... Rev. 1972, 73, 113. (b) Billups, W. E. Acc. Chem. Res. 1978, 11, 245. 0 1983 American Chemical Society Page 2. Chemistry of 8-Substituted Naphthylmethylenes ... J. Am. Chem. SOC., Vol. 105, No. 19, 1983 6097 22a, Y = C1, Z = C1 b, Y =H, Z = H c, Y = Br, Z = H ...