128916-94-9Relevant academic research and scientific papers
Orthogonally protected 1,2-diols from electron-rich alkenes using metal-free olefin syn-dihydroxylation
Colomer, Ignacio,Barcelos, Rosimeire Coura,Christensen, Kirsten E.,Donohoe, Timothy J.
supporting information, p. 5880 - 5883 (2016/11/29)
A new method for the stereoselective metal-free syn-dihydroxylation of electron-rich olefins is reported, involving reaction with TEMPO/IBX in trifluoroethanol (TFE) or hexafluoroisopropanol (HFIP) and the addition of a suitable nucleophile. Orthogonally
One-pot synthesis of fused benzo[c]carbazoles by photochemical intramolecular annulation of 3-acyl-2-haloindoles with tethered styrenes
Lu, Shen-Ci,Wei, Shi-Chao,Wang, Wei-Xia,Zhang, Wei,Tu, Zhi-Feng
supporting information; experimental part, p. 5905 - 5910 (2011/11/06)
An efficient procedure for the synthesis of fused benzo[c]carbazoles has been achieved in moderate to high yields by the one-pot photochemical annulation of 3-acyl-2-haloindoles with tethered styrenes by photoinduced electron-transfer coupling, electrocyclic reactions, and deacylative aromatization in the presence of pyridine. Fused furo[2,3-c]carbazoles were also synthesized under the same conditions. 5,6-Dihydrobenzo[c]pyrrolo[1,2,3-lm] carbazoles were oxidized by DDQ to afford aromatic benzo[c]pyrrolo[1,2,3-lm] carbazole products in moderate to high yields.
One-pot synthesis of benzo[f]quinolin-3-ones and benzo[a]phenanthridein-5- ones by the photoanuulation of 6-chloropyridin-2-ones and 3-chloroisoquinolin-1- ones to phenylacetylene
Wang, Ren,Lu, Shen-Ci,Zhang, Yi-Ming,Shi, Zong-Jun,Zhang, Wei
supporting information; experimental part, p. 5802 - 5808 (2011/10/02)
The one-pot synthesis of benzo[f]quinolin-3-ones and benzo[a] phenanthridein-5-ones was achieved by the inter- and intramolecular photoannulation of 6-chloropyridin-2-ones and 3-chloroisoquinolin-1-ones with phenylacetylene or tethered phenylacetylene. The reactions were proceeded by photoaddition of 6-chloropyridin-2-ones and 3-chloroisoquinolin-1-ones to phenylacetylene to give the chlorine-substituted stilbenoids, and then 6π electrocyclization of the stilbenoids and oxidation aromatization to afford the polycyclic products.
