A novel one-pot procedure for the synthesis of stable dioxadiazastannepines and dioxadiazasilepines
摘要:
A novel synthetic approach to seven-membered silicon- and tin-containing heterocycles has been developed. 5.6-Diaryl-1,3,4,7,2-dioxadiazastannepines 3a-I and 5,6-diaryl-1.3,4.7,2-dioxadiazasilepines 4a-I were prepared in one pot from vicinal dioximes 1a-d and diorganodichlorostannanes and diorganodichlorosilanes via dianion intermediate 2 in good yields. (C) 2004 Elsevier Ltd. All rights reserved.