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[摘要]：Ketones undergo soft enolization and acylation on treatment with MgBr2.OEt2, (Me2CH)2NEt, and various acylating agents to give 1,3-diketones. The process is particularly efficient for N-acylbenzotriazoles and O-pentafluorophenyl esters, and, in these cases, is conducted using untreated, reagent grade CH2Cl2 open to the air, thus providing an exceptionally simple approach to the synthesis of this important class of compds. |
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