Issue 19, 1996

Tether-enforced reversal of regioselectivity: head-to-head [4 + 4] photocycloaddition of 2-pyridones

Abstract

Symmetric 3,3′-attachment of a three-atom chain between two pyridones overrides the head-to-tail regioselectivity found in intermolecular photodimerization reactions and gives a nearly quantitative yield of the head-to-head [4 + 4] cycloadduct containing contiguous quaternary centres.

Article information

Article type
Paper

Chem. Commun., 1996, 2249-2250

Tether-enforced reversal of regioselectivity: head-to-head [4 + 4] photocycloaddition of 2-pyridones

S. McN. Sieburth and B. Siegel, Chem. Commun., 1996, 2249 DOI: 10.1039/CC9960002249

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