N. Dobson, D. G. McDowell, D. J. French, L. J. Brown, J. M. Mellor and T. Brown. Chem. Commun. 1234-1235, 2003.
Chunsen Bai, Piotr Klimkowski, Cheng Jin, Jagannath Kuchlyan, Afaf H. El-Sagheer* and Tom Brown*. Org. Biomol. Chem. 20, 8618-8622, 2022.