The direct catalytic amination of C(sp )–H is difﬁcult to achieve but signiﬁcant. The compound of Fe Cr O , prepared 2.35 0.65 4 by the oxidation–precipitation method, was characterized by X-ray diffraction, scanning electron microscopy, Brunauer– Emmett–Teller, X-ray photoelectron spectroscopy, and inductively coupled plasma spectrometry, and used to catalyze the decomposition of hydrogen peroxide to hydroxyl-free radical, which sequentially reacted with ammonia and toluene to produce benzylamine. Results showed that Fe Cr O with high Cr content, particularly the outside surface, could well 2.35 0.65 4 better catalyze hydrogen peroxide to hydroxyl-free radical and its transformation. Under the conditions of pH\ 6, 30 C, and the NH amount, maintaining the match of one hydroxyl-free radical one by the process control, toluene in the other phase of the reaction system was converted into benzylamine with 30% yield. The catalytic radical amination of C(sp )–H in toluene was achieved without any oriented group. Graphical abstract FeSO + CrCl 4 3 Oxidation-precipitation Cr-Fe O 3 4 NH NH + H O 3 2 2 Keywords C(sp )–H activation Radicals Cr-doped magnetite Catalytic amination Metals Heterogeneous catalysis Introduction bonds, which broadens the synthetic approach to organic synthesis.
Monatshefte für Chemie - Chemical Monthly – Springer Journals
Published: Feb 13, 2018
It’s your single place to instantly
discover and read the research
that matters to you.
Enjoy affordable access to
over 18 million articles from more than
15,000 peer-reviewed journals.
All for just $49/month
Query the DeepDyve database, plus search all of PubMed and Google Scholar seamlessly
Save any article or search result from DeepDyve, PubMed, and Google Scholar... all in one place.
Get unlimited, online access to over 18 million full-text articles from more than 15,000 scientific journals.
Read from thousands of the leading scholarly journals from SpringerNature, Wiley-Blackwell, Oxford University Press and more.
All the latest content is available, no embargo periods.
“Hi guys, I cannot tell you how much I love this resource. Incredible. I really believe you've hit the nail on the head with this site in regards to solving the research-purchase issue.”Daniel C.
“Whoa! It’s like Spotify but for academic articles.”@Phil_Robichaud
“I must say, @deepdyve is a fabulous solution to the independent researcher's problem of #access to #information.”@deepthiw
“My last article couldn't be possible without the platform @deepdyve that makes journal papers cheaper.”@JoseServera