皮革与化工
皮革與化工
피혁여화공
Leather and Chemicals
2015年
5期
1-5
,共5页
缩合%苯并噻唑%偶合%水解%直接染料
縮閤%苯併噻唑%偶閤%水解%直接染料
축합%분병새서%우합%수해%직접염료
condensation%benzothiazole%coupling%hydrolysis%direct dyes
三聚氯氰与H酸单钠盐一次缩合反应得到一缩合物A,一缩合物A与脱氢硫代对甲苯胺单磺酸二次缩合反应得到二缩合物B,二缩合物B与邻氨基苯甲酸的重氮盐偶合后得到偶氮物C,偶氮物C再在碱性溶液中进行水解反应得到直接桃红B(C.I.Direct Red 9).本论文对于一次缩合、二次缩合、偶合、水解反应的反应条件进行探讨,找出了直接桃红B适宜的合成反应条件.
三聚氯氰與H痠單鈉鹽一次縮閤反應得到一縮閤物A,一縮閤物A與脫氫硫代對甲苯胺單磺痠二次縮閤反應得到二縮閤物B,二縮閤物B與鄰氨基苯甲痠的重氮鹽偶閤後得到偶氮物C,偶氮物C再在堿性溶液中進行水解反應得到直接桃紅B(C.I.Direct Red 9).本論文對于一次縮閤、二次縮閤、偶閤、水解反應的反應條件進行探討,找齣瞭直接桃紅B適宜的閤成反應條件.
삼취록청여H산단납염일차축합반응득도일축합물A,일축합물A여탈경류대대갑분알단광산이차축합반응득도이축합물B,이축합물B여린안기분갑산적중담염우합후득도우담물C,우담물C재재감성용액중진행수해반응득도직접도홍B(C.I.Direct Red 9).본논문대우일차축합、이차축합、우합、수해반응적반응조건진행탐토,조출료직접도홍B괄의적합성반응조건.
Cyanuric chloride reacts with H-acid monosodium salt to obtain condensate compound A by the first condensation. Then the compound A reacts with 2- (4-aminophenyl)-6-methylbenzothiazole-7-sulfonic acid to obtain the second condensate compound B by the second condensation. And next the compound B reacts with the diazonium salt of the anthranilic acid to obtain the coupled-compound C after the coupling. Finally the compound C is hydrolyzed in the alkaline aqua solution to obtain the direct dyes(C.I.Direct Red 9). In this paper,the reaction conditions of the first and second condensations,the coupling and the hydrolysis were discussed,as well as the better reaction conditions of the synthesis for C.I.Direct Red 9 were found out.
