1: 2,2,6-trimethyl-4H-1,3-dioxin-4-one With dihydroxy-poly(ethylene glycol) of MW = 4000 in toluene 5 h; Heating; 2: 1,3,5-trishydroxybenzene With titanium tetrachloride in tetrahydrofuran T=20°C; von Pechmann reaction; 0.666667 h;
Wyatt, Emma E.; Fergus, Suzanne; Galloway, Warren R. J. D.; Bender, Andreas; Fox, David J.; Plowright, Alleyn T.; Jessiman, Alan S.; Welch, Martin; Spring, David R.
Chemical Communications, 2006 , # 31 p. 3296 - 3298