One-pot solvothermal synthesized CoS2@MoS2 nanocomposites for selective reduction coupling reaction to synthesize imines
作者:Wenpeng Han、Junwei Wang、Xuekuan Li、Ligong Zhou、Ying Yang、Mingxing Tang、Hui Ge
DOI:10.1016/j.catcom.2019.03.007
日期:2019.5
Selective reduction coupling of nitroaromatics and aldehydes for imines synthesis has been investigated by using a series of bifunctional CoS2@MoS2 catalysts prepared by one-pot solvothermal method. Under optimal Co/Mo ratio of 0.75 and preparation temperature (180 °C), CoS2@MoS2–180-0.75 catalyst shows 96.5% nitrobenzene conversion, 93.0% imine selectivity and good versatility for substituted nitrobenzene
Reductive amination with zinc powder in aqueous media
作者:Giovanni B Giovenzana、Daniela Imperio、Andrea Penoni、Giovanni Palmisano
DOI:10.3762/bjoc.7.125
日期:——
Zincpowder in aqueous alkaline media was employed to perform reductive amination of aldehydes with primary amines. The corresponding secondary amines were obtained in good yields along with minor amounts of hydrodimerization byproducts. The protocol is a green alternative to the use of complex hydrides in chlorinated or highly flammable solvents.