A simple method is described for the preparation of 2,2-dichloro-1,1-bis(4-dialkylaminophenyl)ethylenes from dialkyl anilines by Friedel-Crafts reaction using AlCl3 as Lewis acid and dichloroacetyl chloride as acylating agent.
References
1.
OlahG.A., in Friedel-Crafts and Related Reactions, Interscience, New York, 1963-1965, vols 1-4.
2.
OlahG.A., Ed., Friedel-Crafts Chemistry, Wiley, New York, 1973.
3.
MahatoS.B., MandalN. B., PalA. K., and MoitraS. K., J. Org. Chem., 1984, 49, 718.
4.
MahatoS.B., MandalN. B., PalA. K., and MoitraS. K., Tetrahedron, 1987, 43, 4439.
5.
MahatoS.B., MandalN. B., PalA. K., MoitraS. K., LehmannC., and LugerP., J. Org. Chem., 1988, 53, 5554.
6.
RobertsR.M., El-KhawagaA. M., and RoengsumranS. J., J. Org. Chem., 1984, 49, 3180.
7.
El-KhawagaA.M., and RobertsR. M., J. Org. Chem., 1984, 49, 3832.
