Journal Article Flavonoids. I. Synthesis of 2,2-Dialkyl-D3-isoflavenes from Coumarins Citation Cook, C., Corley, R. C., & Wall, M. (1965). Flavonoids. I. Synthesis of 2,2-Dialkyl-D3-isoflavenes from Coumarins. Journal of Organic Chemistry, 30, 4114. Abstract