Hell-Volhard-Zelinsky Halogenation.

C. Hell, Ber. 14, 891 (1881); J. Volhard, Ann. 242, 141 (1887)
N. Zelinsky, Ber. 20, 2026 (1887)
H. B. Watson, Chem. Revs. 7, 180 (1930)
C. S. Marvel, Org. Syntheses 21, 74 (1941);
E. Schwenk and D. Papa, J. An and E. V. Scalzi,J. Am. Chem. Soc. 70, 3626 (1948)
H. Kwart and E. V. Scalzi, J. Am. Chem. Soc. 86, 5496 (1964)