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Bi(III) Catalysed O-acylative cleavage of 2,5-dimethyltetrahydrofuran: A substrate dependent borderline mechanism (2005)
Journal Article
Costello, J. F., Draffin, W. N., & Paver, S. P. (2005). Bi(III) Catalysed O-acylative cleavage of 2,5-dimethyltetrahydrofuran: A substrate dependent borderline mechanism. Tetrahedron, 61(28), 6715-6719. https://doi.org/10.1016/j.tet.2005.05.014

The Bi(III) catalysed O-acylative cleavage of cis- and trans-2,5- dimethyltetrahydrofuran 4 with AcCl, BzCl or i-PrCOCl is stereochemically consistent with the operation of a concerted process (AND N), which proceeds via a stabilised carbocation or '... Read More about Bi(III) Catalysed O-acylative cleavage of 2,5-dimethyltetrahydrofuran: A substrate dependent borderline mechanism.

Bi(III) halides as efficient catalysts for the O-acylative cleavage of tetrahydrofurans: An expeditious entry to tetralins (2005)
Journal Article
Coles, S. J., Costello, J. F., Draffin, W. N., Hursthouse, M. B., & Paver, S. P. (2005). Bi(III) halides as efficient catalysts for the O-acylative cleavage of tetrahydrofurans: An expeditious entry to tetralins. Tetrahedron, 61(18), 4447-4452. https://doi.org/10.1016/j.tet.2005.02.080

The mild (DCM/20°C), quantitative, regioselective, O-acylative cleavage of tetrahydrofurans using organic acid halides with catalytic Bi(III) halides is reported. X-ray crystallography is used to rationalise the failure of the reaction in the case of... Read More about Bi(III) halides as efficient catalysts for the O-acylative cleavage of tetrahydrofurans: An expeditious entry to tetralins.

Upon the intriguing stereoselective formation of organobismuth(V) complexes (2003)
Journal Article
Barucki, H., Coles, S. J., Costello, J. F., & Hursthouse, M. B. (2003). Upon the intriguing stereoselective formation of organobismuth(V) complexes. Chemistry - A European Journal, 9(12), 2877-2884. https://doi.org/10.1002/chem.200304852

The preparation of triphenyl-bismuth(v) 3a-k and antimony(v) 4e-k bis-carboxy ester complexes is described. A range of studies in solution suggest that the diastereoselective formation of (RR,SS)-3a-j is governed by the thermodynamic stability of rap... Read More about Upon the intriguing stereoselective formation of organobismuth(V) complexes.

A structural and mechanistic investigation of the mono-O-phenylation of diols with BiPh3(OAc)2 (2002)
Journal Article
Coles, S. J., Costello, J. F., Hursthouse, M. B., & Smith, S. (2002). A structural and mechanistic investigation of the mono-O-phenylation of diols with BiPh3(OAc)2. Journal of Organometallic Chemistry, 662(1-2), 98-104. https://doi.org/10.1016/S0022-328X%2802%2901895-8

The mono-O-phenylation of enantiomerically pure pinanediol 2 using BiPh3(OAc)2 1 and the biphenyl-2,2′-ylenephenylbismuth analogue 9 has been investigated. It is postulated that reductive elimination at the trigonal bipyramidal bismuth (V) centre of... Read More about A structural and mechanistic investigation of the mono-O-phenylation of diols with BiPh3(OAc)2.

Conformational diastereoisomers of PPh3 coordinated to stereogenic metal centres as molecular optical switches (2001)
Journal Article
Ayscough, A. P., Costello, J. F., & Davies, S. G. (2001). Conformational diastereoisomers of PPh3 coordinated to stereogenic metal centres as molecular optical switches. Tetrahedron: Asymmetry, 12(11), 1621-1624. https://doi.org/10.1016/S0957-4166%2801%2900253-1

The specific rotation of (RFe,R,M)-4 switches sign upon epimerisation to (RFe,S,P)-5. X-Ray crystallographic studies suggest that inversion of the propeller configuration of the coordinated PPh3 ligand is the major contributor to the switch of specif... Read More about Conformational diastereoisomers of PPh3 coordinated to stereogenic metal centres as molecular optical switches.

Synthesis and structure of organoantimony (V) cyclometallates: Transannular interactions and the barrier to cyclisation (2001)
Journal Article
Barucki, H., Coles, S. J., Costello, J. F., & Hursthouse, M. B. (2001). Synthesis and structure of organoantimony (V) cyclometallates: Transannular interactions and the barrier to cyclisation. Journal of Organometallic Chemistry, 622(1-2), 265-273. https://doi.org/10.1016/S0022-328X%2800%2900923-2

A variety of α-hydroxy carboxylic acid salts [AgO2CC(OH)R1R2] react with SbPh3Cl2 1 to afford the cyclometalled complexes 4b-g. A single crystal X-ray analysis of (±)-4g reveals the presence of conformational diastereoisomers arising from the helical... Read More about Synthesis and structure of organoantimony (V) cyclometallates: Transannular interactions and the barrier to cyclisation.

Characterising secondary bonding interactions within triaryl organoantimony(v) and organobismuth(v) complexes (2000)
Journal Article
Barucki, H., Coles, S. J., Costello, J. F., Gelbrich, T., & Hursthouse, M. B. (2000). Characterising secondary bonding interactions within triaryl organoantimony(v) and organobismuth(v) complexes. https://doi.org/10.1039/b002337j

The thermodynamically preferred conformations of the five-co-ordinate trigonal-bipyramidal complexes SbPh3CI21 and BiPh3Cl2 2, determined via van der Waals energy calculations, have been found to be in good agreement with the corresponding correlated... Read More about Characterising secondary bonding interactions within triaryl organoantimony(v) and organobismuth(v) complexes.

The conformational analysis of phosphine ligands in organometallic complexes: Part 2: Triphenylphosphine coordinated to achiral and prochiral octahedral metal centres (1999)
Journal Article
Costello, J. F., Davies, S. G., & McNally, D. (1999). The conformational analysis of phosphine ligands in organometallic complexes: Part 2: Triphenylphosphine coordinated to achiral and prochiral octahedral metal centres. Journal of the Chemical Society, Perkin Transactions 2, 465-474. https://doi.org/10.1039/A808794F

The novel concept of nadir energy planes has been used to illuminate the principles governing the preferred orientation of rings A-C in PPh3 1, coordinated to achiral octahedral metal complexes of the type [M(PPh3)L1-5] 2a-d, and prochiral octahedral... Read More about The conformational analysis of phosphine ligands in organometallic complexes: Part 2: Triphenylphosphine coordinated to achiral and prochiral octahedral metal centres.