1 to 6 above. This was accomplished in the following manner. The crotyl alcohol or methylvinylcarbinol called for in methods 1 to 6 was replaced by the same number of moles of water and of the pure bromides or known mixtures of them. Each method of synthesis was then carried out exactly as described and the bromide was washed, dried and distilled. The corrected refractive index of the product was then compared with the refrac- tive index of the bromide at the start of ...
