ɐ sˈɪnθəsˌɪs ɪnvˈɑːlvɪŋ mˈoːɹ ˈiːzili hˈændəld ɹɪˈeɪdʒənts ɛntˈeɪlz ðə flˌʊɹɹᵻnˈeɪʃən ʌv sɛlˈiːniəm daɪˈɑːksaɪd wɪð sˈʌlfɜː tˈɛtɹɐflˌʊɹɹaɪd:
A synthesis involving more easily handled reagents entails the fluorination of selenium dioxide with sulfur tetrafluoride: