Baghu turquoise is from the Kuh Zar mine, a gold and copper deposit, and Shahr-I Babak turquoise comes from the Meiduk mine, a porphyry copper deposit. The mining strategies at Kuh Zar and Meiduk are ...

Copper Spreads Spike Again as Goldman Says Shortages to Worsen A key one-day copper price spread surged to the highest level in four years on the London Metal Exchange, placing fresh strains on ...

Disclosed here is a highly enantioselective difunctionalization of azetines for convenient access to chiral 2,3-disubstituted azetidines, a family of important scaffolds previously lacking general ...