Researchers at McGill University have discovered a new, more environmentally friendly way to make ketones, an important chemical ingredient in pharmaceuticals.  While ketones are found in a wide range of useful chemicals, they are commonly prepared through energy-intensive, multi-step technologies that create significant chemical waste.  In an article published online last month in Nature Chemistry, the McGill scientists demonstrate how carbon monoxide, a widely available by-product of combustion, can instead be used to form high-energy chemicals that react directly with benzene to