Schoenberg; Mustafa Journal of the Chemical Society, 1946 , p. 746 Full Text Show Details Weygand; Grisebach Angewandte Chemie, 1952 , vol. 64, p. 643 Full Text Show Details Gerber; Curtin Journal of the American Chemical Society, 1949 , vol. 71, p. 1499 Full Text View citing articles Show Details Mustafa Journal of the Chemical Society, 1951 , p. 1370