Synthesis of disperse dyes from pyrimidine derivatives

• Main Authors: Wang Ming Zhan, 王明仁
• Other Authors: Wang Ying Jing
• Format: Others
• Language: zh-TW
• Published: 1998
• Online Access: http://ndltd.ncl.edu.tw/handle/80617404323144404283

碩士 === 國立臺灣科技大學 === 纖維及高分子研究所 === 86 === The pyrimidine derivatives were prepared by the reaction of malonic acid with urea or Thiocarbamine derivative. The condensation reaction of pyrimidine intermediates with aromatic aldehyde 、p-methoxycinnamaldehyde and 1,3,3-trimethyl-2-methylene indoline led to obtain three series of mono、di- and poly-methine pyrimidine disperse dyes, respectively. The structure of the dyes was confirmed by E.A,IR,MS and 1H- NMR spectral analysis. The pyrimidine dyes were applied to dyeing on polyester fabrics and shown yellow to red hues. The sublimation fastness and lightfastness of dyes on polyester fabrics were shown in the range among 2~5grade and 3~8 grade, respectively. The photofading rate of dyes on polyester fabrics shown I、II and III order ,respectively.