α-Acylamino Radical Cyclizations: Syntheses of Isoretronecanol
α-Acylamino radicals 1-3 can be generated by tri-n-butyltin radical mediated cleavage of a carbon-sulfur bond.These radicals cyclize with good regio- and stereoselectivity to afford pyrrolizidinones.Cyclization products 12a and 23a were converted to the alkaloid isoretronecanol (4).
Hart, David J.,Tsai, Yeun-Min
p. 8209 - 8217
(2007/10/02)
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