Trialkyl oxonium salts of the hpf6,hasf6 and hsbf6 acids
Abstract
Abstract THERE IS DISCLOSED A METHOD OF OBTAINING THE TRIALKYL OXONIUM SALTS OF THE HPF6, HASF6 AND HSBF6 ACIDS WHEREIN A SOLUTION OF THE ACID WHICH MAY CONTAIN WATER IS MIXED WITH AN ALKYLENE OXIDE AND A DIALKYL ETHER AT LOW TEMPERATURES. SUCH METHOD RESULTS IN A PRECIPITATE OF THE DESIRED TRIALKYL OXONIUM SALT WHICH, SURPRISINGLY, IS STABLE IN THE RESULTING WATER-CONTAINING MEDIUM. TRIALKYL OXONIUM HEXAFLUOROPHOSPHATES ARE OBTAINED WITH HPF6 SOLUTIONS CONTAINING UP TO 40%/WT. OF WATER. THE PRODUCT MAY BE PURIFIED BY MULTIPLE RECRYSTALLIZATION FROM SOLVENT SOLUTION. THE RESULTING SALTS ARE USEFUL AS INGREDIENTS IN HIGHLY ACTIVE CATALYSTS FOR THE POLYMERIZATION OF CYCLIC ETHERS SUCH AS TETRAHYDROFURAN AND ALSO AS STRONG ALKYLATING AGENTS IN MANY CHEMICAL SYNTHESES.
Inventors
- 👤 Max Peter Dreyfuss
Bibliographic Details
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