Stereoelectronic suppression and a remarkably low effective concentration for a cyclization to a benzo-fused five-membered ring
作者:James F. King、Joe Y. L. Lam、Stanis?aw Skonieczny
DOI:10.1039/c39880000147
日期:——
The cyclization of o-chloromethylbenzylamine to dihydroisoindole has an effectiveconcentration of 8.3 M(in CD3OD at 21 °C); this very low value for a cyclization to a benzo-fusedfive-memberedring is ascribed to lessened conjugation in the transition state as compared to that of the model reaction, and is relevant to both the synthesis of rings and the application of effectiveconcentrations in obtaining