作者:G.Pagani Zecchini、M.Paglialunga Paradisi、I. Torrini
DOI:10.1016/s0040-4020(01)91981-7
日期:1983.1
Selective methylenation with Ph3PCH2 and methylation with MeMgI or MeLi of keto group of ketoaldehydes was accomplished by protection of aldehyde with t-butylamine. The intermediate aldimines were cleaved during chromatographic purifications on silica to afford the corresponding methylene aldehydes and methylhydroxy aldehydes as the only isolable reaction products.
选择性亚甲基化的Ph 3 PCH 2和甲基化与MeMgI或酮基酮醛的的MeLi通过用叔丁胺保护醛的完成。在二氧化硅上的色谱纯化过程中,将中间体醛亚胺裂解,得到相应的亚甲基醛和甲基羟基醛,这是唯一可分离的反应产物。