An efficient synthesis of d-mannoheptulose via oxidation of an olefinated sugar with potassium permanganate in aqueous acetone
作者:Jie Cheng、Zhijie Fang、Song Li、Baohui Zheng、Yuhua Jiang
DOI:10.1016/j.carres.2009.06.020
日期:2009.10
sugar was prepared from 2,3,4,5,6-penta-O-benzyl-d-mannose via a Wittig reaction. Second, the key step, a 2-hydroxyoxirane product was unexpectedly obtained by oxidation of the olefinated sugar with potassium permanganate in aqueous acetone. Finally d-mannoheptulose was synthesized through debenzylation and hydrolysis in an overall yield of 39%.
由2,3,4,5,6-戊五-O-苄基-d-甘露糖成功地完成了有效的三步合成d-甘露庚糖。首先,通过Wittig反应由2,3,4,5,6-戊-O-苄基-d-甘露糖制备烯化糖。第二,关键步骤是通过在丙酮水溶液中用高锰酸钾氧化烯化糖,出乎意料地获得了2-羟基环氧乙烷产物。最后,通过脱苄基化和水解合成d-甘露庚酮糖,总产率为39%。