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13.11.1.4.1.3.3 Method 3: By Fluorine

DOI: 10.1055/sos-SD-013-00458

Koutentis, P. A.Science of Synthesis, (200413322.

3,4-Dichloro-1,2,5-thiadiazole (13) can be converted into 3,4-difluoro-1,2,5-thiadiazole (46) by reaction with potassium fluoride in dry sulfolane. 3-Chloro-4-fluoro-1,2,5-thiadiazole is also formed as a minor product (Scheme 30).[‌111‌]

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