4-(pentafluorosulfanyl)benzenediazonium tetrafluoroborate salt was synthesized and isolated. The pentafluorosulfanyl salt was examined in a wide assortment of reactions to form novel SF
5
-bearing alkenes, alkynes, and biaryl derivatives using Heck-Matsuda, Sonogashira, and Suzuki coupling protocols. Dediazoniation of the salt furnished the corresponding p-SF
5
—C
6
H
4
X,C
6
H
4
OS(O)(CF
3
)═NSO
2
CF
3
, and p-SF
5
—C
6
H
4
—NTf
2
derivatives. The azide derivative p-SF
5
—C
6
H
4
N
3
entered into click chemistry with phenylacetylenes to furnish the corresponding triazoles. Various SF
5
-bearing alkenes were synthesized by coupling reactions using a metal catalyst. Fluorodediazoniation selectively furnished the fluoro derivative p-SF
5
—C
6
H
4
F. Homolytic dediazoniation gave the unsymmetrical biaryls, thus demonstrating the broad utility of pentafluorosulfanyl diazonium salts as building blocks of SF5-aromatics that are in high demand in many branches of chemistry including biomedicine and materials chemistry.
合成并分离了4-(五
氟硫基)
苯重
氮四
氟硼酸盐。使用 Heck-Matsuda、Sonogashira 和 Suzuki 偶联反应方法,对五
氟硫基盐进行了广泛的反应研究,形成了新型的含 SF5 基团的
烯烃、
炔烃和双芳基衍
生物。重
氮化盐的去重
氮化反
应得到了相应的 p-SF5— X、
C6H4OS(O)(
CF3)═NSO2 和 p-SF5— —
NTf2 衍
生物。偶
氮三唑衍
生物 p-SF5— N3 与
苯乙炔进行了“点击
化学”反应,得到了相应的三
唑类化合物。使用
金属
催化剂进行偶联反应合成了各种含 SF5 基团的
烯烃。
氟去重
氮化反应选择性地得到了
氟衍
生物 p-SF5— F。自由基去重
氮化反
应得到了非对称的双芳基化合物,从而展示了五
氟硫基重
氮化盐作为 SF5-芳香族化合物的建筑基块在
生物医学和
材料化学等许多
化学领域中的广泛应用价值。