01207nas a2200169 4500008004100000245015300041210006900194260000800263300001400271490000600285520052300291100002100814700002000835700002600855700002500881856013100906 2017 eng d00aRoom-temperature direct arylation of anilides under external oxidant-free conditions using CO2-Derived Dimethyl Carbonate (DMC) as a 'green' solvent0 aRoomtemperature direct arylation of anilides under external oxid cAUG a7565-75690 v23 a

Here, an efficient catalytic protocol for direct C-H bond arylation of anilides under base- and external oxidant-free conditions is reported. This reaction proceeds readily at room temperature using CO2-derived dimethyl carbonate (DMC) as a green solvent under visible-light dual catalysis. Later, application of our strategy for the gram-scale synthesis of Boscalid has been successfully shown. An unprecedented unsymmetrical bis-arylation of anilides is also demonstrated under mild, redox-neutral conditions.

1 aSahoo, Manoj, K.1 aRana, Jagannath1 aSubaramanian, Murugan1 aBalaraman, Ekambaram uhttps://library.ncl.res.in/content/room-temperature-direct-arylation-anilides-under-external-oxidant-free-conditions-using-co201362nas a2200169 4500008004100000245010900041210006900150260000800219300001400227490000700241520072800248100002000976700002600996700002101022700002501043856012401068 2019 eng d00aReusable cobalt catalyst for reversible acceptorless dehydrogenation and hydrogenation of N-Heterocycles0 aReusable cobalt catalyst for reversible acceptorless dehydrogena cMAY a2449-24570 v113 a

The development of robust catalytic systems based on basemetals for reversible acceptorless dehydrogenation (ADH) and hydrogenation of feedstock chemicals is very important in the context of ` hydrogen storage'. Herein, we report a highly efficient reusable cobalt-based heterogeneous catalyst for reversible dehydrogenation and hydrogenation of N-heterocycles. Both the ADH and the hydrogenation processes operate under mild, benign conditions.

1 aJaiswal, Garima1 aSubaramanian, Murugan1 aSahoo, Manoj, K.1 aBalaraman, Ekambaram uhttps://library.ncl.res.in/content/reusable-cobalt-catalyst-reversible-acceptorless-dehydrogenation-and-hydrogenation-n01316nas a2200157 4500008004100000022001400041245011600055210006900171260000900240300001400249490000700263520071100270100002100981700002501002856013101027 2019 eng d a1463-926200aRoom temperature catalytic dehydrogenation of cyclic amines with the liberation of H-2 using water as a solvent0 aRoom temperature catalytic dehydrogenation of cyclic amines with cAPR  a2119-21280 v213 a

Catalytic dehydrogenation of cyclic amines, in particular partially saturated N-heterocycles to N-heterocyclic arenes, with the removal of molecular hydrogen as the sole byproduct in water is reported. This dehydrogenation reaction proceeds smoothly under very mild and benign conditions and operates at room temperature. This distinctive reactivity has been achieved under dual catalytic conditions by merging the visible-light active [Ru(bpy)(3)](2+) as the photoredox catalyst and a newly synthesized cobalt complex as the proton-reduction catalyst. A detailed mechanistic study (control experiments, electrochemical studies, UV-visible experiments) is presented for the present dual catalysis.

1 aSahoo, Manoj, K.1 aBalaraman, Ekambaram uhttps://library.ncl.res.in/content/room-temperature-catalytic-dehydrogenation-cyclic-amines-liberation-h-2-using-water-solvent