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Synthesis of 1,2,4-thiazaphospholes by reactions of bis(chloromethyl)phosphinothioic isothiocyanate with amine hydrohalides

✍ Scribed by R. Kh. Bagautdinova; M. A. Pudovik

Book ID
111459370
Publisher
Springer
Year
2007
Tongue
English
Weight
28 KB
Volume
77
Category
Article
ISSN
1070-3632

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However, many side reactions occur, in contrast to the cyclization of nitrosouracils. When, for instance, a solution of 4-methylamino-5-p-nitrobenzylideneaminouracil(Ia) in nitrobenzene is refluxed for only a short time (2-5 min), fractional crystallization of the product leads to a 40 % yield of 7-