Springer Online Journal Archives 1860-2000
Chemistry and Pharmacology
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Summary Treatment of 2,3-dimethyl-2,3-diphenylbutanediol-1,4-ditosylate with tetra-n-butylammonium bromide in dimethyl-acetamide did not give the expected 2,3-dimethyl-2,3-diphenyl-1,4-dibromobutane but, rather, by a double phenonium ion rearrangement, 1,4-diphenyl-2,3-dimethylbutadiene-1,3. 2,3-Dimethyl-2, 3-diphenyl-1,4-dibromobutane was required as starting material for the synthesis of head to head poly(α-methyl-styrene) by Grignard coupling.
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