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Novel and Efficient Cyclization Procedure for the Synthesis of 2,5-Disubstituted-1,3,4-thiadiazoles Without Using Any Ring-Closing Reagents

โœ Scribed by Lin, Qi; Zhang, You-Ming; Li, Man-Lin; Wei, Tai-Bao


Book ID
111943961
Publisher
Taylor and Francis Group
Year
2012
Tongue
English
Weight
455 KB
Volume
42
Category
Article
ISSN
0039-7911

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A novel one-pot and efficient procedure
โœ Mohammad Reza Mohammadizadeh; Mojtaba Bahramzadeh; S. Zainabkhatoon Taghavi ๐Ÿ“‚ Article ๐Ÿ“… 2010 ๐Ÿ› Elsevier Science ๐ŸŒ French โš– 728 KB

A novel and practical one-pot procedure is described for the preparation of several new of 3H-spiro[isobenzofuran-1,6 0 -pyrrolo[2,3-d]pyrimidine]-2 0 ,3,4 0 ,5 0 -tetraones based on the addition reaction of ninhydrin and 6-aminouracils followed by oxidative cleavage of their corresponding dihydroxy