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Trine P. Petersen, Dr. Anastasios Polyzos , Dr. Matthew O'Brien, Dr. Trond Ulven, Dr. Ian R. Baxendale and Prof. Steven V. Ley The Oxygen-Mediated Synthesis of 1,3-Butadiynes in Continuous Flow: Using Teflon AF-2400 to Effect Gas/Liquid Contact ChemSusChem 5

Version of Record online: 21 SEP 2011 | DOI: 10.1002/cssc.201100339

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The gas is always greener: A continuous flow Glaser–Hay coupling reaction system, mediated by molecular oxygen, is developed based on a tube-in-tube gas/liquid reactor/injector. The system uses a semi-permeable Teflon AF-2400 membrane to effect rapid gas/liquid contact in flow, affording homogeneous solutions of oxygen. Measurements of out-gassing downstream of the back-pressure regulator indicate the onset of saturation is reached after about 16 seconds.

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