Carbon-branched carbohydrate chirons: synthesis of C-3 and C-4-branched sugar lactones derived from d-erythronolactone
作者:Sarah F. Jenkinson、K. Victoria Booth、Amalia M. Estévez Reino、Graeme Horne、Ramón J. Estévez、George W.J. Fleet
DOI:10.1016/j.tetasy.2009.08.029
日期:2009.10
Two carbon chain extensions using a Wittig reaction on both a 1-deoxy ribulose derivative and a C-2-branched erythrose derivative are reported. Subsequent dihydroxylation resulted in the synthesis of C-3 and C-4 methyl-branched sugar lactones, the useful synthetic building blocks. Control of the stereoselectivity of both the Wittig reaction and the dihydroxylation is investigated, and 3-C-methyl and
报道了使用Wittig反应在1-脱氧核糖衍生物和C-2-支化赤藓糖衍生物上的两个碳链延伸。随后的二羟基化作用导致合成了C-3和C-4甲基支链糖内酯,它们是有用的合成构件。研究了Wittig反应和二羟基化反应的立体选择性的控制,并研究了3- C-甲基和4- C-甲基d-altrono-1,4-内酯和d-glucono-1,4-内酯和4- C合成了-羟甲基-d-altrono-1,4-内酯。