Effects of sensitizers on the photodegradation of the systemic fungicide triadimenol

被引:12
作者
Iesce, MR [1 ]
Graziano, ML [1 ]
Cermola, F [1 ]
Montella, S [1 ]
di Gioia, L [1 ]
Stasio, C [1 ]
机构
[1] Univ Naples Federico II, Dipartimento Chim Organ & Biochim, I-80126 Naples, Italy
关键词
photochemistry; pesticide photodegradation; triadimenol; triadimefon; 9,10-dicyanoanthracene; 2,4,6-triphenylpyrylium tetrafluoroborate;
D O I
10.1016/S0045-6535(02)00823-8
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
The photochemical behaviour of triadimenol (1) under various conditions has been examined. Significant degradation is obtained only in the presence of electron-acceptor sensitizers as 9,10-dicyanoanthracene or 2,4,6-triphenylpyrylium tetrafluoroborate, and long irradiation times are required. 1H-1,2,4-Triazole (2), 4-chlorophenyl formate (3), 4-chlorophenol (4), 1-(4-chlorophenoxy)-3,3-dimethyl-1-(1H-1,2,4-triazol-1-yl)butan-2-one (5), 4-chlorophenyl 2,2-dimethylpropanoate (6) and 4-chlorobenzoic acid (7) were identified as photoproducts by NMR and GC-MS. (C) 2003 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码:163 / 166
页数:4
相关论文
共 13 条
[1]  
ANDERSON E, 1984, RAND J ECON, V15, P3
[2]  
[Anonymous], 1994, Photochemical Key Steps in Organic Synthesis: An Experimental Course Book
[3]  
Bloodworth A.J., 1985, SINGLET OXYGEN REA 1, P93
[4]   Reaction pathways and mechanisms of photodegradation of pesticides [J].
Burrows, HD ;
Canle, M ;
Santaballa, JA ;
Steenken, S .
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY, 2002, 67 (02) :71-108
[5]   PHOTOLYSIS OF TRIADIMENOL [J].
CLARK, T ;
WATKINS, DAM .
CHEMOSPHERE, 1986, 15 (06) :765-770
[6]   Photophysics and photochemistry of azole fungicides: triadimefon and triadimenol [J].
Da Silva, JP ;
Da Silva, AM ;
Khmelinskii, IV ;
Martinho, JMG ;
Ferreira, LFV .
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY, 2001, 142 (01) :31-37
[7]   (4+2)-CYCLOADDITION OF SINGLET OXYGEN TO OXAZOLES FORMATION OF OXAZOLE ENDOPEROXIDES [J].
GOLLNICK, K ;
KOEGLER, S .
TETRAHEDRON LETTERS, 1988, 29 (09) :1003-1006
[8]  
Gupta S. K., 2000, Journal of Mycology and Plant Pathology, V30, P414
[9]  
JACKMAN LM, 1969, APPLICATIONS NUCLEAR, P291
[10]   PHOTOSENSITIZATION BY REVERSIBLE ELECTRON-TRANSFER - THEORIES, EXPERIMENTAL-EVIDENCE, AND EXAMPLES [J].
KAVARNOS, GJ ;
TURRO, NJ .
CHEMICAL REVIEWS, 1986, 86 (02) :401-449