D. Graham, J. A. Parkinson and T. Brown. J. Chem. Soc., Perkin Trans. 1 1131-1138, 1998.
Chunsen Bai, Piotr Klimkowski, Cheng Jin, Jagannath Kuchlyan, Afaf H. El-Sagheer* and Tom Brown*. Org. Biomol. Chem. 20, 8618-8622, 2022.