One-shot photochemical synthesis of 5-(thiophen-3-yl)pyrano[2,3-c]chromen-2(3H)-ones from 3-propynyloxy-chromenones: a case of an intramolecular Paterno–Buchi reaction
| dc.contributor.author | Khullar, S. | |
| dc.contributor.author | Mandal, S.K. | |
| dc.date.accessioned | 2020-12-14T08:56:41Z | |
| dc.date.available | 2020-12-14T08:56:41Z | |
| dc.date.issued | 2014 | |
| dc.description | Only IISERM authors are available in the record. | |
| dc.description.abstract | 5-(Thiophen-3-yl)pyrano[2,3-c]chromen-2(3H)-ones (2), angular tricyclic compounds, were synthesized in significantly high yields through the photoinduced intramolecular coupling of the acetylenic group with the carbonyl centre in 3-(prop-2-ynyloxy)-2-(thiophen-3-yl)-4H-chromen-4-ones (1). This photoreaction is a case of an intramolecular Paterno–Buchi reaction and is unprecedented in 3-propynyloxy-chromenones. The structure of 2 has been determined by spectroscopic (FTIR, NMR and mass) and single crystal X-ray crystallographic studies. | en_US |
| dc.identifier.citation | Photochemical and Photobiological Sciences, 13(3), pp.488-491. | en_US |
| dc.identifier.other | https://doi.org/10.1039/C3PP50396H | |
| dc.identifier.uri | https://pubs.rsc.org/en/content/articlelanding/2014/PP/c3pp50396h#!divAbstract | |
| dc.identifier.uri | http://hdl.handle.net/123456789/3116 | |
| dc.language.iso | en | en_US |
| dc.publisher | Royal Society of Chemistry | en_US |
| dc.subject | Photochemical | en_US |
| dc.subject | Propynyloxy-chromenones | en_US |
| dc.subject | Photobiological | en_US |
| dc.title | One-shot photochemical synthesis of 5-(thiophen-3-yl)pyrano[2,3-c]chromen-2(3H)-ones from 3-propynyloxy-chromenones: a case of an intramolecular Paterno–Buchi reaction | en_US |
| dc.type | Article | en_US |