Abstract The presentpaper is concerning the tw o step process forsynthesis of N, N�� bis(2,2,6,6 tetram ethylpiperidinyl) 1,6 hexandiam ine,being a lightstabilizer 944 in term ediary obtained from triacetonam ine and hexanam ine. The key step form m ing Schiffbase interm ediary w as investigated. Under optim un conditions including tem perature,catalyst and feed ratio,the yield oflight stabilizer 944 interm ediary is upto 76% .
Chen Ligong Luo Huibing Li Yuan Li Yang Jiang Xiaosheng.The Synthesis of N, N�䩴 Bis(2,2,6,6�� Tetram ethylpiperidinyl)��1,6�� Hexandiam ine[J] Chemcial Industry and Engineering, 1999,V16(5): 297-299
1999, Vol. 16 
