DIRECTION OF THE HETEROCYCLIZATION REACTION OF 3-ALLYL- AND 3-PROPARGYLSULFANYL-5<i>H</i>-[1,2,4]TRIAZINO[5,6-<i>b</i>]INDOLES
DOI:
https://doi.org/10.1007/377Keywords:
3-allylsulfanyl-5H-[1, 2, 4]triazino[5, 6-b]indole, methylidene-2, 3-dihydro[1, 3]thiazolo[1, 6-b]indoles, methyl[1, 3-propargylsulfanyl-5H-[1, heterocyclization, iodocyclization, X-ray structural analysisAbstract
It has been established by X-ray structural analysis that the iodocyclization of 3-allylsulfanyl-5H-[1,2,4]triazino[5,6-b]indole occurs at the N-2 atom. It was shown that heterocyclization of 3-propargylsulfanyl-5H-[1,2,4]triazino[5,6-b]indoles proceeds in the presence of alkali at the N-2 atom but under the action of sulfuric acid at the N-4 atom.
Authors: A. V. Rybakova, P. A. Slepukhin, and D. G. Kim.
English Translation in Chemistry of Heterocyclic Compounds, 2013, 49 (8), pp 1232-1236
http://link.springer.com/article/10.1007/s10593-013-1367-1