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Efficient Synthesis of Five‐ and Seven‐Membered‐Ring Heterocycles by Rhodium( II )‐Catalyzed [3+2] and [3+4] Cycloaddition of Diazodicarbonyl Compounds with Conjugated Dienes
Author(s) -
Rok Lee Yong,
Cheol Hwang Jae
Publication year - 2005
Publication title -
european journal of organic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.825
H-Index - 155
eISSN - 1099-0690
pISSN - 1434-193X
DOI - 10.1002/ejoc.200400452
Subject(s) - rhodium , chemistry , conjugated system , cycloaddition , ring (chemistry) , catalysis , combinatorial chemistry , organic chemistry , medicinal chemistry , stereochemistry , polymer
Rhodium( II )‐catalyzed reactions of diazodicarbonyl compounds with a variety of conjugated dienes have been examined. These reactions provide a simple and rapid route to dihydrofurans and dihydrooxepines with a variety of substituents on the ring. The formation of these products is interpreted in terms of a stepwise mechanism. (© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2005)