Research speed reading in 2021. Synthetic Route of 2682-49-7, Catalysts allow a reaction to proceed via a pathway that has a lower activation energy than the uncatalyzed reaction. In a document type is Article, and a compound is mentioned, 2682-49-7, Thiazolidin-2-one, introducing its new discovery.
A two-steps synthesis of thiazolidin-4-ones, from alpha-tetralone 6 or thiochroman-4-one 7, catalyzed by acids is described. The reactions of alpha-tetralone 6 or thiochroman-4-one 7, with substituted thiosemicarbazides, under AcOH or heteropolyacid (HPAs) catalysis afford thiosemicarbazones 8 and 9 in excellent yields. Condensations of the previous compounds 8 and 9 with alpha-bromoester, under sulfuric acid or heteropolyacid catalysis, yield the corresponding thiazolidin-4-ones 10 and 11.
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Reference：
Quinuclidine – Wikipedia,
Quinuclidine | C7H433N | ChemSpider