... Acta, 128, 327 (36) J. S. Taylor, J. S. Leigh, Jr., and M. Cohn, Proc. Nat. Acad. Sci. (1966). US, 64,219 (1969). Journal of the American Chemical Society / 93:21 / October 20, 1971 Page 4. 5545 Chart I Method A (cyanamide method) - O & g - H + NH,C=N NHJ * ...