Rhodium-catalyzed phenylthiolation reaction of heteroaromatic compounds using α-(phenylthio)isobutyrophenone
作者:Mieko Arisawa、Fumihiko Toriyama、Masahiko Yamaguchi
DOI:10.1016/j.tetlet.2011.02.077
日期:2011.5
In the presence of catalytic amounts of RhH(PPh3)4 and 1,2-bis(diphenylphosphino)ethane (dppe), 1,3-benzothiazoles, 1,3-benzoxazoles, and benzothiophene reacted with α-(phenylthio)isobutyrophenone giving 2-phenylthio derivatives. Reactive monocyclic heteroaromatics, 1-methyl-1,2,3,4-tetrazole and 2-cyanothiophene were also converted into the 5-phenylthio derivatives. The use of an appropriate phenylthio
在催化量的RhH(PPh 3)4和1,2-双(二苯基膦基)乙烷(dppe)存在下,1,3-苯并噻唑,1,3-苯并恶唑和苯并噻吩与α-(苯硫基)异丁酮反应2-苯硫基衍生物。反应性单环杂芳族化合物,1-甲基-1,2,3,4-四唑和2-氰基噻吩也被转化为5-苯硫基衍生物。使用适当的苯硫基转移试剂对于将杂芳族C–H键有效催化转化为C–S键至关重要。