An ionic liquid as reaction medium for the synthesis of halo-containing β-enaminones at room temperature
作者:Marcos A. P. Martins、Emerson A. Guarda、Clarissa P. Frizzo、Mara R. B. Marzari、Dayse N. Moreira、Nilo Zanatta、Helio G. Bonacorso
DOI:10.1007/s00706-008-0923-3
日期:2008.11
, Et , Bu , allyl, tert -amyl, CH2CH2OH, Bn , Ph ] were synthesized using the ionic liquid [bmim]BF4 at room temperature. It is demonstrated that this ionic liquid is a reaction medium suitable for the amination of β-alkoxyvinyl halomethyl ketones. The advantages of this method are the absence of solvents, short reaction times, and good yields.
一系列二十个卤代甲基化的β-烯酮[ R C(O)CH = C( R 1)N R 3 R 4,其中 R = CF 3,CCl 3,CHCl 2; R 1= H, Me , Ph ; R 3 = H, Me , Bu , Et ; R 4 = Me , Et , Bu ,烯丙基, 叔 戊基,CH 2在室温下使用离子液体[bmim] BF 4合成CH 2 OH, Bn 和 Ph ] 。已经证明该离子液体是适合于β-烷氧基乙烯基卤代甲基酮的胺化的反应介质。该方法的优点是无溶剂,反应时间短,产率高。