Pyridyl 'ring-flipping' in the dimers [Me2E(2-py)]2 (E = B, Al, Ga; 2-py = 2-pyridyl)

Felipe García; Alexander D. Hopkins; Richard A. Kowenicki; Mary McPartlin; Jared S. Silvia; Jeremy M. Rawson; Michael C. Rogers; Dominic S. Wright

doi:10.1039/b613748b

Pyridyl 'ring-flipping' in the dimers [Me₂E(2-py)]₂ (E = B, Al, Ga; 2-py = 2-pyridyl)

Felipe García, Alexander D. Hopkins, Richard A. Kowenicki, Mary McPartlin, Jared S. Silvia, Jeremy M. Rawson, Michael C. Rogers, Dominic S. Wright

Research output: Contribution to journal › Article › Research › peer-review

17 Citations (Scopus)

Abstract

The boron and aluminium dimers [Me₂E(μ-py)]₂ [E = B (1); Al (2)] are formed as mixtures of two isomers in which the group 13 centres are coordinated by the bridging 2-py ligands in a cis or trans manner, however, in contrast to previous studies, we find that simply heating the mixtures of these isomers of 1 and 2 gives the more thermodynamically stable (synthetically useful) trans isomers exclusively (the trans isomer being the only product in the case of the gallium analogue 3).

Original language	English
Pages (from-to)	586-588
Number of pages	3
Journal	Chemical Communications
Issue number	6
DOIs	https://doi.org/10.1039/b613748b
Publication status	Published - 2007
Externally published	Yes

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10.1039/b613748b

Cite this

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title = "Pyridyl 'ring-flipping' in the dimers [Me2E(2-py)]2 (E = B, Al, Ga; 2-py = 2-pyridyl)",

abstract = "The boron and aluminium dimers [Me2E(μ-py)]2 [E = B (1); Al (2)] are formed as mixtures of two isomers in which the group 13 centres are coordinated by the bridging 2-py ligands in a cis or trans manner, however, in contrast to previous studies, we find that simply heating the mixtures of these isomers of 1 and 2 gives the more thermodynamically stable (synthetically useful) trans isomers exclusively (the trans isomer being the only product in the case of the gallium analogue 3).",

author = "Felipe Garc{\'i}a and Hopkins, \{Alexander D.\} and Kowenicki, \{Richard A.\} and Mary McPartlin and Silvia, \{Jared S.\} and Rawson, \{Jeremy M.\} and Rogers, \{Michael C.\} and Wright, \{Dominic S.\}",

year = "2007",

doi = "10.1039/b613748b",

language = "English",

pages = "586--588",

journal = "Chemical Communications",

issn = "1359-7345",

publisher = "The Royal Society of Chemistry",

number = "6",

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T1 - Pyridyl 'ring-flipping' in the dimers [Me2E(2-py)]2 (E = B, Al, Ga; 2-py = 2-pyridyl)

AU - García, Felipe

AU - Hopkins, Alexander D.

AU - Kowenicki, Richard A.

AU - McPartlin, Mary

AU - Silvia, Jared S.

AU - Rawson, Jeremy M.

AU - Rogers, Michael C.

AU - Wright, Dominic S.

PY - 2007

Y1 - 2007

N2 - The boron and aluminium dimers [Me2E(μ-py)]2 [E = B (1); Al (2)] are formed as mixtures of two isomers in which the group 13 centres are coordinated by the bridging 2-py ligands in a cis or trans manner, however, in contrast to previous studies, we find that simply heating the mixtures of these isomers of 1 and 2 gives the more thermodynamically stable (synthetically useful) trans isomers exclusively (the trans isomer being the only product in the case of the gallium analogue 3).

AB - The boron and aluminium dimers [Me2E(μ-py)]2 [E = B (1); Al (2)] are formed as mixtures of two isomers in which the group 13 centres are coordinated by the bridging 2-py ligands in a cis or trans manner, however, in contrast to previous studies, we find that simply heating the mixtures of these isomers of 1 and 2 gives the more thermodynamically stable (synthetically useful) trans isomers exclusively (the trans isomer being the only product in the case of the gallium analogue 3).

UR - https://www.scopus.com/pages/publications/33846846095

U2 - 10.1039/b613748b

DO - 10.1039/b613748b

M3 - Article

AN - SCOPUS:33846846095

SN - 1359-7345

SP - 586

EP - 588

JO - Chemical Communications

JF - Chemical Communications

IS - 6

ER -

Pyridyl 'ring-flipping' in the dimers [Me2E(2-py)]2 (E = B, Al, Ga; 2-py = 2-pyridyl)

Abstract

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Pyridyl 'ring-flipping' in the dimers [Me₂E(2-py)]₂ (E = B, Al, Ga; 2-py = 2-pyridyl)