Cobalt-Catalyzed -C(sp)-H Amidation of Benzaldehydes with Dioxazolones Using Transient Directing Groups.

An efficient and convenient cobalt-catalyzed -C(sp)-H amidation of benzaldehydes employing dioxazolones as the aminating reagent has been developed. The key feature of this protocol is the use of green and economic earth-abundant metals cobalt as the catalyst with the -chloroaniline as the transient directing group. Further application of our approach was demonstrated by the synthesis of C1r serine protease inhibitor and elastase inhibitor .

Spatial organization and activity patterns of the masked palm civet () in central-south China.

Movement and activity patterns are important components of life history, being central to resource acquisition and defense, mating behavior, and individual survival and fitness. Here, we present results from the 1st systematic radiotracking study of the masked palm civet (), a widespread viverrid found in subtropical and tropical forests of Asia. From June 2004 to November 2007, we radiotracked 12 masked palm civets (5 males and 7 females) in central-south China.