Assembly of a Benzo‐Fused Bridged Ketone Scaffold from 1,5,10‐Enediynes through One‐Pot Ruthenium‐Catalyzed Cyclization/Iodine‐Mediated Oxidative Ring Expansion

Angewchem
Assembly of a Benzo‐Fused Bridged Ketone Scaffold from 1,5,10‐Enediynes through One‐Pot Ruthenium‐Catalyzed Cyclization/Iodine‐Mediated Oxidative Ring Expansion: In the presence of a cationic Ru catalyst, 1,6‐diynes bearing a terminal styryl moiety underwent [2+2+2] cyclization to produce dehydrobiphenylenes fused with a five‐membered ring. Although the cycloadducts...

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