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Intramolecular Huisgen‐Type Cyclization of Platinum‐Bound Pyrylium Ions with Alkenes and Subsequent Insertion into a Benzylic CH Bond
Author(s) -
Oh Chang Ho,
Lee Ji Ho,
Lee Su Jin,
Kim Jae Il,
Hong Chang Seop
Publication year - 2008
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.200802425
Subject(s) - chemistry , alkene , platinum , cycloaddition , intramolecular force , carbene , medicinal chemistry , double bond , side chain , stereochemistry , catalysis , photochemistry , polymer chemistry , organic chemistry , polymer
Access granted : The platinum‐catalyzed cyclization of enynals 1 , which contain an additional alkene bond in their side chain, through a [3+2] cycloaddition to give tetracyclic platinum–carbene complexes A was followed by CH insertion at the δ position to afford highly complex products 2 . These polycyclic compounds and related products of the title transformation are extremely difficult to access by other means.