abstract |
3,4-alkylenedioxy-2,5-dialkoxy-tetrahydrofuransnor 3,4-arylenedioxy-2,5-dialkoxy-tetrahydrofurans and a two-stagenProcess for their preparation, starting from 2,5-dialkoxydihydrofurans.nUse of such compounds for the production of S, Se andnN-containing heterocycles, in particular of 3,4-alkylenedioxythiophenes. |