381. | StolléSynthesis R. Stollé, Ber. 46, 3915 (1913); 47, 2120 (1914); J. Prakt. Chem. 105, 137 (1923); 128, 1 (1930). Formation of indole derivatives by the reaction of arylamines with α-haloacid chlorides or oxalyl chloride, followed by cyclization of the resulting amides with aluminum chloride: W. C. Sumpter, Chem. Rev. 34, 396 (1944); 37, 446 (1945); P. L. Julian et al., Heterocyclic Compounds 3, 142, 209 (1952); A. H. Beckett et al., Tetrahedron 24, 6093 (1968). Cf. Hinsberg Oxindole Synthesis. |