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Coumarinyl derivatives

With aromatic aldehydes instead of formaldehyde, analogous bis-thio-coumarinyl derivatives (32) are formed, which undergo dehydration with acetic anhydride to give the pentacyclic systems 33. Some aldehydes... [Pg.127]

See other pages where Coumarinyl derivatives is mentioned: [Pg.291] [Pg.175] [Pg.29] [Pg.175] [Pg.291] [Pg.175] [Pg.29] [Pg.175] [Pg.33] [Pg.158] [Pg.296] [Pg.158] [Pg.380] [Pg.594] [Pg.195]