References
- Quirke , J. M. E. 1984 . Comprehensive Heterocyclic Chemistry , Edited by: Boulton , A. J. and McKillop , A. Vol. 3 , 524 Oxford : Pergamon Press .
- Worley , S. D. and Williams , D. E. 1988 . CRC Crit. Rev. Environ. Control , 18 : 133
- Ostrogovich , A. 1909 . Gazz. Chim. Ital. , 39 : 540
- Schiff , H. 1896 . Liebigs Ann. Chem. , 291 : 361
- étienne , A. and Bonte , B. 1975 . Bull. Soc. Chim. Fr. , : 1419
- Lange , N. A. 1926 . J. Am. Chem. Soc. , 48 : 2440 (a), (b) H. Suschitzky, R. E. Walrond and R. Hull, J. Chem. Soc., Perkin Trans. 1, 1977, 47
- Ziegler , E. and Zwainz , J. G. 1976 . Z. Naturforsch. , 31B : 1142
- Kretov , A. , Malinovskii , M. S. and Bairak , V. I. 1968 . Zh. Obsch. Khim. , 38 : 47 Noncyclic products are obtained instead. See for example
- Fairfull , A. E.S. and Peak , D. A. 1955 . J. Chem. Soc. , : 803 (a), (b) O. Hritzova and E. Rybarova.Chem. Zvesti, 1976, 30 530 (Chem. Abstr., 1977, 87 152139m)
- Typically recrystallization raised the melting points of the crude products by two or three degrees, and reduced the yield by ca. 5%