formaldehyd in methanol addn. of metal acetylacetonate into soln. of H2CO in MeOH, heating to 60°C for 20 h under N2; product is trimethylsilylated and analyzed by GC;

formaldehyd in methanol addn. of metal acetylacetonate into soln. of H2CO in MeOH, heating to 60°C for 20 h under N2; product is trimethylsilylated and analyzed by GC;

formaldehyd in methanol addn. of metal acetylacetonate into soln. of H2CO in MeOH, heating to 60°C for 20 h under N2; product is trimethylsilylated and analyzed by GC;

formaldehyd in methanol addn. of metal acetylacetonate into soln. of H2CO in MeOH, heating to 60°C for 20 h under N2; mixt. is treated with ion cation exchange resin, column chromy. (silica gel), product is trimethylsilylated and analyzed by GC;

in water T=60°C; 20 h;

in methanol T=60°C; 20 h;