Abstract:The pyrrolidine and morpholine enamines of cyclic ketones such as cyclohexanone and cyclopentanone were successfully diacetylated at alpha- and alpha'-positions with trichloroacetyl chloride using zinc catalyst. Morpholine enamines of the cyclic ketones gave acetylated morpholine in good yields besides the corresponding diacetylated cyclic enamines. When the same reactions were performed by using triethylamine without using zinc, monoacetylation products of the same enamines were synthesized.
Key indicatorsSingle-crystal X-ray study T = 295 K Mean '(C±C) = 0.004 A Ê R factor = 0.040 wR factor = 0.124 Data-to-parameter ratio = 17.9For details of how these key indicators were automatically derived from the article, see
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