V. Mironov, N. Azancheev, R. Z. Musin
Apr 1, 2005
Citations
0
Influential Citations
2
Citations
Journal
Russian Journal of General Chemistry
Abstract
It was for the first time shown that 2,2,2-tribromo- and 2,2-dibromo-2-fluoro-5-halobenzo[d]-[1,3,2λ5]dioxaphospholes react with arylacetylenes with preferential formation of heterocycles monohalogenated in the benzo fragment, viz. 4-aryl-2-bromo(fluoro)-7-halobenzo[e][1,2]oxaphosphinines. Their structure was established by NMR spectroscopy. By varying in such a way the nature of the halogen at the phosphorus atom one can obtain 6- or 7-halo-substituted regioisomers of benzo[e][1,2]oxaphosphinines.