New hetero-annelation reactions using N-[bis-(methylthio)-methylene]-amino and related reagents |
| |
| Authors: | F. Sauter J. Fröhlich E. K. Ahmed |
| |
| Affiliation: | (1) Institute of Organic Chemistry, Technical University Vienna, A-1060 Vienna, Austria |
| |
| Abstract: | Summary Reaction of acyclic (B1–3) and cyclic (R4–5)BMMA (=N-[bis-(methylthio)-methylene]-amino) reagents withGewald-type thiophene derivatives (2,3) led to annelation of pyrimidine moieties. Thus, linear thiazolo- or thiazino- and pyrrolo-, pyrido- or azepino-fused thiopyrano[4 ,3:4,5]thieno-[2,3-d]pyrimidines (5 and6) as well as the angular imidazo-fused thiopyrano[4,3:4,5]thieno-[2,3-d]pyrimidine8 were easily obtained from one-pot reactions in good yields.on leave from Chemistry Department, Minia University, El-Minia, Egypt |
| |
| Keywords: | Fused S,N-heterocycles BMMA reagents Pyrimidine annelations |
| 本文献已被 SpringerLink 等数据库收录！ |
|
