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Hysterin

A neat synthesis of bulnesene (632) has been achieved in which the key steps are an intramolecular photochemical addition and a subsequent fragmentation (Scheme 46). ° Another transformation of eremanthin (633) into estahatin (634) has been accomplished. Considerable activity in the field of pseudoguaianolide synthesis has resulted in the conversion of the previously reported bicyclic ketones (635) and (636) (Vol. 10, p. 90) into aromaticin (637), aromatin (638), and damsinic acid (639). Vandewalle and co-workers have also capitalized on earlier syntheses of key intermediates (Vol. 9, p. 151 Vol. 10, p. 89) to convert (640) into carpesiolin (641) and (642) into hysterin (643), which required structural revision as a result of this synthesis.This revision has been confirmed by X-ray analysis. Roberts and Schlessinger have... [Pg.82]

Several sesquiterpene lactones (parthenin, coronopilin, tetraneurin A, hysterin, la-hydroxy-4 -0-acetylpseudoguaian-6, 12-olide, 4a-0-acetylpseudoguaian-6j -olide)... [Pg.148]

See other pages where Hysterin is mentioned: [Pg.376]    [Pg.401]    [Pg.377]    [Pg.90]    [Pg.153]    [Pg.90]    [Pg.149]    [Pg.168]    [Pg.376]    [Pg.401]    [Pg.377]    [Pg.90]    [Pg.153]    [Pg.90]    [Pg.149]    [Pg.168]   
See also in sourсe #XX -- [ Pg.376 ]

See also in sourсe #XX -- [ Pg.376 ]

See also in sourсe #XX -- [ Pg.376 ]

See also in sourсe #XX -- [ Pg.90 ]

See also in sourсe #XX -- [ Pg.90 ]

See also in sourсe #XX -- [ Pg.29 , Pg.90 ]

See also in sourсe #XX -- [ Pg.148 ]



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