The selective ring-opening reaction of fluoroalkylidene-oxetanes was directed by the presence of the fluorine atom, enabling a two-step access to tetrasubstituted fluoroalkenes with excellent geometry control. Despite its small van der Waals radii electronic, rather than steric influences of the fluorine atom governed the ring-opening reaction with bromide ions, even in the presence of bulky substituents
氟代亚烷基-氧杂
环丁烷的选择性开环反应是通过
氟原子的存在来进行的,从而使两步接触四取代的
氟代烯烃具有极好的几何形状控制。尽管其范德华半径电子较小,即使存在大的取代基,
氟原子的空间影响也并非由空间影响,而是由
溴离子控制。