JULY
19%)
I'OLTMERS CONTAINING PYRIDINE UNITS
7.95(w), 8.97(m), Y.l6(m), 9.28(s), 9.54(s), 9.67(s), 10.68(m), 10,95(w), 11.28(m), 12.86-12.98(s), 13.25(s), and 14.2014.33(s)p. Anal. Calcd. for CloH&lz: C, 59.72; HI 5.01. Found: C, 59.85: H. 5.28. The reaction of a-methylstyrene, bromofonn, and potassium t-butoxide. (8,8-lhbronw-l-mthyZcyclopropyl)benzene ( IId). a-Methylstyrene (177 g., 1.50 moles) was reacted with 63.2 g. (0.250 mole) of bromoform and potassium t-butoxide, from 10.0 g. (0.256 g. atom) of potassium, in the manner described for the reaction of a-methylstyrenc and chloroform. The reaction product, (2,2-dibromo-l-mcthylryclopropy1)benzenc (IId) (58.9 g., 81%) was obtained as a colorless liquid, b.p 94-100' (2 mm.), n y 1.5831-1.5848. -1 refractionation of the product through a 15-cm. Vigrcux column yirlded a middle fraction boiling a t 91-92' (1 mm.), n y 1.5842. The product solidified upon cooling, m.p. 35.536'. The infrared spectrum exhibits absorption maxima a t 3.28(m), 3.31(m), 3.38(s), :
