Acid-Catalyzed Intramolecular Imination / Nucleophilic Trapping of 4-Aminobutanal Derivatives: One-Pot Access to 2-(Pyrazolyl)pyrrolidines

2019 ◽  
Vol 2019 (33) ◽  
pp. 5709-5719 ◽  
Author(s):  
Andrey V. Smolobochkin ◽  
Tanzilya S. Rizbayeva ◽  
Almir S. Gazizov ◽  
Julia K. Voronina ◽  
Alexey B. Dobrynin ◽  
...  
Keyword(s):  
One Pot ◽  
Acid Catalyzed ◽  
Nucleophilic Trapping

Ascorbic acid-Catalyzed One-Pot Three-Component Biginelli Reaction: A Practical and Green Approach towards Synthesis of 3,4-dihydropyrimidin- 2(1H)-ones/thiones

2013 ◽  
Vol 10 (7) ◽  
pp. 463-467 ◽  
Author(s):  
Imene Sehout ◽  
Raouf Boulcina ◽  
Boudjemaa Boumoud ◽  
Fabienne Berree ◽  
Bertrand Carboni ◽  
...  
Keyword(s):  
Ascorbic Acid ◽  
Biginelli Reaction ◽  
One Pot ◽  
Green Approach ◽  
Acid Catalyzed

Sulfamic Acid-catalyzed One-pot Multicomponent Synthesis of 5-phenyl-2- thioxo-1,2,3,5-tetrahydro-4H-pyrimido[4,5-d][1,3]thiazolo[3,2-a]pyrimidin- 4-ones

2017 ◽  
Vol 3 (3) ◽  
pp. 227-234 ◽  
Author(s):  
Sunetra Jadhav ◽  
Ajinkya Patravale ◽  
Reshma Patil ◽  
Digambar Kumbhar ◽  
Vishram Karande ◽  
...  
Keyword(s):  
Sulfamic Acid ◽  
Multicomponent Synthesis ◽  
One Pot ◽  
Acid Catalyzed

ChemInform Abstract: Polymer-Supported Sulfonic Acid Catalyzed Three-Component One-Pot Synthesis of α-Amidoalkyl-β-naphthols.

ChemInform ◽  
2009 ◽  
Vol 40 (11) ◽  
Author(s):  
Li-Tao An ◽  
Xiao-Hua Lu ◽  
Fei-Qing Ding ◽  
Wen-Qing Jiang ◽  
Jian-Ping Zou
Keyword(s):  
Sulfonic Acid ◽  
One Pot ◽  
One Pot Synthesis ◽  
Acid Catalyzed ◽  
Polymer Supported

A heavy metal- and oxidant-free, one-pot synthesis of pyridines and fused pyridines based on a Lewis acid-catalyzed multicomponent reaction

2014 ◽  
Vol 50 (82) ◽  
pp. 12270-12272 ◽  
Author(s):  
V. P. Alex Raja ◽  
Giammarco Tenti ◽  
Subbu Perumal ◽  
J. Carlos Menéndez
Keyword(s):  
Heavy Metal ◽  
Lewis Acid ◽  
Multicomponent Reaction ◽  
One Pot ◽  
One Pot Synthesis ◽  
Acid Catalyzed

Pyridines and fused pyridines are accessible by a combination of a Lewis acid-catalyzed multicomponent reaction and aromatization involving loss of a 2-furylmethyl chain.

scholarly journals Brønsted acid-catalyzed metal-free one-pot synthesis of benzimidazoles via [4+1] heteroannulation of ortho-phenylenediamines with β-oxodithioesters

ARKIVOC ◽  
2017 ◽  
Vol 2018 (2) ◽  
pp. 81-89
Author(s):  
Abhijeet Srivastava ◽  
Gaurav Shukla ◽  
Dhananjay Yadav ◽  
Maya Shankar Singh
Keyword(s):  
Bronsted Acid ◽  
Brønsted Acid ◽  
One Pot ◽  
Metal Free ◽  
One Pot Synthesis ◽  
Brönsted Acid ◽  
Acid Catalyzed

Lewis acid-catalyzed tandem cyclization of in situ generated o-quinone methides and arylsulfonyl hydrazides for a one-pot entry to 3-sulfonylbenzofurans

2019 ◽  
Vol 6 (24) ◽  
pp. 3929-3933 ◽  
Author(s):  
Fan-Xiao Meng ◽  
Ruo-Nan Wang ◽  
Hong-Li Huang ◽  
Shu-Wen Gong ◽  
Qian-Li Li ◽  
...  
Keyword(s):  
Lewis Acid ◽  
Quinone Methides ◽  
One Pot ◽  
Acid Catalyzed ◽  
Tandem Cyclization ◽  
First Time

Lewis acid-mediated one-pot tandem cyclization of o-QMs with arylsulfonyl hydrazides was described for the first time and the corresponding 3-sulfonylbenzofuran products were obtained in moderate to good yields.

scholarly journals Green resins from renewable resources

2021 ◽  
Author(s):  
Justin J. Kosalka
Keyword(s):  
Phenolic Compounds ◽  
High Resolution Mass Spectrometry ◽  
Dicarboxylic Acids ◽  
13C Nmr Spectroscopy ◽  
One Pot ◽  
1H And 13C Nmr ◽  
X Ray Crystallography ◽  
Naturally Occurring ◽  
One Step ◽  
Acid Catalyzed

This work was aimed at exploring bio-based materials for the purpose of toner production on an industrial scale. Polyester and polyether based resins were prepared in good yields from naturally occurring phenolic compounds with desired thermal and physical properties. Phenols with varying functionality such as guaiacol, eugenol and vanillin along with two synthetically produced phenolic compounds modelling the β-O-4 linkage found in softwood lignins were explored as suitable precursors to synthetic, "green", resins. Phenols were transformed into diols using glycerine carbonate and a base catalyzed reaction. Diols were then polymerized with dicarboxylic acids in an acid catalyzed, transesterfication, reaction. A novel, bio-based polyether was synthesized in one pot, one step polymerization using vanillin. Thermal properties ((Tg) and (Ts) of resulting resins were evaluated. Resulting compounds and polymers were characterized using 1H and 13C NMR spectroscopy, high resolution mass spectrometry, elemental analysis, X-ray crystallography, DSC and GPC.

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