CHEMISTRY OF HETEROARYLTRIPHENYLPHOSPHONIUM IODIDES: PREPARATION FROM IODOHETEROAROMATICS AND ELIMINATION OF THE PHOSPHONIUM IODIDE GROUP USING BASIC SOLVENTS

[摘要]：alpha- and gamma-lodoheteroaromatics were found to react with triphenylphosphine to give heteroaromatictriphenylphosphonium iodides in excellent yields. beta-lodoheteroaromatics, which are less reactive with triphenylphosphine compared to alpha- or gamma-compounds, were converted into the corresponding phosphonium iodides using palladium catalysts. Treatment of heteroaromatictriphenylphosphonium iodides resulted in the elimination of the phosphonium iodide group using basic solvents such as aqueous sodium hydroxide or ethanol - triethylamine.

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