Design and Application of 2,2-Dibromodimedone as Organic Brominating Reagent for Asymmetric Bromination of 1,3-Dicarbonyl Compounds and Ketones Catalysed by Chiral Amino Acids
作者:Papori Goswami、Abhilasha Baruah、Babulal Das
DOI:10.1002/adsc.200900138
日期:2009.7
A green and ecofriendly enantioselective α‐bromination of carbonyl and 1,3‐dicarbonyl compounds is reported involving the synthesis of a novel organic brominating source. The organic brominating reagent can be recovered after each cycle, rebrominated and reused. The reaction is catalysed by chiral amino acids and completed within a short reaction time with good enantioselectivity and exclusive formation
据报道,绿色和环保的羰基和1,3-二羰基化合物的对映选择性α-溴化涉及一种新型有机溴化源的合成。有机溴化试剂可在每个循环后回收,再溴化并重复使用。该反应由手性氨基酸催化,并在很短的反应时间内完成,具有良好的对映选择性,并且仅形成α-单溴化羰基化合物。