Heasley, V. L., Shellhamer, D. F., & Chappell, A. E. (1998). Reactions of carbonyl-conjugated alkynes with N-bromosuccinimide and N-iodosuccinimide in DMF/H2O and methanol/sulfuric acid: Syntheses of dihalo diketones, dihalo ketoesters, and dihalo acetals. Journal of Organic Chemistry, 63(13), 4433-4437. https://doi.org/10.1021/jo980260n

Heasley, Victor L., Dale F. Shellhamer, and Alfred E. Chappell. "Reactions of Carbonyl-conjugated Alkynes with N-bromosuccinimide and N-iodosuccinimide in DMF/H2O and Methanol/sulfuric Acid: Syntheses of Dihalo Diketones, Dihalo Ketoesters, and Dihalo Acetals." Journal of Organic Chemistry 63, no. 13 (1998): 4433-4437. https://doi.org/10.1021/jo980260n.

Heasley, Victor L., et al. "Reactions of Carbonyl-conjugated Alkynes with N-bromosuccinimide and N-iodosuccinimide in DMF/H2O and Methanol/sulfuric Acid: Syntheses of Dihalo Diketones, Dihalo Ketoesters, and Dihalo Acetals." Journal of Organic Chemistry, vol. 63, no. 13, 1998, pp. 4433-4437, https://doi.org/10.1021/jo980260n.