... b) A. Belly, F. Petrus, J. Verducci; Bull. soc. chim. France (1973), p. 1395. 3; KN Zelenin, IA Motorina, LA Sviridova, GA Golubeva, IP Bezhan, A.Yu. Ershov, Yu.G. Bundel; Khim. Geterotskil. Soed. (1987), p. 1270 N9. 4; The reaction was carried out in methanol solution, 0–5°C, TEAE-cellulose catalysis, the reaction time being 5–20 h. ...