scholarly journals Robust Buchwald–Hartwig amination enabled by ball-milling

2019 ◽  
Vol 17 (7) ◽  
pp. 1722-1726 ◽  
Author(s):  
Qun Cao ◽  
William I. Nicholson ◽  
Andrew C. Jones ◽  
Duncan L. Browne
Keyword(s):  
Ball Milling ◽  
Catalyst System ◽  
Secondary Amines ◽  
Mechanochemical Method ◽  
System P

An operationally simple mechanochemical method for the Pd catalysed Buchwald–Hartwig amination of arylhalides with secondary amines has been developed using a Pd PEPPSI catalyst system.

Effect of pressure on synthetic diamond crystals at high temperatures and pressures in Fe/Ni catalyst system

CrystEngComm ◽  
2021 ◽  
Author(s):  
Shuai Fang ◽  
Yongkui Wang ◽  
Liangchao Chen ◽  
Zhiyun Lu ◽  
Zhenghao Cai ◽  
...  
Keyword(s):  
Nitrogen Content ◽  
Growth Mechanism ◽  
Synthetic Diamond ◽  
Natural Diamond ◽  
Catalyst System ◽  
Necessary Condition ◽  
Ni Catalyst ◽  
Effect Of Pressure ◽  
Diamond Crystals ◽  
System P

Pressure is a necessary condition for the growth of natural diamond. Studying the effect of pressure on the nitrogen content of diamond is important for exploring the growth mechanism of...

One-pot synthesis of 3-aminofurans using a simple and efficient recyclable CuI/[bmim]PF6 system

2021 ◽  
Author(s):  
Guguloth Veeranna ◽  
Ramesh Balaboina ◽  
Narasimha Swamy Thirukovela ◽  
Ravindhar Vadde
Keyword(s):  
Secondary Amines ◽  
Terminal Alkynes ◽  
One Pot ◽  
One Pot Synthesis ◽  
System P ◽  
Three Component Reaction ◽  
The One

The one-pot three-component reaction of several 2-ketoaldehdyes, secondary amines and terminal alkynes to access 3-aminofurans was proceeded well in [bmim][PF6] using a simple and cheap CuI catalyst. The resulted 3-aminofuran...

Construction of polyphosphoesters with the main chain of rigid backbones and stereostructures via organocatalyzed ring-opening polymerization

2020 ◽  
Vol 11 (20) ◽  
pp. 3475-3480
Author(s):  
Yu-Jia Zheng ◽  
Guan-Wen Yang ◽  
Bo Li ◽  
Guang-Peng Wu
Keyword(s):  
Ring Opening ◽  
Main Chain ◽  
Catalyst System ◽  
Ring Opening Polymerization ◽  
System P ◽  
Organic Catalyst

A highly stereoregular polyphosphoester with a rigid cyclohexylene structure in the main chain was constructed via ring-opening polymerization (ROP) in the presence of an organic catalyst system.

Highly trans-1,4-stereoselective coordination chain transfer polymerization of 1,3-butadiene and copolymerization with cyclic esters by a neodymium-based catalyst system

2015 ◽  
Vol 6 (33) ◽  
pp. 6088-6095 ◽  
Author(s):  
Wenjie Zheng ◽  
Nan Yan ◽  
Yutian Zhu ◽  
Wenpeng Zhao ◽  
Chunyu Zhang ◽  
...  
Keyword(s):  
Chain Transfer ◽  
Catalyst System ◽  
Amphiphilic Copolymers ◽  
Cyclic Esters ◽  
System P ◽  
Chain Transfer Polymerization

Highly trans-1,4-stereoregular polybutadiene (TPB) was obtained by CCTP and novel amphiphilic copolymers (TPB-b-PCL/PLA) were successfully synthesized.

scholarly journals Site-selective redox isomerizations of furanosides using a combined arylboronic acid/photoredox catalyst system

2020 ◽  
Vol 11 (6) ◽  
pp. 1531-1537 ◽  
Author(s):  
Victoria Dimakos ◽  
Daniel Gorelik ◽  
Hsin Y. Su ◽  
Graham E. Garrett ◽  
Gregory Hughes ◽  
...  
Keyword(s):  
Hydrogen Atom ◽  
Ribonucleotide Reductase ◽  
Boronic Acid ◽  
Catalyst System ◽  
Hydrogen Atom Transfer ◽  
Synthetic Analog ◽  
Arylboronic Acid ◽  
System P ◽  
Combined Action ◽  
Site Selective

The combined action of boronic acid, photoredox catalyst and hydrogen atom transfer mediator enables the transformation of furanosides to 2-keto-3-deoxyfuranosides, a synthetic analog of the process catalyzed by the ribonucleotide reductase enzymes.

Co-localization of catalysts within a protein cage leads to efficient photochemical NADH and/or hydrogen production

2016 ◽  
Vol 4 (32) ◽  
pp. 5375-5384 ◽  
Author(s):  
Ethan Edwards ◽  
Rajarshi Roychoudhury ◽  
Benjamin Schwarz ◽  
Paul Jordan ◽  
John Lisher ◽  
...  
Keyword(s):  
Hydrogen Production ◽  
Catalyst System ◽  
Protein Cage ◽  
System P

P22 VLP used as a constrained reaction environment for photochemical NADH and hydrogen production, by co-localizing a two-catalyst system.

Insights into the dehydrogenation reaction process of a K-containing Mg(NH2)2–2LiH system

2015 ◽  
Vol 44 (41) ◽  
pp. 18012-18018 ◽  
Author(s):  
Yongfeng Liu ◽  
Yaxiong Yang ◽  
Xin Zhang ◽  
You Li ◽  
Mingxia Gao ◽  
...  
Keyword(s):  
Ball Milling ◽  
Reaction Process ◽  
Dehydrogenation Reaction ◽  
System P

KH and Li2K(NH2)3, formed in situ during ball milling, participate as reactants in the dehydrogenation reaction of the Mg(NH2)2–2LiH system.

Selective monoalkylation of amines with light electrophiles using a flow microreactor system

2015 ◽  
Vol 2 (4) ◽  
pp. 324-327 ◽  
Author(s):  
Thomas Lebleu ◽  
Jacques Maddaluno ◽  
Julien Legros
Keyword(s):  
Reaction Times ◽  
Secondary Amines ◽  
System P ◽  
Flow Microreactor ◽  
Primary And Secondary Amines

The challenging direct monoalkylation of primary and secondary amines with small triflates (C1 to C3) was accomplished in a flow microreactor by virtue of efficient mixing and short reaction times.

Preparation of nickel-bound porous carbon and its application in supercapacitors

2022 ◽  
Author(s):  
Liangyu Liu ◽  
Yixin Li ◽  
Ya'nan Meng ◽  
Ying Xue ◽  
Bin Yang ◽  
...  
Keyword(s):  
Ball Milling ◽  
Porous Carbon ◽  
Solvent Free ◽  
Mechanochemical Method ◽  
Nitrogen Doped ◽  
Milling Method

In this study, nickel-bound porous carbon (Ni-PC) was prepared by introducing Ni2+ into dipotassium ethylenediaminetetraacetate (EDTA-2K) derived nitrogen-doped porous carbon (PC) using the ball milling method. This solvent-free mechanochemical method...

Ambient chemical fixation of CO2 using a highly efficient heterometallic helicate catalyst system

2018 ◽  
Vol 54 (18) ◽  
pp. 2212-2215 ◽  
Author(s):  
Li Wang ◽  
Cong Xu ◽  
Qingxin Han ◽  
Xiaoliang Tang ◽  
Panpan Zhou ◽  
...  
Keyword(s):  
Catalyst System ◽  
Chemical Fixation ◽  
Highly Efficient ◽  
System P

Two novel heptanuclear 3d–4f helicates have been synthesized and characterized.

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