A series of ice mixtures containing carbon monoxide (CO), carbon dioxide (CO(2)), and molecular oxygen (O(2)) with varying carbon-to-oxygen ratios from 1 : 1.5 to 1 : 4 were irradiated at 10 K with energetic electrons to derive formation mechanisms and destruction pathways of carbon monoxide (CO), carbon dioxide (CO(2)), and carbon trioxide (CO(3)) in extraterrestrial, low temperature ices. Rea...

Since the rst report by Heck et al. on the palladium-catalyzed reaction of carbon monoxide with aryl halides and alcohols or amines, transition metal catalyzed cross-coupling reactions have been developed as a valuable method for creating carbon– carbon bonds. In particular, rhodium-catalyzed carbonylation with a variety of substrates has been studied. These reactions require the addition of C...

Carbon monoxide is colorless, odorless and non-irritating gas that is produced via incomplete combustion. It can be produced from both natural and man-made sources. A few of the most important sources include exhaust from automobiles, inadequately adjusted appliances, furnaces, and fireplaces. Carbon monoxide released into the atmosphere converts to carbon dioxide. However, this can take up to ...

Carbon monoxide (CO) is an important building block in industrial organic chemistry. Organic substrates containing a carbon-carbon unsaturation may undergo an addition of CO, normally resulting in the formation of a new carbon-carbon sequence, where one carbon atom is provided by carbon monoxide, the other ones originating from the unsaturated substrate, e.g. an olefin or an acetylenic derivati...

The development of a novel electrochemical methodology to generate carbon-11 carbon monoxide ([11C]CO) from cyclotron-produced carbon-11 carbon dioxide ([11C]CO2) using Ni(cyclam) and Zn(cyclen) complexes is described. This methodology allows up to 10% yields of [11C]CO from [11C]CO2. Produced [11C]CO was subsequently converted to [11C]N-benzylbenzamide under mild conditions with a radiochemica...

The Wood-Ljungdahl pathway allows acetogenic bacteria to grow on a number of one-carbon substrates, such as carbon dioxide, formate, methyl groups, or even carbon monoxide. Since carbon monoxide alone or in combination with hydrogen and carbon dioxide (synthesis gas) is an increasingly important feedstock for third-generation biotechnology, we studied CO metabolism in the model acetogen Acetoba...

BACKGROUND Carbon monoxide, albeit common, is rarely associated with renal failure. We report a case of CO-associated kidney failure requiring short-term dialysis. CASE REPORT A 33 year-old male was found unconscious in a bathroom equipped with a propane-gas heater. The duration of exposure to carbon monoxide was unknown. The patient was transported to a regional hyperbaric centre;the carboxy...

A cometary ice analog sample consisting primarily of carbon suboxide ice (C3O2) was produced from the irradiation of its precursor, carbon monoxide. This carbon suboxide sample was subjected to irradiation with energetic electrons at 10K to simulate the interaction of carbon suboxide-rich cometary analog ices with ionizing radiation. The destruction of carbon suboxide as well as the production ...

Carbon monoxide (CO) is generated in living organisms during the degradation of heme by the enzyme heme oxygenase, which exists in constitutive (HO-2 and HO-3) and inducible (HO-1) isoforms. Carbon monoxide gas is known to dilate blood vessels in a manner similar to nitric oxide and has been recently shown to possess antiinflammatory and antiapoptotic properties. We report that a series of tran...

Carbon monoxide (CO) is generated in living organisms during the degradation of heme by the enzyme heme oxygenase, which exists in constitutive (HO-2 and HO-3) and inducible (HO-1) isoforms. Carbon monoxide gas is known to dilate blood vessels in a manner similar to nitric oxide and has been recently shown to possess antiinflammatory and antiapoptotic properties. We report that a series of tran...