Directed metallations of 4-ethylidenetetronic acid and its derivatives as a synthetic entry to natural 4-oxy-2-furanones

Regiospecific alkylation of tetronic acids

Anita Wengel, Torsten Reffstrup, Per M. Boll · Tetrahedron · 1979 · 26 citations

Natural Sciences, Chemistry, Organic Chemistry +4

The structures of c17-obtusilactone dimer and two c21-obtusilactones

Masatake Niwa, Masanobu Iguchi, Shosuke Yamamura · Tetrahedron Letters · 1975 · 26 citations

Natural Sciences, Chemistry, Medicinal Chemistry +7

The isolation and structure of obtusilactone

M Niwa · Tetrahedron Letters · 1975 · 24 citations

Life Sciences, Botany, Plant Anatomy +1

A novel kinetic deprotonation at a vinylic carbon in a pyrone ring

T. A. Carpenter, Peter Jenner, Finian J. Leeper et al. · Journal of the Chemical Society Chemical Communications · 1980 · 21 citations

Natural Sciences, Chemistry, Chemical Kinetics +3

β-Deprotonation by lithium di-isopropylamide. Vinyl carbanions from oxygen heterocycles in the synthesis of carboxylic acids in the benzofuran, flavone, and coumarin series and in the regiospecific acylation of 2,6-dimethylchromone

Ana M. B. S. R. C. S. Costa, Francis M. Dean, Michael A. Jones et al. · Journal of the Chemical Society Chemical Communications · 1980 · 19 citations

Pharmacy, Chemistry, Medicinal Chemistry +13