The coupling of aryl halides with copper at very high temperature is called the Ullmann reaction, which is of broad scope and has been used to prepare many symmetrical biaryls. However, when a mixture of two different aryl halides is used, there are three possible biaryl products.
Copper is a superb cooking metal, conducting heat so evenly it has unparalleled control, especially at low temperatures.
'Copper' is my first period piece. It's funny because I've been doing a lot of episodes of 'Elementary' with Johnny Lee Miller and Lucy Liu; they keep bringing me back on the show, and so I go from being an outstanding black doctor to being a kind of hood, ex-car thief who went through rehab in 'Elementary.'
The Philippines has vast minerals that are still untapped. It has one of the world's largest deposits of gold, nickel, copper and chromite. Through responsible mining, we intend to generate more revenues from the extraction of these resources.
Globalization has made copper and other minerals more valuable, and Ghana and Kenya have recently discovered mineral resources.
My mother was a sociologist and an intellectual, and my father was an industrialist with a business in copper and aluminum wire. He was very strict and he wanted me to work in the family business - for him, the worst thing was having a daughter who worked in fashion.
Even before the discovery of copper South Australia had turned the corner.
Galvanized plumbing was used years ago. Now we use copper.
I live in the 20th century. I have copper rivets on my jeans.
The active and abandoned tailings ponds I have photographed, for example, are strangely beautiful - yet they are also chock full of cyanide, which is used in the recovery of microscopic particles of gold from the waste tailings of copper mines.
