| 摘要 |
1398593 Unsaturated esters IMPERIAL CHEMICAL INDUSTRIES Ltd 23 Feb 1973 [13 March 1972] 11591/72 Heading C2C Unsaturated esters containing one or more of the groups are prepared by reacting an acyclic conjugated diolefin of basic structure with a carboxylic acid in the presence of ethylene and a platinum or iridium compound; n being a whole number and the residual valencies in the formulµ being satisfied by hydrogen or organic or inorganic substituents. The platinum or iridium compound is preferably a halide, an alkanoate or an organo complex. The reaction may be carried out in an inert solvent and in the presence of a copper salt. The examples relate to the preparation of mono- and diocta - 2,7 - dienyl - ortho - phthalate and octa- 2,7-dienyl acetate. |
