| 摘要 |
<p>The invention provides new methods for synthesis of B9H9-, B10H102-, B11H14-, and B12H122- salts, particularly alkylammonium salts of B9H9-, B10H102-, B11H14-, and B12H122-. More particularly, the invention provides methods of preparing tetraalkylamronium salts of B9H9-, B10H102-, B11H14-, and B12H122- by pyrolysis of tetraalkylammonium borohydrides under controlled conditions. The invention additionally provides methods of preparing, in an atom efficient process, octadecaborane from the tetraalkylammonium salts of the invention. Preferred methods of the invention are suitable for preparation of isotopically enriched boranes, particularly isotopically enriched 10B18H22 and 11B18H22.</p> |
