Fungicidal Activity and Structure, Fungicidal Activity of Trichloromethyl Thiosulfonates

Abstract

Continued elution, however, will eventually wash the synergist from the column. The careful following of directions will result in sharp separation and quantitative recovery of cyclethrin from the synergist. Recoveries of cyclethrin obtained, using various combinations of the insecticide with piperonyl butoxide and sulfoxide, are given in Table II.

Fungitoxicity of Compounds Containing a Trichloromethylthio-Group

“…Some compounds of the type R-SCCI3 have been reported nontoxic simply because testing procedures did not allow for volatility or instability. According to Block (7), fungitoxicity of trichloromethylthiomethane sulfonate (Figure 1, -4-4) was missed by Johnston et al (8) because the compound vaporized from their testing system. Uhlenbroek and Koopmans (79) may have reported trichloromethyl-methyl disulfide (Figure 1, -4-1) as nontoxic for the same reason.…”

“…(78), 1,3-di(trichloromethylthio)benzene (Figure 1, £-1), and 3,3'di(trichloromethylthio) diphenyl (Figure 1, £-2) (8) are non toxic.…”

“…Structures of miscellaneous compounds of the type R-SCCla methy1thio)piperazine (Figure 1, C-1) (78), 1,3-di(trichloromethylthio) benzene (Figure 1, B -l ) , and 3,3'di(trichloromethylthio) diphenyl (Figure 1, B-2)(8) are nontoxic.However, Block (7) found activity in bis(trichloromethy1)disulfide (Figure 1, A -2 ).Sosnovsky 178) found a series of diathiadiazines nontoxic. Diathiadiazines (Figure 1, C-2) may be considered derivatives of trichloromethylmercaptan in which two primary amine-SCCl3 molecules are fused to form a six-membered heterocyclic ring.…”

N-, O-, and S-Trihalomethyl Compounds

“…Many new examples for the preparation of S-trichloromethyl thiosulfonates, RSO2SCCI3, from metal sulfinates and trichloromethanesulfenyl chloride have become known (2,47,160,161,211,282,366,368).…”

“…A number of S-triehloromethyl thiophosphoric diamide esters were found to be active against two-spotted mites (253). An extensive study of the fungicidal activity of S-trichloromethyl thiolsulfonates is available (211).…”