Synthesis of Enantiopure 3,5-Disubstituted Pyrrolidines by Ring-Opening/Cross-Metathesis Reaction of 2-Azanorbornene Derivatives
作者:Odón Arjona、Ana Querejeta、Ma José Cabas、José Nieto-Rubio
DOI:10.3987/com-06-10825
日期:——
A concise method for the synthesis of enantiopure3,5-disubstituted pyrrolidines from 2-azanorbomene derivatives is described. The method is also applied to the synthesis of 3,5-disubstituted prolines.
Ring-opening metathesis of some strained bicyclic systems; stereocontrolled access to diolefinated saturated heterocycles with multiple stereogenic centers
作者:Zsanett Benke、Melinda Nonn、Márton Kardos、Santos Fustero、Loránd Kiss
DOI:10.3762/bjoc.14.247
日期:——
Ring-opening metathesis (ROM) of various unsaturated, constrained bicyclic ring systems has been investigated with the use of commercial ruthenium-based catalysts. Starting from various cyclodienes, the corresponding derived bicyclic lactone, lactam, and isoxazoline derivatives were submitted to ROM under ethenolysis. These functionalized, strained bicyclic systems afforded novel highly-functionalized