Obata Yakugaku Zasshi, 1953 , vol. 73, p. 1298 Chem.Abstr., 1955 , p. 175 Full Text Show Details Rai; Dev Journal of the Indian Chemical Society, 1957 , vol. 34, p. 178,181 Full Text Show Details LaForge; Barthel Journal of Organic Chemistry, 1945 , vol. 10, p. 222,224 Full Text Show Details Wiggins; Overend Manuf. Chemist, 1948 , vol. 19, p. 369