Post 390003 (https://www.thevespiary.org/talk/index.php?topic=12782.msg39000300#msg39000300)
(flipper: "LSD from LSA synth qeustion", Tryptamine Chemistry)to give 2.3g of crude product, which consisted of 57 weight% of the diethylamides of D-Lysergic acid (I) and D-Isolysergic acid (II) (81% yield calculated on the starting acid) and the rest being chiefly Imidazole.
I dont understand it. He says that it's a 81% yield calculated on the starting acid. That 57% puzzles me but it's a weight percentage and not molar. ::)