01321nas a2200181   4500008004100000022001400041245008800055210006900143260000900212300001400221490000700235520069700242100002100939700002000960700002200980700002501002856011201027       2017                        eng d  a1463-926200aUnified strategy for silver-, base-, and oxidant-free direct arylation of C-H bonds0 aUnified strategy for silver base and oxidantfree direct arylatio  cMAY   a2111-21170 v193 a<p>Here, we report a dual catalytic approach for room temperature direct arylation of C-H bonds with aryldiazonium salts as a simple aryl group donor, also working as an internal oxidant via C-N-2 bond cleavage. This unified strategy has been achieved by the synergistic combination of visible-light metal-free photoredox and palladium catalysis under silver-, base-and/or additive-free conditions. The broad substrate scope, functional group tolerance, excellent regioselectivity and redox-neutral conditions of this process make it attractive for the effective synthesis of a wide range of important N-heterocyclic commodities such as dibenzo [b,d]azepine, carbazole and phenanthridine.</p>1 aSahoo, Manoj, K.1 aMidya, Siba, P.1 aLandge, Vinod, G.1 aBalaraman, Ekambaram  uhttps://library.ncl.res.in/content/unified-strategy-silver-base-and-oxidant-free-direct-arylation-c-h-bonds