A New Strategy towards Efficient and Recyclable Carbon-Chloride Bond Cleavage of Environmentally Harmful Organochlorides through Electrochemical Catalysis in Non-aqueous Media

2017 ◽  
Vol 2 (2) ◽  
pp. 645-649 ◽  
Author(s):  
Weihua Zhu ◽  
Tingting Huang ◽  
Minzhi Li ◽  
Limin Zheng ◽  
Songsong Bao ◽  
...  
Keyword(s):  
Bond Cleavage ◽  
Aqueous Media ◽  
Electrochemical Catalysis ◽  
New Strategy

scholarly journals Tailorable synthesis of heterogeneous enzyme–copper nanobiohybrids and their application in the selective oxidation of benzene to phenol

2020 ◽  
Vol 10 (1) ◽  
pp. 196-206 ◽  
Author(s):  
Noelia Losada-García ◽  
Alba Rodríguez-Otero ◽  
Jose M. Palomo
Keyword(s):  
Selective Oxidation ◽  
Aqueous Media ◽  
Copper Nanoparticle ◽  
New Strategy ◽  
Oxidation Of Benzene

A new strategy has been developed for the tailor-made synthesis of copper nanoparticle (CuNPs)-enzyme biohybrids in aqueous media for selective benzene monohydroxylation.

ChemInform Abstract: Copper-Catalyzed Aerobic Oxidative Inert C-C and C-N Bond Cleavage: A New Strategy for the Synthesis of Tertiary Amides.

ChemInform ◽  
2015 ◽  
Vol 46 (11) ◽  
pp. no-no
Author(s):  
Xiuling Chen ◽  
Tieqiao Chen ◽  
Qiang Li ◽  
Yongbo Zhou ◽  
Li-Biao Han ◽  
...  
Keyword(s):  
Bond Cleavage ◽  
New Strategy ◽  
Tertiary Amides

scholarly journals High Performance of Simple Organic Phosphorescence Host-Guest Materials

2020 ◽  
Author(s):  
Yunsheng Wang ◽  
Heqi Gao ◽  
Jie Yang ◽  
Manman Fang ◽  
Dan Ding ◽  
...  
Keyword(s):  
High Performance ◽  
High Efficiency ◽  
Aqueous Media ◽  
Theoretical Research ◽  
Long Afterglow ◽  
Afterglow Time ◽  
New Strategy ◽  
Long Lifetime ◽  
First Time ◽  
Design Guidance

<p><b>The study of purely organic room-temperature phosphorescence (RTP) has drawn </b><b>increasing attention </b><b>because of its considerable theoretical research and practical application </b><b>value</b><b>. Currently, organic RTP materials with both high efficiency (<i>Ф</i><sub>P</sub> > 20%) and a long lifetime (<i>τ</i><sub>P</sub> > 10 s) in air are still </b><b>scarce due to</b><b> the lack of related design guidance. Here, we </b><b>report</b><b> a new strategy to increase the phosphorescence performance of organic materials by integrating the RTP host and RTP guest in one doping system to form </b><b>a </b><b>triplet exciplex. With these materials, the high-contrast </b><b>labelling</b><b> of tumours in living mice and encrypted patterns in thermal printing are both successfully realized for the first time</b><b> by</b><b> taking </b><b>advantage of both</b><b> the long afterglow time (up to 25 min in aqueous media) and high phosphorescence efficiency (43%).</b></p>

Copper-Catalyzed Aerobic Oxidative Inert CC and CN Bond Cleavage: A New Strategy for the Synthesis of Tertiary Amides

2014 ◽  
Vol 20 (38) ◽  
pp. 12234-12238 ◽  
Author(s):  
Xiuling Chen ◽  
Tieqiao Chen ◽  
Qiang Li ◽  
Yongbo Zhou ◽  
Li-Biao Han ◽  
...  
Keyword(s):  
Bond Cleavage ◽  
New Strategy ◽  
Tertiary Amides

A New Strategy for the Synthesis of Poly-Substituted 3-H, 3-Fluoro, or 3-Trifluoromethyl Pyridines via the Tandem C−F Bond Cleavage Protocol

2010 ◽  
Vol 12 (19) ◽  
pp. 4376-4379 ◽  
Author(s):  
Zixian Chen ◽  
Jiangtao Zhu ◽  
Haibo Xie ◽  
Shan Li ◽  
Yongming Wu ◽  
...  
Keyword(s):  
Bond Cleavage ◽  
New Strategy

Copper-Catalyzed Cleavage of Unstrained C–C Bonds for the Synthesis of 1-Acyloxy-2,2,6,6-tetramethylpiperidines from Cyclic or Acyclic Ketones

Synlett ◽  
2017 ◽  
Vol 28 (16) ◽  
pp. 2163-2168 ◽  
Author(s):  
Wang Zhou ◽  
Qijian Jiang ◽  
Luo Yang
Keyword(s):  
Bond Cleavage ◽  
New Strategy ◽  
Phenanthroline Monohydrate ◽  
Acyclic Ketones

A copper-catalyzed approach for the synthesis of 1-acyloxy-2,2,6,6-tetramethylpiperidines through the C–C bond cleavage of cyclic or acyclic ketones was developed. In this chemistry, a combination of CuCl2·2H2O, 1,10-phenanthroline monohydrate, and aniline was crucial for the formation of the desired products by the reaction of ketones with TEMPO. This research provides a new strategy for the further transformation of α-aryl cyclic or acyclic ketones.

scholarly journals High Performance of Simple Organic Phosphorescence Host-Guest Materials

2020 ◽  
Author(s):  
Yunsheng Wang ◽  
Heqi Gao ◽  
Jie Yang ◽  
Manman Fang ◽  
Dan Ding ◽  
...  
Keyword(s):  
High Performance ◽  
High Efficiency ◽  
Aqueous Media ◽  
Theoretical Research ◽  
Long Afterglow ◽  
Afterglow Time ◽  
New Strategy ◽  
Long Lifetime ◽  
First Time ◽  
Design Guidance

<p><b>The study of purely organic room-temperature phosphorescence (RTP) has drawn </b><b>increasing attention </b><b>because of its considerable theoretical research and practical application </b><b>value</b><b>. Currently, organic RTP materials with both high efficiency (<i>Ф</i><sub>P</sub> > 20%) and a long lifetime (<i>τ</i><sub>P</sub> > 10 s) in air are still </b><b>scarce due to</b><b> the lack of related design guidance. Here, we </b><b>report</b><b> a new strategy to increase the phosphorescence performance of organic materials by integrating the RTP host and RTP guest in one doping system to form </b><b>a </b><b>triplet exciplex. With these materials, the high-contrast </b><b>labelling</b><b> of tumours in living mice and encrypted patterns in thermal printing are both successfully realized for the first time</b><b> by</b><b> taking </b><b>advantage of both</b><b> the long afterglow time (up to 25 min in aqueous media) and high phosphorescence efficiency (43%).</b></p>

Revised mechanism for the hydrolysis of ethers in aqueous acid

2012 ◽  
Vol 90 (10) ◽  
pp. 811-818 ◽  
Author(s):  
Robin A. Cox
Keyword(s):  
Positive Charge ◽  
Bond Cleavage ◽  
Aqueous Media ◽  
Nucleophilic Attack ◽  
Subsequent Paper ◽  
Reaction Intermediates ◽  
Aqueous Acid ◽  
Acid Catalyzed ◽  
Protonated Species ◽  
Hydrolysis Of

It has been shown recently that many supposed reaction intermediates in aqueous media do not have lifetimes long enough for them to serve this purpose. Among these are oxygen-protonated species where the positive charge is not delocalized, primary and secondary carbocations, and the commonly written species H3O+ and HO–. This means that the mechanisms for many of the organic reactions that take place in aqueous media are in need of revision. This paper concerns the acid hydrolysis of simple ethers, many of which cannot form carbocations stable enough to exist in water. Rather than an A1 process in which an oxygen-protonated species dissociates into an alcohol and a carbocation, which is then quenched by water, or an A2 process in which a water molecule or another nucleophilic species assists in this, the mechanism for most ethers is a general-acid-catalyzed process in which proton transfer to oxygen is concerted with C–O bond cleavage in cases where a stable carbocation can exist, or additionally concerted with nucleophilic attack for those cases in which stable carbocation formation is not possible. All of the cases for which rate constant data could be found in the literature are analyzed and discussed in this paper, with the exception of the hydrolyses of several azoethers, where additional hydrolysis mechanisms are possible. These will be discussed in a subsequent paper.

Highly efficient C Cl bond cleavage and unprecedented C C bond cleavage of environmentally toxic DDT through molecular electrochemical catalysis

2017 ◽  
Vol 545 ◽  
pp. 44-53 ◽  
Author(s):  
Xu Liang ◽  
Tingting Huang ◽  
Minzhi Li ◽  
John Mack ◽  
Martijn Wildervanck ◽  
...  
Keyword(s):  
Bond Cleavage ◽  
Electrochemical Catalysis ◽  
Highly Efficient
Sign in / Sign up

Export Citation Format

Share Document