Synthesis of an A/B- cis-Fused Cyclopenta[ b]fluorene (6/5/6/5) Ring System for Embellicine A via the Eight-Membered Silylene-Tethered IMDA Reaction
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The first synthesis of an A/B-cis-fused cyclopenta[b]fluorene (6/5/6/5) ring system was successfully achieved via an intramolecular Diels-Alder (IMDA) reaction of an eight-membered silylene-tethered precursor. In this key step, a significant conformational cha... ...
