‘Push–Pull’ and spirobicyclic structures by reacting N-methyl cyclic ketene-N,X (X=S, O)-acetals with isocyanates and isothiocyanates
作者:Aihua Zhou、Liwei Cao、Haiqing Li、Zhuqing Liu、Hosouk Cho、William P. Henry、Charles U. Pittman, Jr.
DOI:10.1016/j.tet.2006.02.011
日期:2006.4
Nucleophilic N-methyl cyclic ketene-N,X (X=S, O)-acetals can react with electrophilic aryl isocyanates and aryl isothiocyanates to form 'push-pull' mono-adducts, di-adducts and spirobicyclic 6/5 ring compounds. (c) 2006 Elsevier Ltd. All rights reserved.