✦ LIBER ✦

Synthesis and insecticidal activity of O-aryl O-(1,2,2,2-tetrachloroethyl)phosphoramidothioates and their thiophosphoric hydrazides [1]

✍ Scribed by Liang-Nian He; Ming-Wu Ding; Sheng-Biao Li; Qing-Chun Zhou; Yan-Ping Luo; Tian-Jie Wu; Xiao-Peng Liu; Fei Cai

Publisher: John Wiley and Sons
Year: 1999
Tongue: English
Weight: 136 KB
Volume: 10
Category: Article
ISSN: 1042-7163
DOI: 10.1002/(sici)1098-1071(1999)10:6<441::aid-hc1>3.0.co;2-m

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✦ Synopsis

phosphoramidothioates 3a-h and their thiophosphoric hydrazides 4a-e were synthesized by reactions of O-aryl O-(1,2,2,2-tetrachoroethyl)thiophosphorochloridates 2 with amines and hydrazines, respectively. Their structures were characterized by elemental analysis IR 1 H NMR, 31 P NMR, and MS. The O-aryl O-(1,2,2,2tetrachloroethyl)thiophosphoric hydrazides 4a-d (R 2 ‫ס‬H) can be transformed into 1,3,4,2-oxadiazaphospholanes 5a-d by the reaction of triethylamine. The results of preliminary bioassays indicated that some of the title compounds have good insecticidal activities against nematodes (Meloidogyne spp.) and pea aphids.

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