Conversion of 2,4,6-triphenylpyrylium perchlorate to a compound of the pyrimidine series
✍ Scribed by M. P. Zhdanova; É. A. Zvezdina; G. N. Dorofeenko
- Book ID
- 112326231
- Publisher
- Springer US
- Year
- 1975
- Tongue
- English
- Weight
- 51 KB
- Volume
- 11
- Category
- Article
- ISSN
- 0009-3122
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## Abstract 2‐Alkyl‐, 2‐aryl‐, and 2‐halo‐substituted derivatives of 7‐methyl‐6‐fluoro‐1,3,4‐thiadiazolo[3,2‐__a__]pyrimidin‐6‐one (**3**) were prepared by reaction of 2‐substituted 5‐amino‐1,3,4‐thiadiazoles (**1**) and ethyl 2‐fluoroacetoacetate (**2**) in polyphosphoric acid. A convenient proced