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Volumn 43, Issue 27, 2002, Pages 4875-4879

Stereoselective cyclizations mediated by functionalized organomagnesium reagents and catalyzed by cobalt or copper salts

Author keywords

[No Author keywords available]

Indexed keywords

COBALT DERIVATIVE; COPPER DERIVATIVE; MAGNESIUM DERIVATIVE; REAGENT;

ARTICLE; CATALYSIS; CATALYST; CHEMICAL REACTION; CIS TRANS ISOMERISM; CYCLIZATION; ENTHALPY; ION EXCHANGE; STEREOCHEMISTRY;

EID: 0036644090 PISSN: 00404039 EISSN: None Source Type: Journal
DOI: 10.1016/S0040-4039(02)00839-0 Document Type: Article

Times cited : (30)

References (17)

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- (1981) J. Am. Chem. Soc. , vol.103 , pp. 7672-7674
- Lipshutz, B.H.¹ Wilhelm, R.S.²

11
- 0000220284
- (1992) Org. React. , vol.41 , pp. 135-631
- Lipshutz, B.H.¹ Sengupta, S.²

13
- 0033618105
- (1999) J. Am. Chem. Soc. , vol.121 , pp. 6086-6087
- Ready, J.M.¹ Jacobsen, E.N.²

16
- 84995727779
- Geometry optimization was performed at the HF/6-31G(d) level of theory. Zero point vibrational energies and thermal corrections to enthalpies were also calculated at this level with a scaling factor of 0.89. Refined energy differences were then computed through single point calculations at the Becke3LYP/6-31G(d)//HF/6-31G(d) level and combined with the HF/6-31G(d) thermal corrections to yield enthalpy differences at 298 K. The strong preference for cis-27 is quite insensitive to the theoretical methods used, as neglect of thermal corrections or the use of HF instead of B3LYP energies leads to essentially the same result. All calculations were performed with Gaussian 98

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