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Syntheses of Indigoid Dye Precursors and Bioactive Compounds Via Condensation of 1,2- and 1,4-Diones with Thiohydantoins

✍ Scribed by Pardasani, R. T.; Pardasani, P.; Ojha, C. K.; Sherry, D.; Chaturvedi, V.; Sharma, I.


Book ID
115445029
Publisher
Taylor and Francis Group
Year
2002
Tongue
English
Weight
96 KB
Volume
177
Category
Article
ISSN
1042-6507

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## Abstract In contrast to earlier reported unsuccessful experiments the Michael addition of prop‐2‐enal to 2‐methylcyclopentane‐1,3‐dione (1) affords 3‐(1‐methyl‐2,5‐dioxocyclopentyl)propanal (3) in 90% yield, if the reaction is carried out in water without a basic catalyst. This aldehyde is conve