Abstract
A theoretical study of the role of the Lewis acid on the regioselectivity in the acylation reaction of 2-benzoxazolinone with acetyl chloride has been carried out through DFT calculations at the B3LYP/6-31G** level of theory. FMO analysis and DFT-based reactivity indices predicted favourable of the 6-regioisomer product. Analysis of the potential energy surfaces indicates that this acylation reaction proceeds with high 6-regioselectivity due to the favourable interactions in this pathway. The results obtained corroborate very well with the experimental data.
Keywords
References
1.
Friedel C.
, and
Crafts J.M.
(1877 ) Compt. Rend. , 84 , 1392 , 1450.
2.
Olah G.A.
(ed.) (1963 –1965) Friedel–Crafts and related reactions , vols 1-4 . Wiley-Interscience , New York .
3.
Erdoğran H.
,
Ünlü S.
, and
Sunal R.
(1989 ) Arch. Pharm. , 322 , 75 –77 .
4.
Pilli G.
,
Erdoğran H.
, and
Sunal R.
(1993 ) Arzneim. Forsch. Drug Res. , 43 , 1351 .
5.
Vaccher M.P.
,
Lesieur D.
,
Lespagnol C.
,
Bonte J.P.
,
Lamar J.
,
Beaughard M.
, and
Dureng G.
(1986 ) Farmaco Ed. Sci. , 41 , 257 .
6.
Bonte J.P.
,
Piancastelli M.C.
,
Lesieur I.
,
Lamar J.C.
,
Beaughard M.
, and
Dureng G.
(1990 ) Eur. J. Med. Chem. , 25 , 361 .
7.
Katsura Y.
,
Nishino S.
, and
Takasugi H.
(1991 ) Chem. Pharm. Bull. , 39 , 2937 –2943 .
8.
Varma R.S.
, and
Kapoor A.
(1979 ) Indian J. Chem , 18B , 200 –204 .
9.
Erol D.D.
,
Erdoğran H.
, and
Yuluğr N.
(1989 ) J. Pharm. Belg. , 44 , 334 –336 .
10.
Yous S.
,
Poupaert J.H.
,
Lesieur I.
,
Depreux P.
, and
Lesieur D.
(1994 ) J. Org. Chem. , 59 , 1574 .
11.
Yamabe S.
, and
Yamazaki S.
(2009 ) J. Phys. Org. Chem. , 22 , 1094 –1103 .
12.
Zhou Y.
,
Li X.
,
Hou S.
, and
Xu J.
(2012 ) J. Mol. Catal. A Chem. , 365 , 203 –211 .
13.
Alves C.N.
,
Carneiro A.S.
,
Andrés J.
, and
Domingo L.R.
(2006 ) Tetrahedron , 62 , 5502 .
14.
Jursic B.S.
(1998 ) J. Mol. Struct. , 452 , 145 .
15.
Roy R.K.
,
Krishnamurti S.
,
Geerlings P.
, and
Pal S.
(1998 ) J. Phys. Chem. A, 102 , 3746 .
16.
Mendez F.
,
Tamariz J.
, and
Geerlings P.
(1998 ) J. Phys. Chem. A, 102 , 6292 .
17.
Yang W.
, and
Mortier W.J.
(1986 ) J. Am. Chem. Soc. , 108 , 5708 .
18.
Parr R.G.
, and
Yang W.
(1984 ) J. Am. Chem. Soc. , 106 , 4049 .
19.
Aichaoui H.
,
Poupaert J.H.
,
Lesieur D.
, and
Hénichart J.P.
(1991 ) Tetrahedron. , 47 , 6649 –6654 .
20.
Becke A.D.
(1993 ) J. Chem. Phys. , 98 , 5648 .
21.
Becke A.D.
(1988 ) Phys. Rev. A. , 38 , 3098 .
22.
Lee C.
,
Yang W.
, and
Parr R.G.
(1988 ) Phys. Rev. B. , 37 , 785 .
23.
Reed A.E.
,
Weinstock R.B.
, and
Weinhold F.
(1985 ) J. Chem. Phys. , 83 , 735 .
24.
Reed A.E.
,
Curtiss L.A.
, and
Weinhold F.
(1988 ) Chem. Rev. , 88 , 899 .
25.
Frisch M.J.
(2009 ) Gaussian 09, Revision A.02. Gaussian , Wallingford, CT.
26.
Houk K.N.
(1975 ) Acc. Chem. Res. , 8 , 361 .
27.
Domingo L.R.
,
Aurell M.J.
,
Perez P.
, and
Contrearas R.
(2002 ) J. Phys. Chem. A , 106 , 6871 .
28.
Domingo L.R.
,
Aurell M.
,
Contreras M.
, and
Pérez P.
(2002 ) Tetrahedron. , 58 , 4417 .
29.
Domingo L.R.
,
Aurell M.J.
,
Pérez P.
, and
Contreras R.
(2002 ) J. Phys. Chem. A , 106 , 6871 .
