Issue Date: July 16, 2012
Australian chemists have spotted what they say is the first definitive example of a tetrazetidine, a molecule containing an unprecedented four-membered nitrogen ring (J. Am. Chem. Soc., DOI: 10.1021/ja303019y). The tetrazetidine system is one of the few simple chemical structures that has not yet been synthesized with any certainty. Over the past 20 years, David Camp and Ian . . .
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