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Naturally occurring compounds related to phenalenone. Part 8. Structure and synthesis of demethylherqueichrysin

Tipo de material: TextoTextoSeries ; Journal of the Chemical Society, Perkin Transactions 1, (22), p.2443-2448, 1977Trabajos contenidos:
  • Frost, David A
  • Halton, David D
  • Morrison, George A
Recursos en línea: Resumen: The isolation of herqueichrysin from Penicilhum herqueiand its conversion into atrovenetin (1 b)are described. The structure of dernethylherqueichrysin (3a)(8,9-dihydro-2,3,4,7-tetrahydroxy-6,8,8,9-tetramethylphenaleno[1.2-blfuran-I -one)ts established by synthesisfrom 9-hydroxy-6.7.8-trimethoxy-4-methyl-3- (3-methylbut-2-enyloxy)- phenalen-I -one ( 6 ) . The isolation of partially racemised atrovenetin (1 b)and deoxyherqueinone (la)from P. herquei is also described.
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The isolation of herqueichrysin from Penicilhum herqueiand its conversion into atrovenetin (1 b)are described. The structure of dernethylherqueichrysin (3a)(8,9-dihydro-2,3,4,7-tetrahydroxy-6,8,8,9-tetramethylphenaleno[1.2-blfuran-I -one)ts established by synthesisfrom 9-hydroxy-6.7.8-trimethoxy-4-methyl-3- (3-methylbut-2-enyloxy)- phenalen-I -one ( 6 ) . The isolation of partially racemised atrovenetin (1 b)and deoxyherqueinone (la)from P. herquei is also described.

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