P-Chlorophenoxyacetic acid

Naundorf and Gardner (30), claim that Cherelle wilt may be reduced by spraying young fruits with p-chlorophenoxyacetic acid and naphthaleneacetic acid at concentrations of 25 to 50 p.p.m. 

Alvim (1) in Costa Rica confirmed in part the studies of Pound (Al), Voelcker (50), and Humphries (22) and found that higher incidence of Cherelle wilt usually occurred after periods of intense growth of the leaf flushes and/or when the rate of growth in trunk diameter decreased or was checked. Spraying the fruits with p-chlorophenoxyacetic acid did not reduce the condition, as reported by Naundorf and Gardner (30). Alvim concluded that Cherelle wilt in Costa Rica is apparently caused by food strain (carbohydrates) or by depression in the mechanism of food translocation, and not by hormonal or mineral deficiencies. 

Preparation of the p-chlorophenoxyacetate of l-aminoadamantine-2-ethanol, starting from a p-chlorophenoxyacetic acid halide ... 

In a 1 liter flask, provided with a Dean-Stark separator tube and reflux refrigerant, a mixture of 20.5 g (0.011 m) of p-chlorophenoxyacetic acid, 22 g (0.11 m) of l-aminoadamantine-2-ethanol, 98 g of cone, sulfuric acid and 700 ml of toluene is heated to boiling point over a period of 24 hours. At the end... 

Cetyltrimethylammonium bromide Chloride of p-chlorophenoxyacetic acid Hydrochloric acid... 

Braun AM (2001) Lanthanide Oxide-Doped Titanium Dioxide Photocatalysts Novel Photocatalysts for the Enhanced Degradation of p-Chlorophenoxyacetic Acid, Environ. Sci. Technol. 35 1544-1549. 

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