Tetrahedron Letters p. 3775 - 3776 (1986)
Update date:2022-08-17
Topics:
Becker, D.
Gottlieb, L.
Loewenthal, H. J. E.
Oxidative alkaline cleavage of the title compound 3 gave unexpectedly in high yields the α-keto acid 9a instead of the aldehyde acid 5 (or its tautomer 7).The latter could be prepared via regioselective mono-ketalisation of compound 3.The structure assignment of 9, and differentiation between 5/7 and the isomer 10, were effected using natural abundance 13C-13C coupling techniques.
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