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ChemInform Abstract: [2 + 2] Cycloaddition of Chlorosulfonyl Isocyanate to Allenylsugar Ethers.
First published: 31 May 2010
Abstract
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ChemInform Abstract
The [2 + 2] cycloaddition of allenes and chlorosulfonyl isocyanate provides β-lactams with a moderate stereoselectivity. A stereochemical model of the transition state of the cycloaddition is proposed, based on the lowest energy conformation of the cumulene.
