Allylic gallium reagents, prepared from gallium trichloride and the corresponding allylic Grignard reagents, allylated carbonyl compounds in good yields in an aqueous medium as well as in organic solvent.
Selective allylation of carbonyl compounds in aqueous media
作者:Cathy Einhorn、Jean-Louis Luche
DOI:10.1016/0022-328x(87)85005-2
日期:1987.3
The use of aqueous neutral media leads to excellent yields of homoallylic alcohols from reaction sof allyl halides with carbonyl compounds in the presence of tin or zinc. The stereochemicalcourse and range of application of this reaction have been investigated.
Zinc-Mediated Efficient and Selective Reduction of Carbonyl Compounds
作者:Tirtha Mandal、Snehasish Jana、Jyotirmayee Dash
DOI:10.1002/ejoc.201700887
日期:2017.9.8
Simple yet unknown! Aldehydes and ketones can be easily reduced to the corresponding alcohols with Zn/NH4Cl, which is used for pinacol coupling reactions. Chemoselective reduction of aldehydes in the presence of ketones is achieved. Isatins can be efficiently reduced at the C3 position.
A Grignard-Type Addition of Allyl Unit to Aldehydes by Using Bismuth and Bismuth Salt
作者:Makoto Wada、Hidenori Ohki、Kin-ya Akiba
DOI:10.1246/bcsj.63.1738
日期:1990.6
In the presence of metallic bismuth, bismuth(III) chloride–metallic zinc, or bismuth(III) chloride–metallic iron, allylic halides have been found to react with aldehydes under mild conditions to give the corresponding homoallylic alcohols in high yields with high chemo-, regio-, and stereoselectivity. Allylic halides have been also found to react with aldehydes at room temperature in tetrahydrofuran–water
Carbon—carbon bond formation with bismuth salt. A chemoselective Grignard-type addition of allyl unit to aldehydes
作者:Makoto Wada、Hidenori Ohki、Kin-ya Akiba
DOI:10.1016/s0040-4039(00)85061-3
日期:1986.1
In the presence of bismuth(III) chloride—metallic zinc or bismuth(III) chloride—metallic iron, allylic halides were found to react with aldehydes under mild conditions to give the corresponding homoallylic alcohols in high yields with high chemoselectivity.