Semiempirical calculations support a spin-paired chair-like TS for the 3-aza-Claisen rearrangement, and yield the prediction that an anionic substituent on the nitrogen atom reduces the activation energies for the rearrangement. Attempts to demonstrate this experimentally have been unsuccessful.
半经验计算支持3-氮杂-克莱森重排的自旋成对的椅子状
TS,并预测氮原子上的阴离子取代基会降低重排的活化能。尝试通过实验证明这一点一直没有成功。