作者:W. Lehnert
DOI:10.1016/0040-4020(73)85007-0
日期:1973.1
In the presence of titanium tetrachloride and pyridine in THF, diethyl malonate undergoes condensation with aliphatic and aromatic ketones. The yields of the resulting α,β-unsaturated compounds are good even in cases, where other condensation methods are unsuccessful. Products, resulting from α-mono-, α,α-, α,α′-di- and α,α,α-trihalogeno ketones are probably of special interest as useful intermediates
在THF中存在四氯化钛和吡啶的情况下,丙二酸二乙酯与脂肪族和芳香族酮缩合。即使在其他缩合方法不成功的情况下,所得的α,β-不饱和化合物的收率也良好。由α-单-,α,α-,α,α'-二-和α,α,α-三卤代酮制得的产物可能作为制备杂环的有用中间体特别受关注。