New Synthesis of 5,7 – Dimethoxyflavone and 5,7,3′, 4′ – Tetramethoxyflavone

Rajia Sultana; Rashadul Hossain; Abdul Jalil Miah; Azizul Islam

Article | Open Access

New Synthesis of 5,7 – Dimethoxyflavone and 5,7,3′, 4′ – Tetramethoxyflavone

Rajia Sultana*, Rashadul Hossain, Abdul Jalil Miah¹ and Azizul Islam¹

¹Department of Chemistry, Chittagong University of Engineering and Technology, Chittagong - 4349, (Bangladesh) ²Department of Chemistry, University of Rajshahi, Rajshahi - 6205 (Bangladesh)

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ABSTRACT:

5,7–Dimethoxyflavone (9) and 5,7,3',4' - tetramethoxyflavone1 (10) were isolated from the rhizomes of Blesenbergia pandurata (Roxb.) Schltr (black rhizomes) (local name: Krachi-dum); along with another seven flavone and two flavanones, have been synthesized by two different routes both of them are starting from phloroacetophenone (1). The products have been characterized on the basis of spectral analysis.

KEYWORDS:

5,7-DImethoxylfavone; 5,7,3',4'-tetramethoxyflavone