Studies of the elimination of 1,2-diaryl-4-dimethylaminobutan-2-ols—II : The elimination of 1,2-diphenyl-4-dimethylaminobutan-2-ol and related compounds☆

Add time:08/16/2019    Source:sciencedirect.com

The acid-catalysed dehydration of 1,2-diphenyl-4-dimethylaminobutan-2-ol is shown to yield all four possible elimination products. Pure samples of cis and trans 4-dimethylamino-1,2-diphenylbut-1-ene and the corresponding trans (H/Ph) but-2-ene have been isolated and their configurations assigned by PMR and UV spectroscopy. Similar butene mixtures resulted when the related 1-p-tolyl- and 1-(2-pyridyl)-2-phenylbutanols were dehydrated.

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