aprotic solvents. The cations (15) undergo Hofmann elimination to the naphthalenic amines (12) or (13) and (14). The methiodide of amine (13g) shows a novel consequence, of restricted rotation. The n.m.r. spectrum of the methiodide shows that the two protons of the methylene group are diastereotopic.
水溶液中阳离子的碱催化重排(1d–j)产生异构阳离子(15)或醛(10)和(11)或(15),(10)和(11)的混合物。这与在质子惰性溶剂中观察到的阳离子(1)的转化形成鲜明对比。阳离子(15)进行霍夫曼消除成
萘胺(12)或(13)和(14)。胺的甲
硫脲(13克)显示出旋转受限的新结果。甲
硫酮的nmr光谱表明,亚
甲基的两个质子是非对映体。