PYROLYSIS OF THE CYCLOOCTATETRAENE DIANION

摘要

The solid potassium cyclooctatetraene dianion was heated from 300 to 1000 degrees C. Below 400 degrees C it did not produce any new products. However, at temperatures above 650 degrees C both hydrogen and methane gases are liberated and account for all of the volatile products. The nonvolatile products are polymeric in nature, and laser desorption mass spectroscopy reveals that they are held together by single bond linkages and linkages that result from [2 + 2] additions. The methane is proposed to result from the reaction between molecular hydrogen and carbenes. [References: 20]