![A Convenient New Route to Piperidines, Pyrrolizidines, Indolizidines, and Quinolizidines by Cyclization of Acetylenic Sulfones with β- and γ-Chloroamines. Enantioselective Total Synthesis of Indolizidines
<b>(</b>
<b>−</b>
<b>)-167B</b>
,
<b>(</b>
<b>−</b>
<b>)-209D</b>
,
<b>(</b>
<b>−</b>
<b>)-209B</b>
, and
<b>(</b>
<b>−</b>
<b>)-207A</b>]()
A Convenient New Route to Piperidines, Pyrrolizidines, Indolizidines, and Quinolizidines by Cyclization of Acetylenic Sulfones with β- and γ-Chloroamines. Enantioselective Total Synthesis of Indolizidines
<b>(</b>
<b>−</b>
<b>)-167B</b>
,
<b>(</b>
<b>−</b>
<b>)-209D</b>
,
<b>(</b>
<b>−</b>
<b>)-209B</b>
, and
<b>(</b>
<b>−</b>
<b>)-207A</b>Back, Thomas G.; Nakajima, Katsumasa · The Journal of Organic Chemistry · 2000