CH vs. CBr in Heck: The direct dehydrogenative coupling of furans and thiophenes with styrenes occurs under mild conditions (see scheme). This method allows the coupling of brominated substrates through CH bond activation. In addition, DMSO and benzoquinone had a positive effect on the reaction rate.
Ç ħ对丙
溴在Heck:
呋喃和
噻吩与
苯乙烯的直接脱氢偶联在温和的条件(参见方案)下发生。该方法允许通过CH键活化来偶联
溴化底物。此外,
DMSO和苯醌对反应速率有积极影响。