Stereoselective synthesis of C-fused pyranoindoles, pyranobenzofurans and pyranobenzothiophene scaffolds using oxa-Pictet-Spengler type reaction of vinylogous carbonates
DSpace at IIT Bombay
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Title |
Stereoselective synthesis of C-fused pyranoindoles, pyranobenzofurans and pyranobenzothiophene scaffolds using oxa-Pictet-Spengler type reaction of vinylogous carbonates
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Creator |
GHARPURE, SJ
PRASATH, V |
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Subject |
PALLADIUM-CATALYZED REACTIONS
CYCLIZATION ACID DERIVATIVES INDOLES CONSTRUCTION ALKYLATION POLYMERASE INHIBITORS DISCOVERY |
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Description |
C-fused pyranoheterocycles can be readily assembled using an intramolecular oxa-Pictet-Spengler type reaction of vinylogous carbonates in a highly stereoselective manner. Required indole and benzofuran rings tethered to vinylogous carbonates are prepared by a tandem Sonogashira coupling-nucleopalladation reaction. The entire process can also be carried out in a 'one-pot' manner starting from homopropargyl alcohol. The C-fused pyranoindoles could be converted to spirooxindoles as well as to ring expanded products under oxidative conditions.
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Publisher |
ROYAL SOC CHEMISTRY
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Date |
2014-12-28T12:12:09Z
2014-12-28T12:12:09Z 2014 |
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Type |
Article
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Identifier |
ORGANIC & BIOMOLECULAR CHEMISTRY, 12(37)7397-7409
1477-0520 1477-0539 http://dx.doi.org/10.1039/c4ob01387e http://dspace.library.iitb.ac.in/jspui/handle/100/16460 |
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Language |
English
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