scholarly journals One-Pot Synthesis of Hypervalent Diaryl(iodo)bismuthanes from o-Carbonyl Iodoarenes by Zincation

2019 ◽  
Vol 2019 ◽  
pp. 1-7
Author(s):  
Toshihiro Murafuji ◽  
A. F. M. Hafizur Rahman ◽  
Daiki Magarifuchi ◽  
Masahiro Narita ◽  
Isamu Miyakawa ◽  
...  
Keyword(s):  
Low Temperature ◽  
Temperature Control ◽  
Functional Group ◽  
Zinc Powder ◽  
Protecting Group ◽  
Reaction Conditions ◽  
One Pot ◽  
One Pot Synthesis

Diaryl(iodo)bismuthanes possessing a hypervalent C=O•••Bi–I bond were conveniently synthesized in a one-pot reaction by using arylzinc reagents generated from o-carbonyl iodobenzenes and zinc powder under ultrasonication. This method is superior to the conventional organolithium and Grignard methods because it has a wide functional group tolerance, requires no protecting group manipulations, and proceeds under mild reaction conditions that do not need low temperature control. Furthermore, no intermediate triarylbismuthane precursor for the hypervalent iodobismuthane is necessary.

scholarly journals One-pot synthesis of propynoates and propynenitriles

2017 ◽  
Vol 95 (2) ◽  
pp. 144-148 ◽  
Author(s):  
Fan Shu ◽  
Qingjuan Zheng ◽  
Wanrong Dong ◽  
Zhihong Peng ◽  
Delie An
Keyword(s):  
Low Temperature ◽  
Transition Metal ◽  
Functional Group ◽  
High Efficiency ◽  
Metal Catalysts ◽  
Transition Metal Catalysts ◽  
One Pot ◽  
Efficient Transformation ◽  
One Pot Synthesis ◽  
Substituted Acetylenes

An efficient transformation towards propynoates and propynenitriles is herein described. The practical methodology was conducted at low temperature (–78 or –60 °C) in a one-pot manner with the assistance of base rather than any transition metal catalysts. The base-induced protocol exhibits good functional group tolerance (up to 28 examples) and high efficiency (up to 92% yields) towards substituted acetylenes of great synthetic significance, which was also well demonstrated by the gram-scale reactions.

Iodine-Mediated Multi-Component Reactions: Readily Access to Tetrazoles and Guanidines

2020 ◽  
Vol 17 ◽  
Author(s):  
Bajivali Shaik ◽  
Mohan Seelam ◽  
Ramana Tamminana ◽  
Prasad Rao Kammela
Keyword(s):  
Reaction Time ◽  
Benzoyl Chloride ◽  
Functional Group ◽  
Molecular Iodine ◽  
Environmentally Benign ◽  
Reaction Conditions ◽  
One Pot ◽  
Short Reaction Time ◽  
One Pot Synthesis ◽  
High Yields

Abstract: Environmentally benign syntheses of One-pot sequential reactions of benzoyl chloride with amines followed by the treatment of molecular I2 reagent under basic conditions provide benzoyl tetrazoles and guanidines in moderate to excel-lent yields. This one-pot synthesis has several advantages such as mild reaction conditions, short reaction time, convenient workup, high yields, using cheap and readily available reagent molecular Iodine. In addition, functional group tolerance has been explored

Novel One-pot Synthesis of Pyranocarbazole Derivatives via an Isocyanide-based Three-component Reaction

2020 ◽  
Vol 17 ◽  
Author(s):  
Visarapu Malathi ◽  
Pedavenkatagari Narayana Reddy ◽  
Pannala Padmaja
Keyword(s):  
Efficient Method ◽  
Atom Economy ◽  
Reaction Conditions ◽  
One Pot ◽  
Catalyst Free ◽  
One Pot Synthesis ◽  
Three Component Reaction ◽  
High Yields

Abstract:: An efficient method has been developed for the synthesis of new pyrano[3,2-c] and pyrano[3,2-a]carbazole de-rivatives via a three component reaction of 4-hydroxycarbazole or 2-hydroxycarbazole, isocyanides, and dialkylacetylenedi-carboxylates. Noteworthy features of this protocol include mild reaction conditions, catalyst-free, high atom-economy and high yields.

Thermally stable amine-functionalized silica sorbents using one-pot synthesis method for CO2 capture at low temperature

2020 ◽  
Vol 37 (12) ◽  
pp. 2317-2325
Author(s):  
Seong Bin Jo ◽  
Ho Jin Chae ◽  
Tae Young Kim ◽  
Jeom-In Baek ◽  
Dhanusuraman Ragupathy ◽  
...  
Keyword(s):  
Low Temperature ◽  
Co2 Capture ◽  
Synthesis Method ◽  
Functionalized Silica ◽  
Thermally Stable ◽  
One Pot ◽  
One Pot Synthesis ◽  
Amine Functionalized

Synthesis of pyrazolo[1,5-c]quinazoline derivatives through the copper-catalyzed domino reaction of o-alkenyl aromatic isocyanides with diazo compounds

2020 ◽  
Vol 56 (55) ◽  
pp. 7665-7668 ◽  
Author(s):  
Lu Liu ◽  
Lei Li ◽  
Shukuan Mao ◽  
Xin Wang ◽  
Ming-Dong Zhou ◽  
...  
Keyword(s):  
Diazo Compounds ◽  
Domino Reaction ◽  
Reaction Conditions ◽  
One Pot ◽  
One Pot Synthesis ◽  
Quinazoline Derivatives

Various o-alkenyl aromatic isocyanides were prepared from readily available reactants for their double annulation with diazo compounds for a one-pot synthesis of pyrazolo[1,5-c]quinazolines under mild reaction conditions.

scholarly journals One-Pot Synthesis of Novel Multisubstituted 1-Alkoxyindoles

Molecules ◽  
2021 ◽  
Vol 26 (5) ◽  
pp. 1466
Author(s):  
Ye Eun Kim ◽  
Hyunsung Cho ◽  
Yoo Jin Lim ◽  
Chorong Kim ◽  
Sang Hyup Lee
Keyword(s):  
Alkyl Halide ◽  
The Novel ◽  
Reaction Conditions ◽  
One Pot ◽  
One Pot Synthesis ◽  
Consecutive Reactions ◽  
Intramolecular Condensation ◽  
Synthetic Sequence ◽  
Novel Target

Studies on a one-pot synthesis of novel multisubstituted 1-alkoxyindoles 1 and their mechanistic investigations are presented. The synthesis of 1 was successfully achieved through consecutive four step reactions from substrates 2. The substrates 2, prepared through a two-step synthetic sequence, underwent three consecutive reactions of nitro reduction, intramolecular condensation, and nucleophilic 1,5-addition to provide the intermediates, 1-hydroxyindoles 8, which then were alkylated in situ with alkyl halide to afford the novel target products 1. We optimized the reaction conditions for 1 focusing on the alkylation step, along with the consideration of formation of intermediates 8. The optimized condition was SnCl2·2H2O (3.3 eq) and alcohols (R1OH, 2.0 eq) for 1–2 h at 40 °C and then, base (10 eq) and alkyl halides (R2Y, 2.0 eq) for 1–4 h at 25–50 °C. Notably, all four step reactions were performed in one-pot to give 1 in good to modest yields. Furthermore, the mechanistic aspects were also discussed regarding the reaction pathways and the formation of side products. The significance lies in development of efficient one-pot reactions and in generation of new 1-alkoxyindoles.

One-pot synthesis visible-light-active TiO2 photocatalysts at low temperature by peroxotitanium complex

2018 ◽  
Vol 765 ◽  
pp. 551-559 ◽  
Author(s):  
Yanjie Wang ◽  
Ayyakannu Sundaram Ganeshraja ◽  
Changzi Jin ◽  
Kaixin Zhu ◽  
Junhu Wang
Keyword(s):  
Low Temperature ◽  
Visible Light ◽  
One Pot ◽  
Tio2 Photocatalysts ◽  
One Pot Synthesis ◽  
Visible Light Active

One-pot synthesis of two-dimensional multilayered graphitic carbon nanosheets by low-temperature hydrothermal carbonization using the in situ formed copper as a template and catalyst

2020 ◽  
Vol 56 (78) ◽  
pp. 11645-11648
Author(s):  
Huangqing Ye ◽  
Jiahui Chen ◽  
Yougen Hu ◽  
Gang Li ◽  
Xian-Zhu Fu ◽  
...  
Keyword(s):  
Low Temperature ◽  
Hydrothermal Carbonization ◽  
Graphitic Carbon ◽  
Two Dimensional ◽  
One Pot ◽  
Carbon Nanosheets ◽  
One Pot Synthesis

Two-dimensional (2D) multilayered graphitic carbon nanosheets are prepared via a facile, green, and mild method of one-pot hydrothermal carbonization at a temperature below 300 °C.

One Pot Synthesis and Characterization of Ultra Fine CeO2 and Cu/CeO2 Nanoparticles. Application for Low Temperature CO Oxidation

2011 ◽  
Vol 11 (10) ◽  
pp. 8593-8598 ◽  
Author(s):  
Apostolos Fotopoulos ◽  
Jiannis Arvanitidis ◽  
Dimitris Christofilos ◽  
Konstantinos Papaggelis ◽  
M. Kalyva ◽  
...  
Keyword(s):  
Low Temperature ◽  
Co Oxidation ◽  
Synthesis And Characterization ◽  
One Pot ◽  
One Pot Synthesis ◽  
Low Temperature Co Oxidation
Sign in / Sign up

Export Citation Format

Share Document