Chlorinated aza-arenes can be used as active ingredients inmany agrochemicals,1 pharmaceuticals,2 and other functionalchemicals.3 As reactive intermediates, they also have beenwidely applied for building a carbon−carbon bond and acarbon-hetero bond by direct reactions with a nucleophile,4 orthrough organometallic reactions such as Suzuki coupling,5Stille reaction,6 Heck reaction,7 etc.8 (Scheme 1).