Ring-Opening Reactions of Methylenecyclopropanes Promoted by Metal Halides
作者:Bo Xu、Min Shi
DOI:10.1021/ol034142k
日期:2003.5.1
The methylenecyclopropanes (MCPs) react with various metal chlorides or bromides to give the corresponding homoallylic chlorides or bromides in good yields. [reaction: see text]
Ring-opening reaction of methylenecyclopropanes with LiCl, LiBr or NaI in acetic acid
作者:Jin-Wen Huang、Min Shi
DOI:10.1016/j.tet.2003.12.061
日期:2004.2
The methylenecyclopropanes 1 react with LiCl, LiBr or NaI at 80 °C to give the corresponding gem-disubstituted homoallylic halides 2 in good to excellent yields in aceticacid. In some cases, the ring-openingreaction can be completed within 5 min to give the corresponding gem-disubstituted homoallylic halides in high yields.