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STRUCTURE AND STEREOCHEMISTRY OF NORSECURININE AND DIHYDRONORSECURININE.
Carbamoylmethl Radical Cyclization : Formal Synthesis of (-)-Trachelanthamidine
Tributyltin hydride-mediated radical cyclization of the (2S)-N-(α-chloroacetyl)-2-ethenylpyrrolidines 13a, b and 15 and the bis(phenylthio)acetyl congener-14 derived from (S)-prolinol gave (1R,Expand
5-Endo-Trig Radical Cyclizations
5-Endo-trig ring-closure is recognized as a disfavored process. However, a number of examples of such a type of cyclization have recently been reported. This review focuses on studies of 5-endo-trigExpand
Formation of five-membered lactams by 5-endo-trigonal radical cyclisations of 2-chloro-N-(cycloalk-1-enyl)acetamides: new synthesis of erythrinane skeleton
Free-radical cyclisations of a range of 2-chloro-N-(cycloalk-1-enyl)acetamides have been examined. The enamide 5, upon treatment with Bu3SnH in the presence of azoisobutyronitrile, underwentExpand
Regio- and stereo-chemical aspects of [2+2]photocycloaddition between 1-benzoylindoles and olefins
The regio- and stereo-selectivities in the [2 + 2] photocycloaddition of a series of 1-benzoylindoles with vinyl acetate and methyl acrylate have been investigated. With some exceptions, the 1Expand
Triethylborane-mediated atom-transfer cyclisation of 2-iodo-N-(prop-2-enyl)acetamides and related compounds
The 2-iodo-N-(prop-2-enyl)acetamides 1, upon treatment with triethylborane (0.2–0.6 mol equiv.) in boiling benzene, undergo iodine atom-transfer cyclisation to give theExpand
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