1. N. Menschutkin undM. Wasilijew, J. russ. Phys. chem. Ges.21, 192 (1889);O.Spencer, J. Assoc. Off. Agric. Chemists7, 493 (1923);W. S. Calcott, F. L. English undO. C. Wilbur, Ind. Eng. Chem., Analyt. Ed.17, 942 (1945);K. J. P. Orton undA. E. Bradfield, J. Chem. Soc. London1927, 983;E. Terlinck, Chem.-Ztg.53, 850 (1929).
2. D. M. Smith, W. M. D. Bryant undJ. Mitchell, J. Amer. Chem. Soc.63, 1700 (1941).
3. K. Fischer, Angew. Chem.48, 394 (1935).
4. Th. Zerewitinoff, Ber. dtsch. chem. Ges.40, 2023 (1907);41, 2233 (1908);42, 4802 (1909);43, 3590 (1910);47, 1659, 2417 (1914).
5. A. Kekulé undA. Linnemann, Ann. Chem.123, 273 (1862).