Method for Synthesis of Diacetylenic Compounds.
Patent, filed 24 Dec 86, patented 19 Sep 89,
DEPARTMENT OF THE NAVY WASHINGTON DC
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A method for synthesizing a diynoic acid having the formula CH3CH2 n-Ctriple bondC-Ctriple bondC-CH2mCO2H comprising the steps of selecting a one-halo alkyne from the group consisting of CH3CH2nCtriple bondCX, where X is a selected halogen selecting an omega alkynoic acid having the formula, HCtriple bondCCH2mCO2H dissolving the alkynoic acid in an aqueous solution of base adding a catalytic amount of cuprous halide dissolved in an aqueous solution of alkylamine to the aqueous solution of base adding a catalytic amount of cuprous halide dissolved in an aqueous solution of alkylamine to the aqueous solution of alkynoic acid adding a reducing agent to the solution of alkynoic acid and cuprous halide adding the one halo alkyne to the solution adding as much more of the reducing agent to the solution as is necessary to maintain the cuprous ion in the cuprous state wherein m is selected from the group of 5, 6, 7, 8, 9, 10, and 11, and n is selected from the group of 7, 8, 9, 10, 11, 12, 13, 14, 15, and 16. Keyword Patents. js
- Organic Chemistry