壳聚糖硫酸盐催化合成4,4′-四甲二氨基二苯甲烷

SYSTHESIS OF 4,4'-TETRAMETHYLDIAMINODIPHENYL- METHANE USING CHITOSAN SULFATE AS CATALYST

以壳聚糖硫酸盐为催化剂， 以Ｎ， Ｎ－ 二甲苯胺和甲醛为原料在相转移催化剂（ＴＢＡＣ） 存在下缩合成４ ， ４′－ 四甲二氨基二苯甲烷。实验表明， 在反应时间为３５ ｈ， 催化剂用量０５ ｇ， ＴＢＡＣ用量１５ ｇ 的条件下， 产品收率达９８ ％ ，

tetramethyldiaminodiphenylmethane was synthesized by N, N-dimethlamiline with formaldehyde using chitosan sulfate as catalyst in the present of phase-tranfer catalyst(TBAC). According to the experiment results, when the reaction time was 3 5 hours, the amount of catalyst was 0 5 gram and TBAC was 1 5 gram, the yield rate of the product was 98% and the catalyst could be used many times.