A simple iodination protocol via in situ generated ICl using NaI/FeCl3
作者:Arasambattu K. Mohanakrishnan、Chandran Prakash、Neelamegam Ramesh
DOI:10.1016/j.tet.2006.01.067
日期:2006.4
A novel iodination of silyl-enol ethers using hitherto unexplored NaI/FeCl3 system is reported. The procedure has been extended to the iodination of aromatic and hetero aromatic compounds. (c) 2006 Elsevier Ltd. All rights reserved.
Tributyltin Hydride–Mediated Synthesis of Bicyclic Carbocycles Initiated by Et<sub>3</sub>B/O<sub>2</sub>
作者:Chandran Prakash、Ganesan Gobi Rajeshwaran、Arasambattu K. Mohanakrishnan
DOI:10.1080/00397910903219484
日期:2010.6.25
Synthesis of bicyclic carbocycles involving tributyltin hydride-mediated -carbonyl radical cyclization reaction at room temperature has been reported.
Total Syntheses of (±)-Axamide-1 and (±)-Axisonitrile-1 via 6-<i>Exo-dig</i> Radical Cyclization
Thienylcyanocuprate 24 mediated conjugated addition of 5-(trimethylsilyl)-4-pentynylmagnesium chloride (23) to 3-methylcyclopenten-1-one (22) and subsequent treatment with TMSCl afforded silyl enol ether 25. Iodination of 25 with NaI and m-CPBA afforded α-iodoketone 21. 6-Exo-dig radical cyclization of 21 and subsequent desilylation furnished hydroindane derivative 20. Bicyclic ketone 20 was converted to nitrile