Abstraction of hydrogen atoms from bicyclo[2.1.1]hexane by methyl radicals and chlorine atoms: photochlorination of 1-methylbicyclo[2.1.1]hexane
作者:R. Srinivasan、F. I. Sonntag
DOI:10.1139/v69-268
日期:1969.5.15
a source of methyl radicals to study the abstraction of hydrogen atoms from bicyclo[2.1.1]hexane by methyl radicals. The reaction was found to have an activation energy of 10.3 kcal/mole and a pre-exponential factor that is typical of other abstraction reactions. The absolute rate of abstraction of hydrogen atoms from bicyclo[2.1.1]hexane by chlorine atoms at room temperature was measured to be 8.1 × 1010 l
丙酮的光解已被用作甲基自由基的来源,以研究甲基自由基从双环 [2.1.1] 己烷中提取氢原子。发现该反应具有 10.3 kcal/mol 的活化能和其他提取反应典型的指前因子。室温下氯原子从双环[2.1.1]己烷中提取氢原子的绝对速率测量为8.1×1010 l mol-1 s-1。1-甲基双环-[2.1.1] 己烷在溶液中的光氯化得到 1-氯甲基和 2-或 3-氯-1-甲基双环己烷。甲基和 2 位或 3 位的相对攻击速率确定为 1:2.1。指出甲基自由基从双环[2.1.1]己烷中提取H原子的速率参数比环戊烷慢,