Other natural productsOther natural products U 0800Chlorination of Tectochrysin and Pinostrobin in Methanol. -The chlorination of natural flavonoids (I) and (III) gives rise to their 6,8-dichloro derivatives. Under the reaction conditions, dichloropinostrobin (V) is transformed further into a tetrachloromethoxy derivative (VI). -(KULMAGAMBETOVA, E. A.; SEITEMBETOVA, A. G.; KULYJASOV, A. T.; RALDUGIN*, V. A.; GATILOV, Y. V.; SHAKIROV, M. M.; ADEKENOV, S. M.; TOLSTIKOV, G. A.; Russ. Chem. Bull. 52 (2003) 3, 752-754; Vorozhtsov Inst. Org. Chem., Sib. Branch Russ. Acad. Sci., Novosibirsk 630090, Russia; Eng.) -Staver 41-219
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