Development of novel phenolic antioxidants. Synthesis, structure determination, and analysis of spiro[2,3-dihydro-5-hydroxy-4,6,7-trimethylbenzofuran-2,1'-cyclopropane]
The Chemistry of Vitamin E. XXIII. A New Synthesis of 2,4,6,7-Tetramethyl-5-hydroxycoumaran and of 2-Methyl-5-hydroxycoumaran. Oxidation Products of the Tetramethylcoumaran1