Methylenebis 3,4,6-trichlorophenol

It would be diflBcult to estimate the quantity of TGDD which enters the environment each year. In addition to the common pesticides listed in Table I, other chlorophenols nd their derivatives are used widely. For example, large amounts of the disinfectant, hexachlorophene (2,2 -methylenebis(3,4,6-trichlorophenol)), are used in homes, hospitals, and industry, and the Dowcides 2 and B (2,4,5-trichlorophenol and its sodium salt) are industrial microbiocides. More than 50,000,000 lbs of trichloro-phenol are made in the United States each year (24), and much of it eventually must be dispersed in the environment. The dioxin content seems to be variable but is generally below 0.5 ppm (25). 

Chemical Name 2,2 -Methylenebis(3,4,6-trichlorophenol) Common Name -Structural Formula ... 

Likewise, Pd-[Rh(cod)Cl]2 (as well as some analogous catalysts combined with other metal particles and complexes suchas Rh-Pd(NOs)2, Ni-[Rh(cod)Cl]2 and Pt- [Rh(cod)-(PPh3)2][Pp6] ) were shown to promote hydrodechlorination of a variety of mono- and polychloroarenes. Of particular importance is the conversion of major polychlorinated environmental pollutants and toxins into non-aromatic halogen-free hydrocarbons. The hy-drodehalogenation of l,l -(2,2,2-trichloroethylidene)bis(4-chlorobenzene) (DDT), 2,2 -methylenebis( 3,4,6-trichlorophenol) (Hexachlorophene), 2,4,5-trichlorophenoxyacetic acid (2,4,5-T), polychlorinated biphenyl (PCB), polychlorinated dibenzo[, r]dioxinc... 

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