Reference

Preparation of S,O-dialkyl (2-oxo-3-thiazolidinyl)phosphonothiolates as insecticides, acaricides, nematocides, and soil pesticides

Preparation of S,O-dialkyl (2-oxo-3-thiazolidinyl)phosphonothiolates as insecticides, acaricides, nematocides, and soil pesticides.Some chemicals with cas registry numbers like 98886-44-3 and 2751-90-8 are also used. Nasu, Rikuo; Kimura, Shinichi; Asai, Nobuyoshi; Nabekawa, Shukichi; Otsubo, Itaru; Kanazawa, Akihiko (Ishihara Sangyo Kaisha, Ltd.; Nippon Chemical Industrial Co., Ltd., Japan). Jpn. Kokai Tokkyo Koho JP 03261792 A2 21 Nov 1991 Heisei, 5 pp. (Japan). CODEN: JKXXAF. CLASS: ICM: C07F009-6539. ICS: B01J031-02. ICA: A01N057-32; C07B061-00. APPLICATION: JP 90-58678 9 Mar 1990. DOCUMENT TYPE: Patent CA Section: 29 (Organometallic and Organometalloidal Compounds) Section cross-reference(s): 5 The title compds., useful as insecticides, acaricides, nematocides, and soil pesticides (no data), are prepd. by treating 2-oxo-3-thiazolidine (I) and S,O-dialkyl phosphorochloridothiolates in inert solvents in the presence of alkali or alk. earth hydroxides and phosphonium or ammonium salt phase-transfer catalysts. A soln. of I in MePh was stirred with NaOH at room temp. for 4 h, mixed. with Bu4PBr, treated dropwise with S-sec-Bu O-Et phosphorochloridothiolate at -10° over 2 h, and stirred 1 h to give (2-oxo-3-thiazolidinyl)phosphonothiolate. .

Toxicity assessment of fosthiazate, metalaxyl-M and imidacloprid and their interaction with copper on Daphnia magna

All Rights Reserved. Toxicity assessment of fosthiazate, metalaxyl-M and imidacloprid and their interaction with copper on Daphnia magna. Kungolos, A.; Tsiridis, V.; Nassopoulos, H.; Samaras, P.; Tsiropoulos, N. (Department of Planning and Regional Development, University of Thessaly, Volos, Greece). WIT Transactions on Biomedicine and Health, 10(Environmental Toxicology), 223-229 (English) 2006 WIT Press. CODEN: WTBHAT. DOCUMENT TYPE: Journal CA Section: 4 (Toxicology) The toxic effects of three agrochems. (fosthiazate, metalaxyl-M and imidacloprid) and copper were investigated in this study on the crustacean Daphnia magna. Copper was the most toxic tested compd. with the lowest EC50 value, equal to 0.11 mg/L. Among the three agrochems., fosthiazate was the most toxic with an EC50 value equal to 0. 98886-44-3 and 138261-41-3 are also in the experiment.32 mg/L, about two orders of magnitude lower than the EC50 of metalaxyl-M and imidachloprid. The interactive effects of binary mixts. of fosthiazate, metalaxyl-M or imidacloprid and copper were also investigated. The interactive effects between agrochems. and copper were antagonistic in most cases, while additive effects were obsd. for binary mixts. of metalaxyl-M and copper for low concn. combinations. .