Organolanthanide-Catalyzed Cyclodimerizations of Disubstituted Alkynes

H.J. Heeres; Andre Heeres; J.H. Teuben

doi:10.1021/om00119a023

Organolanthanide-Catalyzed Cyclodimerizations of Disubstituted Alkynes

H.J. Heeres, Andre Heeres, J.H. Teuben

Stratingh Institute of Chemistry

Onderzoeksoutput › Academic › peer review

87 Citaten (Scopus)

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The lanthanide alkyls Cp2*LnCH(SiMe3)2 (Ln = La, Ce) are efficient catalysts for the cyclodimerization of 2-alkynes MeC≡CR (R = Me, Et, n-Pr) to 1,2-disubstituted 3-alkylidenecyclobutenes. The first step in the reaction is a propargylic metalation of the α-methyl group, giving Cp*2LnCH2C≡CR compounds and free CH2(SiMe3)2.

Originele taal-2	English
Pagina's (van-tot)	1508-1510
Aantal pagina's	3
Tijdschrift	Organometallics
Volume	9
Nummer van het tijdschrift	5
DOI's	https://doi.org/10.1021/om00119a023
Status	Published - mei-1990

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title = "Organolanthanide-Catalyzed Cyclodimerizations of Disubstituted Alkynes",

abstract = "The lanthanide alkyls Cp2*LnCH(SiMe3)2 (Ln = La, Ce) are efficient catalysts for the cyclodimerization of 2-alkynes MeC≡CR (R = Me, Et, n-Pr) to 1,2-disubstituted 3-alkylidenecyclobutenes. The first step in the reaction is a propargylic metalation of the α-methyl group, giving Cp*2LnCH2C≡CR compounds and free CH2(SiMe3)2.",

author = "H.J. Heeres and Andre Heeres and J.H. Teuben",

note = "Relation: http://www.rug.nl/scheikunde/ date_submitted:2005 Rights: University of Groningen. Stratingh Institute",

year = "1990",

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doi = "10.1021/om00119a023",

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T1 - Organolanthanide-Catalyzed Cyclodimerizations of Disubstituted Alkynes

AU - Heeres, H.J.

AU - Heeres, Andre

AU - Teuben, J.H.

N1 - Relation: http://www.rug.nl/scheikunde/ date_submitted:2005 Rights: University of Groningen. Stratingh Institute

PY - 1990/5

Y1 - 1990/5

N2 - The lanthanide alkyls Cp2*LnCH(SiMe3)2 (Ln = La, Ce) are efficient catalysts for the cyclodimerization of 2-alkynes MeC≡CR (R = Me, Et, n-Pr) to 1,2-disubstituted 3-alkylidenecyclobutenes. The first step in the reaction is a propargylic metalation of the α-methyl group, giving Cp*2LnCH2C≡CR compounds and free CH2(SiMe3)2.

AB - The lanthanide alkyls Cp2*LnCH(SiMe3)2 (Ln = La, Ce) are efficient catalysts for the cyclodimerization of 2-alkynes MeC≡CR (R = Me, Et, n-Pr) to 1,2-disubstituted 3-alkylidenecyclobutenes. The first step in the reaction is a propargylic metalation of the α-methyl group, giving Cp*2LnCH2C≡CR compounds and free CH2(SiMe3)2.

U2 - 10.1021/om00119a023

DO - 10.1021/om00119a023

M3 - Article

SN - 0276-7333

VL - 9

SP - 1508

EP - 1510

JO - Organometallics

JF - Organometallics

IS - 5

ER -

Organolanthanide-Catalyzed Cyclodimerizations of Disubstituted Alkynes

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