Online citations, reference lists, and bibliographies.
← Back to Search

The Synthesis And Photolarvicidal Activity Of 2,5-diarylethynylthiophenes.

Ren-Hai Wu, S. Hu, H. Xu, X. Wei, L. Hu
Published 2007 · Chemistry, Medicine

Cite This
Download PDF
Analyze on Scholarcy
Share
The photoactivatable insecticides have photoactive features and broad applications. The derivatives of the alpha-terthienyl analogues were synthesized for evaluating their photolarvicidal activities and 13 2,5-diarylethynylthiophenes were investigated to determine their effect on the second-instar larvae of Plutella xylostella L. Based on their photolarvicidal activities, the 2,5-Dithienylethynylthiophene, 2,5-Diphenylethynylthiophene, 2,5-Di-4-Methoxylphenylethynylthiophene and 2,5-Di-3,4-Methylenedioxyphenylethynylthiophene were found to be the most potent compounds, and their LC(50) values were 34.1 mg l(-1), 48.4 mg l(-1), 60.8 mg l(-1) and 42.7 mg l(-1), respectively. The relationship analysis between structure and activity showed that the middle thiophene ring played an important role on the activities. The electron donor substituents increased the photolarvicidal activities and the length of the alkyl chain had negative influence on the activities.
This paper references
10.1055/S-1996-4265
AN IMPROVED PROCEDURE FOR THE PREPARATION OF ARYL- AND HETARYLACETYLENES
A. G. Mal'kina (1996)
10.1021/bk-1987-0339.ch012
α-Terthienyl as a photoactive insecticide: toxic effects on nontarget organisms
J. Kagan (1987)
10.1007/s003740050413
Effects of marigold (Tagetes sp.) roots on soil microorganisms
E. Topp (1998)
IDENTIFICATION OF ALPHA-TERTHIENYL RADICAL IN VITRO : A NEW ASPECT IN ALPHA-TERTHIENYL PHOTOTOXICITY
M. Nivsarkar (1999)
10.1016/S1671-2927(07)60070-4
Study on Active Oxygen Quantum Yield, Insecticidal Activities and Stability of Diphenylthiophene
X. Chen (2007)
10.1021/BK-1987-0339
Light-Activated Pesticides
J. R. Heitz (1987)
10.1016/0045-6535(89)90080-5
PHOTOACTIVE ANTIVIRAL AND CYTOTOXIC ACTIVITIES OF SYNTHETIC THIOPHENES AND THEIR ACETYLENIC DERIVATIVES
J. Hudson (1989)
Structure Speciality and Researching Development Survey of Pesticide Containing Fluorine
Zhang Yibin (2002)
10.1016/S1381-1169(99)00289-7
Improvements in the synthesis of terminal alkynes via coupling of arylbromides with 2-methylbut-3-yn-2-ol
G. Menchi (2000)
10.1111/j.1751-1097.1998.tb05188.x
Porphyrins and Related Compounds as Photoactivatable Insecticides I. Phototoxic Activity of Hematoporphyrin Toward Ceratitis capitata and Bactrocera oleae
T. Ben Amor (1998)
10.1016/1010-6030(95)04144-3
Singlet oxygen photosensitizing properties of bithiophene and terthiophene derivatives
R. Boch (1996)
Alpha-terthienyl: A plant-derived new generation insecticide
M. Nivsarkar (2001)
10.1007/BF01020259
Efficacy of the plant phototoxinα-terthienyl againstAedes intrudens and effects on nontarget organisms
B. J. Philogéne (2005)
10.1016/S0965-1748(00)00072-2
Sunlight-activated insecticides: historical background and mechanisms of phototoxic activity.
T. Ben Amor (2000)
10.1021/jo00210a042
Synthesis of arylacetylenes by the sodium hydride catalyzed cleavage of 4-aryl-2-methyl-3-butyn-2-ols
S. Havens (1985)
10.1021/BK-1995-0616.CH012
Fate of Phototoxic Terthiophene Insecticides in Organisms and the Environment
J. Arnason (1995)
10.1021/BK-1995-0616.CH010
Potential Markets for the Photoactivated Pesticides
G. D. Pimprikar (1995)



This paper is referenced by
Semantic Scholar Logo Some data provided by SemanticScholar