Catalytic [2+2+1] Cross-Cyclotrimerization of Silylacetylenes and Two Alkynyl Esters To Produce Substituted Silylfulvenes

Three become one: The cationic rhodium(I) complex [Rh(cod)2]BF4 catalyzes the [2+2+1] cross‐cyclotrimerization of silylacetylenes and two alkynyl esters, leading to substituted silylfulvenes (see scheme; cod=1,5‐cyclooctadiene). The reductive complexation of the silylfulvene product with RhCl3 in Et...

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Bibliographic Details
Published inAngewandte Chemie International Edition Vol. 50; no. 46; pp. 10917 - 10921
Main Authors Shibata, Yu, Tanaka, Ken
Format Journal Article
LanguageEnglish
Published Weinheim WILEY-VCH Verlag 11.11.2011
WILEY‐VCH Verlag
Wiley
Wiley Subscription Services, Inc
EditionInternational ed. in English
Subjects
[2+2+1] cross-cyclotrimerization
alkynes
Chemistry
Chemistry, Multidisciplinary
cyclopentadienyl complexes
Esters
fulvenes
Physical Sciences
rhodium
Science & Technology
C-C-BOND
alkynes
COMPLEXES
cyclopentadienyl complexes
TERMINAL ALKYNES
INTERNAL ALKYNES
[2+2+1] cross-cyclotrimerization
H ACTIVATION
COUPLING REACTIONS
CATIONIC RHODIUM(I)/MODIFIED BINAP
fulvenes
rhodium
REGIOSELECTIVE INTERMOLECULAR CYCLOTRIMERIZATION
RHODIUM CATALYSIS
Online AccessGet full text
ISSN1433-7851
1521-3773
DOI10.1002/anie.201105517

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Summary:Three become one: The cationic rhodium(I) complex [Rh(cod)2]BF4 catalyzes the [2+2+1] cross‐cyclotrimerization of silylacetylenes and two alkynyl esters, leading to substituted silylfulvenes (see scheme; cod=1,5‐cyclooctadiene). The reductive complexation of the silylfulvene product with RhCl3 in EtOH furnished the corresponding dinuclear electron‐deficient cyclopentadienyl rhodium(III) complex.
Bibliography:MEXT (Japan)
This work was supported partly by Grants-in-Aid for Scientific Research (Nos. 23105512, 20675002, and 21906) from MEXT (Japan). We thank Umicore for generous support in supplying rhodium complexes.
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ArticleID:ANIE201105517
istex:E909DCEF64227BD65ABCA53A61F433000C78B50D
This work was supported partly by Grants‐in‐Aid for Scientific Research (Nos. 23105512, 20675002, and 21906) from MEXT (Japan). We thank Umicore for generous support in supplying rhodium complexes.
KAKEN
ObjectType-Article-1
SourceType-Scholarly Journals-1
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ISSN:1433-7851
1521-3773
DOI:10.1002/anie.201105517