Herbst-Irmer
Keyword(s):  
Nickel Acetate ◽  
One Pot ◽  
Aerobic Conditions ◽  
Nuclear Complex ◽  
Nuclear Clusters ◽  
Nuclear Cluster ◽  
Nitrogen Donors

Abstract Upon reaction of HL1 1 (picoline-tetrazolylamide) with cobalt(II) acetate under aerobic conditions or with copper(II) acetate, the mono-nuclear complex [CoIII(L1)3] 3 and the di-nuclear complex [Cu2(L1)4] 4 were generated. In 3 and 4, (L1)− exclusively coordinates across its nitrogen donors. However, when HL2 5 (picoline-tetrazolylthioamide) was reacted with copper- or nickel acetate, the di-nuclear cluster [Cu2(L2)4] 6 and the tetra-nuclear cluster [Ni4(L2)8] 7, respectively, were isolated. Contrary to 3 and 4, in 6 and 7, (L2)− also coordinates across sulfur.

Vis/NIR light driven mild and clean synthesis of disulfides in the presence of Cu2(OH)PO4 under aerobic conditions

RSC Advances ◽  
2015 ◽  
Vol 5 (56) ◽  
pp. 45416-45419 ◽  
Author(s):  
Sk. Sheriff Shah ◽  
S. Karthik ◽  
N. D. Pradeep Singh
Keyword(s):  
One Pot ◽  
Aerobic Conditions ◽  
Highly Efficient ◽  
Nir Light ◽  
Clean Synthesis

A highly efficient one-pot strategy has been developed for the synthesis of disulfide in the presence of air under the irradiation of Vis/NIR light.

scholarly journals Visible‐Light‐Driven, One‐pot Amide Synthesis Catalyzed by the B 12 Model Complex under Aerobic Conditions

ChemPlusChem ◽  
2019 ◽  
Vol 84 (3) ◽  
pp. 236-236 ◽  
Author(s):  
Hui Tian ◽  
Hisashi Shimakoshi ◽  
Toshikazu Ono ◽  
Yoshio Hisaeda
Keyword(s):  
Visible Light ◽  
One Pot ◽  
Aerobic Conditions ◽  
Amide Synthesis ◽  
Model Complex ◽  
Visible Light Driven

scholarly journals An Efficient One-Pot Multicomponent Synthesis of Tetracyclic Quinazolino[4,3-b]quinazolines by Sequential C–N Bond Formation and Copper-Mediated Aerobic Oxidative Cyclization

Synlett ◽  
2018 ◽  
Vol 29 (13) ◽  
pp. 1717-1722 ◽  
Author(s):  
Manjula Alla ◽  
Gal Potuganti ◽  
Divakar Indukuri
Keyword(s):  
Bond Formation ◽  
Nitrogen Sources ◽  
Oxidative Cyclization ◽  
Multicomponent Synthesis ◽  
One Pot ◽  
Aerobic Conditions ◽  
One Pot Synthesis ◽  
Quinazoline Derivatives

An efficient one-pot synthesis of quinazolino[4,3-b]quinazoline derivatives has been accomplished, starting from 2-(2-bromo­phenyl)quinazolin-4(3H)-one, aldehydes, and various nitrogen sources under aerobic conditions. The multicomponent protocol is mediated by copper(I) salts and involves amination of 2-(2-bromophenyl)quinazolin-4(3H)-one, followed by condensation with the aldehyde and an oxidative cyclization to give the target compounds in moderate to good yields.

Nano-NiFe2O4 catalyzed microwave assisted one-pot regioselective synthesis of novel 2-alkoxyimidazo[1,2-a]pyridines under aerobic conditions

RSC Advances ◽  
2016 ◽  
Vol 6 (15) ◽  
pp. 12402-12407 ◽  
Author(s):  
Soumen Payra ◽  
Arijit Saha ◽  
Subhash Banerjee
Keyword(s):  
Michael Addition ◽  
Regioselective Synthesis ◽  
Reusable Catalyst ◽  
One Pot ◽  
Aerobic Conditions ◽  
Microwave Assisted ◽  
Ligand Transfer

Here, we have demonstrated regioselective synthesis of novel 2-alkoxy-3-arylimidazo[1,2-a]pyridines using nano-NiFe2O4 as reusable catalyst via one-pot sequential aza-Michael addition, Fe-promoted ligand transfer and C–H imination reactions.

Synthesis of 2-Aryl-3-(arylselanyl)imidazo[1,2-a]pyridines: Copper­-Catalyzed One-Pot, Two-Step Se-Arylation of Selenium with Imidazopyridines and Triarylbismuthanes

Synthesis ◽  
2018 ◽  
Vol 50 (11) ◽  
pp. 2200-2210 ◽  
Author(s):  
Mio Matsumura ◽  
Shuji Yasuike ◽  
Kaito Kondo ◽  
Keiko Kanasaki ◽  
Yuki Murata ◽  
...  
Keyword(s):  
One Pot ◽  
Aerobic Conditions ◽  
General Method

A simple and general method for the synthesis of 2-aryl-3-(arylselanyl)imidazo[1,2-a]pyridines is described. A one-pot, two-step reaction between triarylbismuthanes and diimidazopyridyl diselenides, generated from imidazo[1,2-a]pyridines and Se powder in the presence of CuI and 1,10-phenanthroline, affords 3-selanylimidazopyridines in moderate to excellent yields under aerobic conditions. The reactions proceed efficiently and the selenium and all the aryl groups on bismuth are transferred to the coupling products. Triarylbismuthanes give better results compared to other aryl donors containing elements such as boron, silicon, tin, and iodine.

A cost effective and eco-friendly one-pot process for PC61BM synthesis under aerobic conditions

RSC Advances ◽  
2014 ◽  
Vol 4 (30) ◽  
pp. 15675 ◽  
Author(s):  
Rachana Kumar ◽  
Samya Naqvi ◽  
Neha Gupta ◽  
Suresh Chand
Keyword(s):  
Cost Effective ◽  
One Pot ◽  
Aerobic Conditions

One-pot and Three-Component Synthesis of α-Benzylamino Pyrones

2017 ◽  
Vol 41 (1) ◽  
pp. 42-44 ◽  
Author(s):  
Jilla Sanchooli ◽  
Alireza Hassanabadi
Keyword(s):  
Oxalic Acid ◽  
Aqueous Media ◽  
Reaction Times ◽  
Aromatic Aldehydes ◽  
Secondary Amines ◽  
Reaction Conditions ◽  
One Pot ◽  
Aerobic Conditions ◽  
Salient Features ◽  
High Yields

The synthesis of α-benzylamino pyrones is described involving the reaction of 4-hydroxy-6-methyl-2 H-pyran-2-one with aromatic aldehydes and secondary amines in the presence of oxalic acid and in aqueous media. The salient features of this protocol are aerobic conditions, short reaction times, milder reaction conditions without additives and high yields.

SEARCH FOR KAONIC NUCLEI AT DAΦNE2: THE AMADEUS PROJECT

2007 ◽  
Vol 22 (02n03) ◽  
pp. 374-379
Author(s):  
◽  
JOHANN ZMESKAL
Keyword(s):  
Hadronic Matter ◽  
Interaction Zone ◽  
Hadron Physics ◽  
Nuclear Clusters ◽  
Hadron Masses ◽  
Nuclear Cluster ◽  
Kaonic Nuclei ◽  
Amadeus Project ◽  
Peak Luminosity ◽  
The Ideal

The planned upgrade of DAΦNE at LNF with a peak luminosity in the order of L = 1033 cm -2 s -1 will be the ideal machine to search for and prove the existence of antikaon-mediated deeply bound nuclear cluster. Antikaon-mediated deeply bound nuclear clusters will allow the study of most important problems in hadron physics today, namely, how the hadron masses and hadron interactions change in the nuclear medium and what is the structure of cold dense hadronic matter. AMADEUS will use the KLOE detector with an additional dedicated target and detector system around the interaction zone to perform exclusive measurements – all particles in the formation and decay processes of deeply bound nuclear clusters will be detected. These measurements will prove beyond doubt the anticipated formation production of antikaon-mediated deeply bound nuclear clusters.

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