65439-78-3Relevant academic research and scientific papers
POLYMERISATION OF INDOLE. PART 2. A NEW INDOLE TRIMER
Ishii, Hisashi,Murakami, Keiko,Sakurada(nee Kawanabe), Eri,Hosoya, Katsuhiro,Murakami, Yasuoki
, p. 2377 - 2386 (2007/10/02)
Treatment of indole (1) with toluene-p-sulphonic acid in benzene provided the 2,3'-indole trimer (4), a positional isomer of the well known 3,3'-indole trimer (3).The structure of the new trimer (4) was established by comparitive studies with the trimers (3) and (4).
POLYMERISATION OF INDOLE. PART 3. TWO INDOLYLQUINOLINES, AN INDOLE TETRAMER, AND THE DIHYDRO DERIVATIVE OF THE INDOLE DIMER
Ishii, Hisashi,Sakurada(nee Kawanabe), Eri,Murakami, Keiko,Takase, Shigehiro,Tanaka, Hirokazu
, p. 2387 - 2396 (2007/10/02)
Treatment of indole (1) with toluene-p-sulphonic acid in Dowtherm A gave the dihydro dimer (7), the indol-3-ylquinoline (8), the indol-2-ylquinoline (10), and the tetramer (19).The indol-3-ylquinoline (8) was also produced on treatment of the 2,3'-trimer (3) with zinc chloride in acetic acid or with toluene-p-sulphonic acid in Dowtherm A.The identification of these products (78), (8), (10), and (19) is described and the mechanisms of formation are discussed.
