Fluorine effect on pericyclic and pseudopericyclic processes: Evidences and ab initio theory
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Abstract
Electrocyclic ring opening (ERO) reactions of 2-pyrone, 2-pyranol and pyran and their fluoro compounds (1–6) have been studied at MP2/6-31G(d) level with special emphasis on the influence of fluorine on these pericyclic/pseudopericyclic processes. Calculations clearly predict that substitution of fluorine at C6 favour the reaction both kinetically and thermodynamically. Magnetic susceptibility anisotropy (Δχ aniso), NICS(0), NBO and bond critical property (BCP) analyses clearly illustrate the following; 2-pyrone (1) and 6-fluoro-2-pyrone (2) reactions are pseudopericyclic; 6-fluoro-2-pyranol (reaction 4) corresponds to a borderline case; 2-pyranol (3) and pyran (5) and 6-fluoro pyran (6) reactions are clearly pericyclic in character. Correspondingly pseudeopericyclic reactions show up orbital disconnections and fluorine delays the occurrence of orbital disconnections on the reaction trajectory.
Keywords
Pericyclic reaction pseudeopericyclic reaction fluorine NICS(0) orbital disconnections NBO analysisReferences
- 1.Lemal D 1976 J. Am. Chem. Soc. 98 4325CrossRefGoogle Scholar
- 2.Birney D M and Wagenseller P E 1994 J. Am. Chem. Soc. 116 6262CrossRefGoogle Scholar
- 3.Birney D M, Ham S and Unruh G R 1997 J. Am. Chem. Soc. 119 4509CrossRefGoogle Scholar
- 4. (a)Birney D M, Xu X and Ham S 1999 Angew. Chem., Int. Ed. 38 189CrossRefGoogle Scholar
- 4. (b)Birney D M 2000 J. Am. Chem. Soc. 122 10917CrossRefGoogle Scholar
- 5.Shumway W W, Dalley N K and Birney D M 2001 J. Org. Chem. 66 5832CrossRefGoogle Scholar
- 6.Zhou C and Birney D M 2002 J. Am. Chem. Soc. 124 5237Google Scholar
- 7.Herges R, Jiao H and Schleyer P v R 1994 Angew. Chem., Int. Ed. Engl. 33 1376CrossRefGoogle Scholar
- 8.Schleyer P v R, Maerker C, Dransfeld A, Jiao H and van Eikema Hommes N J R 1996 J. Am. Chem. Soc. 118 6317CrossRefGoogle Scholar
- 9.Herges R and Geuenich D 2001 J. Phys. Chem A 105 3214CrossRefGoogle Scholar
- 10.Herges R and Papafilippopoulos A 2001 Angew. Chem., Int. Ed. Engl. 40 4671CrossRefGoogle Scholar
- 11.Kimball D B, Weakley T J R, Herges R and Haley M M 2002 J. Am. Chem. Soc. 124 13463CrossRefGoogle Scholar
- 12.Geuenich D, Hess K, Köhler F and Herges R 2005 Chem. Rev. 105 3758CrossRefGoogle Scholar
- 13.Rodríguez-Otero J and Cabaleiro-Lago E M 2002 Angew. Chem., Int. Ed. 41 1147CrossRefGoogle Scholar
- 14.Rodríguez-Otero J and Cabaleiro-Lago E M 2002 Chem. Eur. J. 2003 9 1837CrossRefGoogle Scholar
- 15.Cabaleiro-Lago E M, Rodríguez-Otero J and Hermida-Ramón J M 2003 J. Phys. Chem A 107 4962CrossRefGoogle Scholar
- 16.Rodríguez-Otero J, Cabaleiro-Lago E M, Hermida-Ramón J M and Peña-Gallego A 2003 J. Org. Chem. 68 8823CrossRefGoogle Scholar
- 17.Montero-Campillo M M, Rodríguez-Otero J and Cabaleiro-Lago E M 2004 J. Phys. Chem A 108 8373CrossRefGoogle Scholar
- 18.Cabaleiro-Lago E M, Rodríguez-Otero J, Varela-Varela S M, Peña-Gallego A and Hermida-Ramón J 2005 J. Org. Chem. 70 392CrossRefGoogle Scholar
- 19.Cabaleiro-Lago E M, Rodríguez-Otero J, González-López I, Peña-Gallego and Hermida-Ramón J 2005 J. Phys. Chem A 109 5636CrossRefGoogle Scholar
- 20.López C S, Faza O N, Cossío F P, Cork D M and de Lera A R 2005 Chem. Eur. J. 2005 11 1734CrossRefGoogle Scholar
- 21.Savin A, Nesper R, Wengert S and Fässler T F 1997 Angew. Chem., Int. Ed. Engl. 36 1808CrossRefGoogle Scholar
- 22.Chamorro E 2003 J. Chem. Phys. 118 8687CrossRefGoogle Scholar
- 23.Chamorro E and Notario R 2004 J. Phys. Chem A 108 4099CrossRefGoogle Scholar
- 24.Chamorro E and Notario R 2005 J. Phys. Chem A 109 7594; Chamorro E and Notario R 2005 J. Phys. Chem A 109 4352CrossRefGoogle Scholar
- 25.Maito E, Poater J, Duran M and Sola M 2006 Chem. Phys. Chem. 7 111–113Google Scholar
- 26.Calvo-Losada S and Quirante Sánchez J J 2008 J. Phys. Chem A 112 8164CrossRefGoogle Scholar
- 27.Birney D M 1996 J. Org. Chem. 61 243CrossRefGoogle Scholar
- 28.Rodríguez-Otero J and Cabaleiro-Lago E M 2003 Chem. Eur. J. 9 1837CrossRefGoogle Scholar
- 29.Akilandeswari L and Venuvanalingam P 2007 J. Theor. Comp. Chem. 6 233CrossRefGoogle Scholar
- 30.Akilandeswari L 2008 Ph D Thesis, Bharathidasan UniversityGoogle Scholar
- 31.Karney W L and Borden W T 1997 J. Am. Chem. Soc. 119 3347CrossRefGoogle Scholar
- 32.Borden W T 1998 Chem. Commun. 1919Google Scholar
- 33.Barone V and Adamo C 1996 J. Chem. Phys. 105 11007CrossRefGoogle Scholar
- 34.Reva I, Breda S, Roseiro T, Eusébio S and Fausto R 2005 J. Org. Chem. 70 7701CrossRefGoogle Scholar
- 35.Frisch M J, Trucks G W, Schlegel H B, Scuseria G E, Robb M A, Cheeseman J R, Zakrzewski V G, Montgomery J, Stratmann R E, Burant J C, pprich, Millam J M, Daniels A D, Kudin K N, Strain M C, Farkas O, Tomasi J, Barone V, Cossi M, Cammi R, Mennucci B, Pomelli C, Adamo C, Clifford S, Ochterski J, Petersson G A, Ayala P Y, Cui Q, Morokuma K, Malick D K, Rabuck A D, Raghavachari K, Foresman J B, Cioslowski J, Ortiz J V, Baboul A G, Stefanov B B, Liu G, Liashenko A, Piskorz P, Komaromi I, Gomperts R, Martin R L, Fox D J, Keith T, Al-Laham M A, Peng C Y, Nanayakkara A, Gonzalez C, Challacombe M, Gill P M W, Johnson B G, Chen W, Wong M W, Andres J L, Head-Gordon M, Replogle E S and Pople J A 1998 Gaussian 98, Revision A9, Gaussian, Inc: Pittsburgh, PAGoogle Scholar
- 36.Foster J P and Weinhold F 1980 J. Am. Chem. Soc. 102 7211CrossRefGoogle Scholar
- 37.Reed A D, Curtiss L A and Weinhold F 1988 Chem. Rev. 88 899CrossRefGoogle Scholar
- 38.Glendening E D, Reed A E, Carpenter J E and Weinhold F 1988 NBO 3.1 Program Manual Google Scholar
- 39.Fukui K 1981 Acc. Chem. Res. 14 363CrossRefGoogle Scholar
- 40.Gonzalez C and Schlegel H B 1989 J. Chem. Phys. 90 2154CrossRefGoogle Scholar
- 41.Gonzalez C and Schlegel H B 1990 J. Phys. Chem. 94 5223Google Scholar
- 42.Wolinski K, Hilton J F and Pulay P 1990 J. Am. Chem. Soc. 112 8251CrossRefGoogle Scholar
- 43.Keith T A and Bader R F W 1993 Chem. Phys. Lett. 210 223CrossRefGoogle Scholar
- 44.Keith T A and Bader R F W 1992 Chem. Phys. Lett. 194 1CrossRefGoogle Scholar