Diisocyanates corresponding to a specified formula are produced by reacting an alcohol corresponding to a specified formula with a nitrochlorobenzene in the presence of NaOH and/or KOH in powder form and a strongly polar, aprotic solvent to produce a dinitro compound corresponding to a specified formula. This dinitro compound is hydrogenated to form the corresponding diamine, which is phosgenated to produce the corresponding diisocyanate. The resultant diisocyanates may then be used as starting materials in polyisocyanate addition processes.
根据指定的公式,通过在NaOH和/或KOH粉末和强极性无
水溶剂的存在下,将与指定公式相对应的醇与
硝基氯苯反应,产生与指定公式相对应的二
硝基化合物。将此二
硝基化合物加氢形成相应的二胺,再经过
光气化反应产生相应的二
异氰酸酯,从而生产与指定公式相对应的二
异氰酸酯。随后,所得到的二
异氰酸酯可以作为聚
异氰酸酯加成过程的起始原料。