in acetone -70°C, several hours, warming to room temp.; redn. of vol. (distn., vac., room temp.), pptn. on addn. of water, crystn. (overnight), dissolving (acetone), pptn. on pentane addn., crystn. (several days);
参考文献
Gun'kin, I. F.; Idelevich, A. I.; Rakhlevskaya, M. N.; Butin, K. P.
Journal of General Chemistry USSR (English Translation), 1989 , vol. 59, p. 971 - 974
Zhurnal Obshchei Khimii, 1989 , vol. 59, p. 1099 - 1103