Deoxygenation of tertiary amine N-oxides under metal free condition using phenylboronic acid
作者:Surabhi Gupta、Popuri Sureshbabu、Adesh Kumar Singh、Shahulhameed Sabiah、Jeyakumar Kandasamy
DOI:10.1016/j.tetlet.2017.01.051
日期:2017.3
A simple and efficient method for the deoxygenation of amine N-oxides to corresponding amines is reported using the green and economical reagent phenylboronic acid. Deoxygenation of N,N-dialkylaniline N-oxides, trialkylamine N-oxides and pyridine N-oxides were achieved in good to excellent yields. The reduction susceptible functional groups such as ketone, amide, ester and nitro groups are well tolerated
据报道,使用绿色且经济的试剂苯基硼酸将胺N-氧化物脱氧为相应的胺是一种简单有效的方法。的脱氧Ñ,Ñ -dialkylaniline Ñ -oxides,三烷基胺Ñ -oxides和吡啶Ñ -oxides良好分别实现到优异的产率。在脱氧过程中,即使在高温下,对还原敏感的官能团(如酮,酰胺,酯和硝基)也能很好地被苯基硼酸所耐受。此外,为了鉴定和定量的间接方法叔胺Ñ-UV-Vis光谱法证明了氧化钙,这可能对药物代谢研究有用。