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2004
Indan derivatives
Q 1050
5-Exo-dig Radical Cyclization of Enediynes: The First Synthesis of Tin-SubstitutBenzofulvenes. — The radical title cyclization provides a mild and efficient ap45- 114 ed
proach to tin-substituted fulvenes obtained as a mixture of (E)- and (Z)-isomers. They
are isolated as (E)- and (Z)-fulvenes after destannylation with HCl. The intermediates
have a high synthetic potential in various reactions with both electrophiles and nucleophiles providing an easy access to substituted benzofulvenes and indenes. —
(KOVALENKO, S. V.; PEABODY, S.; MANOHARAN, M.; CLARK, R. J.;
ALABUGIN*, I. V.; Org. Lett. 6 (2004) 14, 2457-2460; Dep. Chem. Biochem., Fla.
State Univ., Tallahassee, FL 32306, USA; Eng.) — Steudel
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