A chemoselective α-aminoxylation of aryl ketones: a cross dehydrogenative coupling reaction catalysed by Bu4NI

2015 ◽  
Vol 13 (48) ◽  
pp. 11651-11656 ◽  
Author(s):  
Yogesh Siddaraju ◽  
Kandikere Ramaiah Prabhu
Keyword(s):  
Coupling Reaction ◽  
Ammonium Iodide ◽  
Tetrabutyl Ammonium Iodide ◽  
Dehydrogenative Coupling ◽  
Tetrabutyl Ammonium ◽  
Aryl Ketones

Tetrabutyl ammonium iodide (TBAI) catalyzed α-aminoxylation of ketones using aq. TBHP as an oxidant has been accomplished.

scholarly journals Synthesis of N-alkoxyphthalimide derivatives via PIDA-promoted cross dehydrogenative coupling reaction

RSC Advances ◽  
2021 ◽  
Vol 11 (14) ◽  
pp. 8051-8054
Author(s):  
Rongxiang Chen ◽  
Bing Liu ◽  
Wenbo Li ◽  
Kai-Kai Wang ◽  
Changqing Miao ◽  
...  
Keyword(s):  
Coupling Reaction ◽  
Dehydrogenative Coupling ◽  
Aryl Ketones ◽  
High Yields

A cross dehydrogenative coupling reaction of aryl ketones with N-hydroxyphthalimide was realized. The reactions afforded a clean and facile access to diverse N-alkoxyphthalimide derivatives in high yields (up to 99%).

An Environment Friendly Preparation of 3-Bromocamphor and Camphorquinone

2012 ◽  
Vol 36 (3) ◽  
pp. 141-143 ◽  
Author(s):  
Jayaraman Kannappan ◽  
Ashutosh V. Bedekar
Keyword(s):  
Sodium Carbonate ◽  
Ammonium Iodide ◽  
Environment Friendly ◽  
Tetrabutyl Ammonium Iodide ◽  
Tetrabutyl Ammonium

The bromination of camphor has been carried out on a multi-gram scale by a mixture of KBr and KBrO3 in the presence of acid or with HBr/NaBr - H+ and H2O2/oxone® as the oxidant. The 3-bromocamphor is then efficiently converted to camphorquinone by an improved oxidation protocol using DMSO and sodium carbonate of tetrabutyl ammonium iodide.

Investigation of photovoltaic properties of nanostructure indoline dye-sensitised solar cells using changes in assembling materials

2017 ◽  
Vol 46 (5) ◽  
pp. 393-398 ◽  
Author(s):  
Mozhgan Hosseinnezhad ◽  
Kamaladin Gharanjig
Keyword(s):  
Solar Cells ◽  
Organic Dyes ◽  
Low Cost ◽  
Photovoltaic Performance ◽  
Ammonium Iodide ◽  
Photovoltaic Properties ◽  
Content Type ◽  
Tetrabutyl Ammonium Iodide ◽  
Tetrabutyl Ammonium ◽  
First Time

Purpose The purpose of this paper is to study assembling parameters in dye-sensitised solar cells (DSSCs) performance. For this end, 3a,7a-dihydroxy-5ß-cholanic acid (cheno) are selected as anti-aggregation agent and two solutions, namely, tetrabutyl ammonium iodide and (PMII)IL used as electrolyte. Design/methodology/approach A series of organic dyes were selected using N-substituents carbazole as electron donor group and acrylic acid and cyanoacrylic acid as electron acceptor groups. Absorption properties of purified dyes were studied in solution and on photoelectrode substrate. DSSCs were prepared in the presence of anti-aggregation agent and different electrolyte to determine the photovoltaic performance of each dyes. Findings The results showed that all organic dyes form J-aggregation on the photoanode substrate in the absence of anti-aggregation agent and the amounts of aggregation were reduced in the presence of anti-aggregation agent. DSSCs were fabricated in the presence of anti-aggregation agent. The photovoltaic properties were improved using tetrabutyl ammonium iodide as electrolyte. The maximum power conversion efficiency was achieved for D12 in the presence of cheno and tetrabutyl ammonium iodide as anti-aggregation agent and electrolyte, respectively. Social implications Organic dye attracts more and more attention due to low cost, facile route synthesis and less hazardous. Originality/value The effect of anti-aggregation agent and electrolyte on DSSCs performance was investigated for the first time.

Hydroxymethylation of quinolines via iron promoted oxidative C–H functionalization: synthesis of arsindoline-A and its derivatives

2021 ◽  
Author(s):  
Bangarigalla Shantharjun ◽  
Damera Vani ◽  
Ramanjaneyulu Unnava ◽  
Mummadi Sandeep ◽  
Kallu Rajender Reddy
Keyword(s):  
Coupling Reaction ◽  
Dehydrogenative Coupling

Herein, we report a mild and efficient hydroxymethylation of quinolines via an iron promoted cross-dehydrogenative coupling reaction under external acid free conditions.

Topology Selectivity in On-Surface Dehydrogenative Coupling Reaction: Dendritic Structure versus Porous Graphene Nanoribbon

ACS Nano ◽  
2021 ◽  
Vol 15 (3) ◽  
pp. 4617-4626
Author(s):  
Jianmin Huang ◽  
Yu Pan ◽  
Tao Wang ◽  
Shengsheng Cui ◽  
Lin Feng ◽  
...  
Keyword(s):  
Dendritic Structure ◽  
Coupling Reaction ◽  
Graphene Nanoribbon ◽  
Porous Graphene ◽  
Dehydrogenative Coupling ◽  
Structure Versus

scholarly journals Eosin Y dye-based porous organic polymers for highly efficient heterogeneous photocatalytic dehydrogenative coupling reaction

RSC Advances ◽  
2017 ◽  
Vol 7 (1) ◽  
pp. 408-414 ◽  
Author(s):  
Chang-An Wang ◽  
Yan-Wei Li ◽  
Xue-Li Cheng ◽  
Jian-Ping Zhang ◽  
Yin-Feng Han
Keyword(s):  
Coupling Reaction ◽  
Eosin Y ◽  
Organic Polymers ◽  
Porous Organic Polymers ◽  
Bottom Up ◽  
Highly Efficient ◽  
Dehydrogenative Coupling ◽  
Highly Effective

Eosin Y dye has been successfully embedded into a nanoporous network EY-POPs through a bottom-up strategy. The polymers could be used as highly effective and reusable heterogeneous organo-photocatalyst for the dehydrogenative coupling reaction.

Visible-Light-Promoted Direct Amination of Phenols via Oxidative Cross-Dehydrogenative Coupling Reaction

2016 ◽  
Vol 18 (14) ◽  
pp. 3326-3329 ◽  
Author(s):  
Yating Zhao ◽  
Binbin Huang ◽  
Chao Yang ◽  
Wujiong Xia
Keyword(s):  
Visible Light ◽  
Coupling Reaction ◽  
Direct Amination ◽  
Dehydrogenative Coupling
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