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Syntheses Of Ketene Dithioacetal Derivatives Of 2,5-Piperazinedione

✍ Scribed by Wang, Xiaolun; Chen, Xu; Lian, Hongzhen; Pan, Yi; Shi, Yaozeng

Book ID
121016698
Publisher
Taylor and Francis Group
Year
1999
Tongue
English
Weight
233 KB
Volume
29
Category
Article
ISSN
0039-7911

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## Abstract 1‐Phenyl‐3,5‐dioxopyrazolidine 1 reacts with carbon disufide and alkyl halides in presence of excess of sodium acetate in dimethylformamide to afford the ketene dithioacetals 3a‐h. The ^13^C chemical shift assignments of these compounds were made on the basis of two‐dimensional nmr stud