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A novel straightforward synthesis of 2,4-disubstituted-1,3,5-triazines via aerobic copper-catalyzed cyclization of amidines with DMF.

Organic letters (2014-06-17)
Xiaowen Xu, Min Zhang, Huanfeng Jiang, Jia Zheng, Yiqun Li
ABSTRAKT

A novel straightforward synthesis of both symmetrical and unsymmetrical 2,4-disubstituted-1,3,5-triazines via aerobic copper-catalyzed cyclization of amidines with DMF as a one-carbon synthon has been developed. The presented method allows synthesizing the products that are currently inaccessible or challenging to prepare with the advantages of operational simplicity, broad substrate scope, and no need for prefunctionalized reagents, making it a highly practical approach to access various 2,4-disubstituted-1,3,5-triazines.

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Copper, insulated wire, 100m, conductor diameter 0.125mm, insulation thickness 0.01mm, polyimide insulation, 99.99%
Copper - O.F.H.C., foil, 10m coil, thickness 0.05mm, coil width 300mm, half hard, 99.95+%
Copper - O.F.H.C., foil, 0.5m coil, thickness 0.075mm, half hard, 99.95+%
Copper - O.F.H.C., foil, 50x50mm, thickness 0.25mm, annealed, 99.95+%
Copper - O.F.H.C., foil, 25x25mm, thickness 2.0mm, half hard, 99.95+%
Copper, insulated wire, 10m, conductor diameter 0.125mm, insulation thickness 0.002mm, 2 micron polyesterimide insulation, 99.9%
Copper - O.F.H.C., wire reel, 5m, diameter 2.5mm, hard, 99.95+%
Copper - O.F.H.C., foil, 0.5m coil, thickness 0.25mm, half hard, 99.95+%
Copper - O.F.H.C., foil, 150x150mm, thickness 0.25mm, half hard, 99.95+%
Copper - O.F.H.C., wire reel, 5m, diameter 0.80mm, as drawn, 99.95+%
Copper - O.F.H.C., foil, 50x50mm, thickness 0.25mm, half hard, 99.95+%
Copper - O.F.H.C., foil, 150x150mm, thickness 0.1mm, half hard, 99.95+%
Copper, insulated wire, 0.5m, conductor diameter 0.1mm, insulation thickness 0.01mm, PTFE (polytetrafluoroethylene) insulation, 99.99%
Copper - O.F.H.C., foil, 150x150mm, thickness 0.5mm, half hard, 99.95+%
Copper, insulated wire, 10m, conductor diameter 0.025mm, insulation thickness 0.005mm, polyurethane insulation, 99.99%
Copper - O.F.H.C., foil, 50x50mm, thickness 0.5mm, half hard, 99.95+%
Copper - O.F.H.C., foil, 0.5m coil, thickness 0.7mm, half hard, 99.95+%
Copper, insulated wire, 10m, conductor diameter 0.4mm, insulation thickness 0.025mm, polyimide insulation, 99.99%
Copper - O.F.H.C., foil, 300x500mm, thickness 2.0mm, half hard, 99.95+%
Copper, tube, 1000mm, outside diameter 0.25mm, inside diameter 0.05mm, wall thickness 0.1mm, as drawn, 99.9%
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Copper, rod, 50mm, diameter 5.0mm, as drawn, 99.999%
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Copper, rod, 500mm, diameter 9.5mm, hard, 99.9%
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Copper, tube, 100mm, outside diameter 10.4mm, inside diameter 10mm, wall thickness 0.2mm, as drawn, 99.9%
Copper, rod, 50mm, diameter 16mm, as drawn, 99.99+%
Copper, insulated wire, 10m, conductor diameter 0.7mm, insulation thickness 0.01mm, polyurethane insulation