Pyrazoles: ‘one-pot’ synthesis from arenes and carboxylic acids

2020 ◽  
Vol 18 (29) ◽  
pp. 5625-5638
Author(s):  
Jung Keun Kim ◽  
Ming Gong ◽  
Elvira A. Shokova ◽  
Viktor A. Tafeenko ◽  
Olga V. Kovaleva ◽  
...  
Keyword(s):  
Carboxylic Acids ◽  
Efficient Method ◽  
One Pot ◽  
One Pot Synthesis ◽  
Successive Formation

A rapid and efficient method for ‘one-pot’ synthesis of pyrazoles from (hetero)arenes and carboxylic acids via successive formation of ketones and β-diketones followed by heterocyclization with hydrazine has been developed.

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.

One-pot synthesis of amides from carboxylic acids activated using thionyl chloride

RSC Advances ◽  
2016 ◽  
Vol 6 (41) ◽  
pp. 34468-34475 ◽  
Author(s):  
A. Leggio ◽  
E. L. Belsito ◽  
G. De Luca ◽  
M. L. Di Gioia ◽  
V. Leotta ◽  
...  
Keyword(s):  
Carboxylic Acids ◽  
Tertiary Amine ◽  
Thionyl Chloride ◽  
One Pot ◽  
One Pot Synthesis ◽  
Tertiary Amides

We report on a one-pot synthesis of secondary and tertiary amides from carboxylic acids and amines in the presence of a tertiary amine by using thionyl chloride.

An Efficient One-Pot Synthesis of N-Methoxy-N-methylamides from Carboxylic Acids.

ChemInform ◽  
2004 ◽  
Vol 35 (12) ◽  
Author(s):  
Misoo Kim ◽  
Hagyoung Lee ◽  
Ki-Jong Han ◽  
Kwang-Yol Kay
Keyword(s):  
Carboxylic Acids ◽  
One Pot ◽  
One Pot Synthesis

scholarly journals 1,8-Diazabicyclo[5.4.0]undec-7-ene-mediated formation of N-sulfinyl imines

2019 ◽  
Vol 44 (1-2) ◽  
pp. 72-79 ◽  
Author(s):  
Manjunatha M Ramaiah ◽  
Priya Babu Shubha ◽  
Pavan Kumar Prabhala ◽  
Nanjunda Swamy Shivananju
Keyword(s):  
Efficient Method ◽  
Room Temperature ◽  
One Pot ◽  
One Pot Synthesis

A facile and efficient method was developed for the preparation of a variety of aryl, heteroaryl, and alkyl N-sulfinyl imines using 1,8-diazabicyclo[5.4.0]undec-7-ene. In addition to tert-butanesulfinamide, the condensation is also effective with p-toluenesulfinamide. The reaction was performed at room temperature and produces the corresponding N-sulfinyl imines in excellent yields in the absence of acids, metals, and additives. This methodology is also useful for the preparation of N-sulfinyl imines on gram scale. A one-pot synthesis was developed using aryl and heteroaryl alcohols with both tert-butanesulfinamide and p-toluenesulfinamide at room temperature, resulting in the corresponding N-sulfinyl imines with good yields.

ChemInform Abstract: Convenient One-Pot Synthesis of 2-Oxazolines from Carboxylic Acids.

ChemInform ◽  
2009 ◽  
Vol 40 (21) ◽  
Author(s):  
Kazuhito Hioki ◽  
Yumiko Takechi ◽  
Noriyo Kimura ◽  
Hiroyuki Tanaka ◽  
Munetaka Kunishima
Keyword(s):  
Carboxylic Acids ◽  
One Pot ◽  
One Pot Synthesis

scholarly journals ChemInform Abstract: T3P® (Propylphosphonic Anhydride) Mediated Conversion of Carboxylic Acids into Acid Azides and One-Pot Synthesis of Ureidopeptides.

ChemInform ◽  
2010 ◽  
Vol 41 (35) ◽  
pp. no-no
Author(s):  
Basavaprabhu Basavaprabhu ◽  
N. Narendra ◽  
Ravi S. Lamani ◽  
Vommina V. Sureshbabu
Keyword(s):  
Carboxylic Acids ◽  
One Pot ◽  
One Pot Synthesis

One-pot synthesis of .beta.-keto sulfones and .beta.-keto sulfoxides from carboxylic acids

1989 ◽  
Vol 54 (23) ◽  
pp. 5620-5623 ◽  
Author(s):  
C. Alvarez Ibarra ◽  
R. Cuervo Rodriguez ◽  
M. C. Fernandez Monreal ◽  
F. J. Garcia Navarro ◽  
J. Martin Tesorero
Keyword(s):  
Carboxylic Acids ◽  
One Pot ◽  
One Pot Synthesis

scholarly journals ZnO-beta zeolite mediated simple and efficient method for the one-pot synthesis of quinoxaline derivatives at room temperature

2010 ◽  
Vol 8 (2) ◽  
pp. 320-325 ◽  
Author(s):  
Santosh Katkar ◽  
Pravinkumar Mohite ◽  
Lakshman Gadekar ◽  
Balasaheb Arbad ◽  
Machhindra Lande
Keyword(s):  
Efficient Method ◽  
Room Temperature ◽  
Environmentally Benign ◽  
Beta Zeolite ◽  
Reaction Conditions ◽  
One Pot ◽  
One Pot Synthesis ◽  
Quinoxaline Derivatives ◽  
The One ◽  
Work Up

AbstractA rapid and an efficient one-pot method for the synthesis of quinoxalines catalysed by ZnO-beta zeolite at room temperature is described. This environmentally benign method provides several advantages over methods that are currently employed such as a simple work-up, mild reaction conditions, good to excellent yields, and a process to recover and reuse the catalyst for several cycles with consistent activity.

An Efficient One-Pot Synthesis of N-Methoxy-N-methylamides from Carboxylic Acids

2003 ◽  
Vol 33 (23) ◽  
pp. 4013-4018 ◽  
Author(s):  
Misoo Kim ◽  
Hagyoung Lee ◽  
Ki-Jong Han ◽  
Kwang-Yol Kay
Keyword(s):  
Carboxylic Acids ◽  
One Pot ◽  
One Pot Synthesis
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