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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 33, Number 8
BKCSDE 33(8)
August 20, 2012 

Concise Synthetic Approaches to Naturally Occurring β-Hydroxypyranochalcones: First Total Synthesis of Purpurenone, Its Derivative, and Praecansone B
Xue Wang, Yong Rok Lee*, Sung Hong Kim
β-Hydroxypyranochalcone, Purpurenone, Praecansone B, Pongapinone A, Benzopyran formation
The total synthesis of biologically interesting β-hydroxypyranochalcones, purpurenone (1), its derivative 2, praecansone B (3), and pongapinone A (4) has been accomplished starting from commercially available 2,4- dihydroxyacetophenone or 6-methoxy-2,4-dihydroxyacetophenone in 3 steps by a convergent strategy through benzopyran formations, O-methylations, and coupling reactions.
2647 - 2650
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