Boese, Roland; Haas, Alois; Hess, Thomas:

[4 + 2]Cycloadditions of halothiazyls with 2-chloropentafluoro-1,3-butadiene.

In: Chemische Berichte (Chem.Ber.), Jg. 126 (1993) ; Nr. 7, S. 1529-1531
ISSN: 0009-2940
Zeitschriftenaufsatz / Fach: Chemie
Reactions of (ClSN)3 or FSN with 2-chloropentafluoro-1,3-butadiene provide the 1l4,2-thiazines I (R = Cl, F). Fluorination of I (R = Cl) with KF gives 88% I (R = F). MeOH reacts with I (R = F) to form I (R = OMe). The structure of I (R = OMe) was detd. by single-crystal X-ray diffraction anal. With water I (R = Cl) forms the 1,2-thiazin-3-one 1-oxide II.

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