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Photoinduced Group Transfer Radical Addition of Carbamotelluroates to Acetylenes
- Source :
- Organic Letters; June 2001, Vol. 3 Issue: 13 p2085-2088, 4p
- Publication Year :
- 2001
-
Abstract
- <UFIGR ID="ol016042pn00001">Te-Phenyl carbamotelluroates <BO>1</BO> add to acetylenes under irradiation of visible light to yield β-telluroacrylamides <BO>2</BO> regioselectively. This reaction would be initiated by homolytic cleavage of the carbamoyl carbon−tellurium bond, producing carbamoyl and PhTe radicals. The addition reaction proceeds via a radical chain mechanism comprising two processes: (i) addition of carbamoyl radicals at the terminal carbon of the triple bond, giving vinylic radicals, and (ii) S<INF>H</INF>2 reaction on the Te atom caused by the attack of the vinyl radicals to <BO>1</BO>.
Details
- Language :
- English
- ISSN :
- 15237060 and 15237052
- Volume :
- 3
- Issue :
- 13
- Database :
- Supplemental Index
- Journal :
- Organic Letters
- Publication Type :
- Periodical
- Accession number :
- ejs1161297