| http://www.w3.org/ns/prov#value | - pe mentioned under process stage 1).For the rearrangement in the presence of an acid catalyst, polar solvents are advantageously used, especially lower alcohols, such as methanol, ethanol and butanols, N,N-dialkylamides of aliphatic monocarboxylic acids having 1-3 C atoms in theacid moiety, especially N,N-dimethylformamide, or dialkylsulphoxides, such as dimethylsulphoxide.In aprotic, strongly pol
|
