(3) N. Boon-Long, J . Pharm. Assoc. Siam, 1, 5 (1948); C. A., 48, (4) R. Willstatter and L. Kalb, Bcr., 88, 1232 (1905). (5) N. A. Valyashko and MM Shcherbak, J. Gcn. Chcm. (L'.S.- (6) L. F. Fieser, THIS JOURNAL, 62, 4915 (1930). (7) After developing the successful procedure described below, we noted that I,. F. Fieser, “Experiments in Organic Chemistry,” D. C. Heath and Co., New York, N. Y., 2nd Ed., 1941, p. 439, mentions the use of lead tetraacetate to ...
