Pinner Method for Ortho Esters.

A. Pinner, Ber. 16, 352, 1643 (1883)
A. Pinner, Die Imidoather and ihre Derioate, p 23 (Berlin, 1892;
reprinted Ann Arbor, Mich.,1961)
H. Reitter and E. Hess, Ber. 40, 3020 (1907)
H. W. Post, The Chemistry of Aliphatic Ortho Esters, p 21 (New
York, 1943)
S. M. McElvain et al. J. Am. Chem. Soc. 68, 1917 (1946); 71, 40
(1949); 75, 3987 (1953)
R. M. Roberts, T. D. Higgins and P. R. Noyes, J. Am.Chem. Soc.
77, 3801 (1955)
Rodd's Chemistry of Carbon Compounds IC, pp 112, 185, 215 (New
York, 1965)
Also see Pinner Amidine Synthesis