Pulse radiolysis studies of the interaction of hydroxy-cinnamic acid derivatives with oxidizing OH adducts of pyrimidine

✍ Scribed by Wang Wenfeng; Luo Jian; Yao Side; Lian Zhirui; Zuo Zhihua; Zhang Jiashan; Lin Nianyun

• Book ID: 103990405
• Publisher: Elsevier Science
• Year: 1995
• Tongue: English
• Weight: 345 KB
• Volume: 46
• Category: Article
• ISSN: 0969-806X
• DOI: 10.1016/0969-806x(94)00108-v

✦ Synopsis

The electron transfer reactions between oxidizing OH adducts of pyrimidine with hydroxycmnamic acid derivatives have been investigated by pulse radiolysis. The hydroxy-cinnamlc acid derivatives identified as good antioxidant for reduction of oxidizing OH adducts of pyrimidine via electron transfer reactions. From buildup kinetic analysis of radical product, the rate constants for reactions of N~ radical with hydroxy-cinnamic acid derivatives have been determined to be (8711) x 109 dm 3 mol-t s-1. while the rate constant of electron transfer from hydroxy-cinnamic acid derivatives to oxidizing OH adducts of cytosine or thymine were obtained to be 109dm3mo1-1 s -~.