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118CSpr21L22p1 duration 26 minutes 13 seconds 118CSpr21L22p1 118CSpr21L22p1	118CSpr21L22p1 Heterocyclopentadienes nitrogen +19 More From Sarah Lievens 0 likes 355 plays 0
118AWin21L22p2 duration 14 minutes 18 seconds 118AWin21L22p2 118AWin21L22p2	118AWin21L22p2 Paal-Knorr Synthesis of Heterocyclopentadienes carbonyl +19 More From Sarah Lievens 0 likes 334 plays 0

118CSpr21L22p1