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Improved syntheses in the pyrimidine series. 1. The use of pyrimidine-thiols

✍ Scribed by Brown, D. J.

Book ID
102889677
Publisher
Wiley (John Wiley & Sons)
Year
1950
Weight
513 KB
Volume
69
Category
Article
ISSN
0368-4075

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✦ Synopsis

Abstract

Syntheses suitable for large laboratory‐scale working, are described for thiocytosine, cytosine, 4‐hydroxypyrimidinc, 4‐amino‐pyrimidine, 2 : 4‐ and 4: 6‐diaminopyrimidincs, uracil, 4‐amino‐6‐hydroxypyrunidine and several of their derivatives. The majority of these syntheses start from thiouracil, which has recently become plentiful; all involve replacement of a thiol‐group by −NH~2~, ‐OH or‐H.

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✍ Ibrahim M. El-Deen 📂 Article 📅 2010 🏛 John Wiley and Sons 🌐 English ⚖ 347 KB

Faculty of,!?&cabn, Suez Canal UniYmity , Port-Said, Egypt Absh.act 3-(F'yraml-S-yl)cod (3) was prepand fmm condensation of 3-(2'-formyl-l'-chlo10vinyl)-cOumarin (1) with hydmzine hydrate at mom temperature, followed by cychtion with base. Salicylaldazine was prepared fmrn methoxylation of 1 to give