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A Practical and Efficient Large-Scale Preparation of (4 R ,5 S )- N -Propenoyl-1,5- dimethyl-4-phenylimidazolidin-2-one. A Simple Procedure for the Preparation of N -Acylimidazolidin-2-ones and N -Acylbornane 2,10-Sultams

✍ Scribed by Clark, William M.; Bender, Corey


Book ID
120830179
Publisher
American Chemical Society
Year
1998
Tongue
English
Weight
111 KB
Volume
63
Category
Article
ISSN
0022-3263

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Cascade assembly of N,Nβ€²-dialkylbarbitur
✍ Michail N. Elinson; Anatolii N. Vereshchagin; Nikita O. Stepanov; Pavel A. Belya πŸ“‚ Article πŸ“… 2010 πŸ› Elsevier Science 🌐 French βš– 249 KB

Cascade assembly of N,N 0 -dialkylbarbituric acids and aldehydes in the presence of bromine leads to the selective and efficient formation of substituted 1,5-dihydro-2H,2 0 H-spiro(furo[2,3-d]pyrimidine-6,5 0pyrimidine)-2,2 0 ,4,4 0 ,6 0 -(1 0 H,3H,3 0 H)-pentones in 70-88% yields via a complex casc