1: lithium ethanolate; 2-Carboxybenzaldehyde in tetrahydrofuran 2: [(1-phenyl-1-ethenyl)oxy]trimethylsilane in N,N-dimethyl-formamide T=20°C; 2 h; 3: With hydrogenchloride in tetrahydrofuran T=20°C;
Johnson, Robert E.; Hane, Jeffrey T.; Schlegel, Donald C.; Perni, Robert B.; Herrmann, John L.; et al.
Journal of Organic Chemistry, 1991 , vol. 56, # 17 p. 5218 - 5221
