1. Doane, W. M., Shasha, B. S., Russell, C. R., and Rist, C. E., submitted to J. Org. Chem.
2. Pacsu, E., Advan. Carbohydrate Chem., 1, 77 (1945).
3. Malisoff, W. M., and Anding, jun., C. E., Indust. Eng. Chem., Anal. Ed., 7, 86 (1935).
4. Critchfield, F., Organic Functional Group Analysis, 167 (Pergamon Press,Oxford and New York).