conformational properties and the anomeric effect study of phosphinanes
محورهای موضوعی : Journal of Chemical Reactivity and Synthesis
Javad Azizian
1
(Department of chemistry, Science and Reaserch branch, Islamic azad
university, Tehran, Iran)
Mahdieh Entezari
2
(Department of chemist r,y Mahshahr branch, Islamic azad university,
Mahshahr, Iran)
Hossein Anaraki Ardakani
3
(Department of chemist r,y Mahshahr branch, Islamic azad university,
Mahshahr, Iran)
Shahab Zomorodbakhsh
4
(Department of chemist r,y Mahshahr branch, Islamic azad university,
Mahshahr, Iran)
کلید واژه: bond length, anomeric effect, 2- phosphinane, axial and equatorial position, Ab initio calculations,
چکیده مقاله :
Ab initio HF/6-31G* Methode was employed to calculate the bond length in 2- phosphinanes when electronegative groups was at C-2 tend axial and equatorial positions. The magnitude of the anomeric effect depends on the nature of the substituent, the effect of the substituent can be seen by comparing the bond length in 2-chloro and 2- boromo substituented phosphinanes. The effect of anomeric effect have been effected on the bond length in 2-phosphinanes.
[1] C.L, Perrin, K. B, Armstrong, M. A, Fabian: J. Am. Chem. Soc. 116, 1994, pp. 715-722.
[2] Chu N, J. Ph.D Thesis, university of Ottawa, 1959.
[3] R. U, Lemieux, Chu, N. J. Abstracts of papers, 133th national meeting of the American
Chemical society; Washington, DC, 1958, Abstr. 31N.
[4] E, Juaristi; G, Cuevas: Tetrahedron 48 (1992) 5019.
[5] A. J Kirby: Springer Verlag, Berlin, (1983).
[6] R. U, Lemieux. In Molecular Rearrangement; P. De Mayo, Ed: Interscience, New York,
(1964), pp. 723.
[7] W. A. Szarek, D. Horton, the anomeric effect: Origin and Consequences, ACS Symposium
series no. 87, American Chemical Society, Washington D.C, (1979).
[8] S. Wolfe, A. Rauk, L. M. Tel, I. G. Csizmaida, J. Chem. Soc. B: 136 (1971). Eisenstein, W. J.
Hehre, L. salem, R. Hoffmann: J. Am. Chem. Soc: 95 (1973) 306.
[9] M J. Gallager, phosphorus 31-NMR spectroscopy in Stereochemical Analysis, edited by J G.
Verkade , L D. Quin, 1987, Chapter9.
[10] W. E. McEwen , K. D. Berlin,
[12] M. J. Frisch, G. W. Trucks, H. B. Schlegel, G. E. Scuseria, M. A. Robb, J. R. Cheeseman,
V. G. Zakrzewski, J. A. Montgomery, R. E. Stratmann, J. C. Jr. Burant, S Dapprich., J. Millam,
V. Barone, M. Cossi, R. Cammi, B. Mennucci C. Pomelli, C. Adamo, S. Clifford, j. Ochterski,
G. A. Petersson, P. Y. Ayala, Q. Cui, K. Morokuma, D. K. Malick, A. D. Rabuck, K.
Raghavachari, J. B. Foresman, j. Cioslowski, J. V. Ortiz, B. tefanovb, G. Liu, A. Liashenko, P.
Piskorz, I. Komaromi, R. Gomperts, R. L. Martin, D. J. Fox, T. Keith, M. A Al-Laham. C. Y.
Peng, A Nanayakkara., C. Gonzalez, M. Challacombe, P. M. W. Gill, B .Johnson, W.Chen, M.
W.Wong, J. L Andres, M. Head-Gordon, E. S. Replogle, J. A. Pople, GAUSSIAN 98 (Revision
A. 3) Gaussian Inc., Pittsburgh, PA, (1998).
