作者:Anirban Pradhan、Pierre Dechambenoit、Harald Bock、Fabien Durola
DOI:10.1002/anie.201105105
日期:2011.12.23
Let's twist! The Scholl reaction with quinquephenyl derivatives has been shown to have an unexpectedly strong preference for forming twisted, helicene aromatic polycycles, instead of their flat counterparts. This tendency is so strong that it will overcome even severe steric hindrance, and the procedure can be used in the efficient synthesis of hexa‐tert‐butylhexabenzotriphenylene from a simple biaryl
扭转吧!已显示,与五苯基苯基衍生物的Scholl反应具有出乎意料的强烈偏好,而不是形成平整的对映异构体,以形成扭曲的,螺旋烯的芳族多环。这种趋势是如此之强,以至于它甚至可以克服严重的空间位阻,该方法可用于由简单的联芳基原料有效合成六叔丁基六苯并三苯撑(参见方案)。