Title of article :
New syntheses of dalbergichromene and dalbergin from vanillin via neoflavene intermediate
Author/Authors :
Li، نويسنده , , Sie-Rong and Chen، نويسنده , , Liang-Yeu and Tsai، نويسنده , , Jui-Chi and Tzeng، نويسنده , , Jing-Yu and Tsai، نويسنده , , Ian-Lih and Wang، نويسنده , , Eng-Chi، نويسنده ,
Issue Information :
هفته نامه با شماره پیاپی سال 2007
Abstract :
In this Letter, naturally occurring dalbergichromene and dalbergin were synthesized from a common neoflavene intermediate, which was derived from vanillin. The giving neoflavene intermediate was debenzylated with AlCl3 to yield dalbergichromene in 39% total yield, and it was oxidized by DDQ, and subsequently debenzylated by Pd(OH)2/C and cyclohexene in refluxing ethanol to give dalbergin in 31% total yield.
Keywords :
Neoflavene , Neoflavonoid , Dihydrodalbergichromene , Dalbergichromene , Dalbergin
Journal title :
Tetrahedron Letters
Journal title :
Tetrahedron Letters
