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Polyvinylpolypyrrolidone-supported boron trifluoride: a mild and efficient catalyst for the synthesis of 1,8-dioxooctahydroxanthenes and 1,8-dioxodecahydroacridines

Crossref DOI link: https://doi.org/10.1007/s00706-014-1206-9

Published Online: 2014-04-23

Published Print: 2014-09

Update policy: https://doi.org/10.1007/springer_crossmark_policy