1: With potassium hydroxide in toluene
T=120°C; Heating / reflux;
2: With hydrogenchloride in water; toluene
3: With sodium hydroxide; water in methanol
Nicolaou, K. C.; McGarry, D. G.; Somers, P. K.; Veale, C. A.; Furst, G. T.
Journal of the American Chemical Society, 1987 , vol. 109, # 8 p. 2504 - 2506
Stals, Patrick J. M.; Phan, Trang N. T.; Gigmes, Didier; Paffen, Tim F. E.; Meijer; Palmans, Anja R. A.
Journal of Polymer Science, Part A: Polymer Chemistry, 2012 , vol. 50, # 4 p. 780 - 791