Natural and synthetic 2H-pyran-2-ones and their versatility in organic synthesis
A Goel, VJ Ram - Tetrahedron, 2009 - Elsevier
The pyran ring system is widely present in the animal and plant kingdom and possesses
diverse pharmacological activities. Pyran is a six-membered oxygen heterocycle with two …
diverse pharmacological activities. Pyran is a six-membered oxygen heterocycle with two …
2H-Pyran-2-ones and their annelated analogs as multifaceted building blocks for the fabrication of diverse heterocycles
R Pratap, VJ Ram - Tetrahedron, 2017 - Elsevier
Abstract 2H-Pyran-2-ones are widely present in nature and found as either isolated or in
fused form. Depending on the fusion of benzene ring, pyran can give coumarins …
fused form. Depending on the fusion of benzene ring, pyran can give coumarins …
[PDF][PDF] Utility of Cyanoacetamides as Precursors to Pyrazolo (3, 4-d) pyrimidin-4-ones, 2-Aryl-6-substituted 1, 2, 3 Triazolo (4, 5-d) pyrimidines and Pyrazolo (1, 5-a) …
HM Ibrahim, S Makhseed, RM Abdel-Motaleb… - …, 2007 - academia.edu
Cyanoacetamides (7a-c) were prepared via reacting cyanoacetic acid (5) with amines in the
presence of acetic anhydride. Compounds (7a-c) coupled with benzenediazonium chloride …
presence of acetic anhydride. Compounds (7a-c) coupled with benzenediazonium chloride …
Synthesis and glycosidase inhibitory activity of novel (2-phenyl-4H-benzopyrimedo [2, 1-b]-thiazol-4-yliden) acetonitrile derivatives
A series of (2-phenyl-4H-benzopyrimodo [2, 1-b][1, 3] thiazol-4-yliden-4-yliden) acetonitrile
derivatives have been prepared by ring transformation reaction of 4-(methylthio)-2-oxo-6 …
derivatives have been prepared by ring transformation reaction of 4-(methylthio)-2-oxo-6 …
Synthesis of 4-substituted pyrano [4, 3-b] pyran-2, 5-diones in an ionic liquid
K Rad-Moghadam, M Sharifi-Kiasaraie, SC Azimi - Tetrahedron, 2012 - Elsevier
The mildly basic ionic liquid N, N, N, N-tetramethylguanidinium triflate (TMGTf) was found to
be a very effective solvent for the reaction between 4-hydroxy-6-methyl-2H-pyran-2-one …
be a very effective solvent for the reaction between 4-hydroxy-6-methyl-2H-pyran-2-one …
A Four‐Component Domino Reaction: An Eco‐Compatible Access to Diversified Imidazo[2,1‐b][1,3]thiazin‐5‐ones
A multicomponent domino reaction of thiourea, alkyl propiolates, aldehydes, and
isocyanides has been established, providing direct access to 2‐aryl‐5 H‐imidazo [2, 1‐b][1 …
isocyanides has been established, providing direct access to 2‐aryl‐5 H‐imidazo [2, 1‐b][1 …
Chemoselective synthesis of m-teraryls through ring transformation of 2 H-pyran-2-ones by 2-(1-arylethylidene)-malononitriles
We have developed a simple, efficient and chemoselective approach for the synthesis of m-
teraryls by the reaction of 6-aryl-2-oxo-4-(sec. amino)-2H-pyran-3-carbonitriles and 2-(1 …
teraryls by the reaction of 6-aryl-2-oxo-4-(sec. amino)-2H-pyran-3-carbonitriles and 2-(1 …
Synthetic routes to imidazothiazines
IAM Radini, BF Abdel-Wahab… - Phosphorus, Sulfur, and …, 2016 - Taylor & Francis
This review article presents the available synthetic routes for the preparation of different
types of imidazothiazines. Imidazothiazines dealt with are classified into five types based on …
types of imidazothiazines. Imidazothiazines dealt with are classified into five types based on …
Synthesis, photophysical, solvatochromic and DFT studies of (Z)-2-(2-Phenyl-4H-benzo [4, 5] thiazolo [3, 2-a] pyrimidin-4-ylidene) acetonitrile derivatives
RS Patil, AS Patil, VS Patil, HD Jirimali… - Journal of …, 2019 - Elsevier
Herein we report a simple and convenient, base promoted synthetic method for preparation
of (Z)-2-(2-phenyl-4H-benzo [4, 5] thiazolo [3, 2-a] pyrimidin-4-ylidene) acetonitrile …
of (Z)-2-(2-phenyl-4H-benzo [4, 5] thiazolo [3, 2-a] pyrimidin-4-ylidene) acetonitrile …
Synthesis and Aggregation-Induced Emission Properties of New Carbazole-Based Pyranones and their Ring-Transformed Derivatives
RP Vats, P Pandey, S Gupta, S Gupta, S Pal… - Synthesis, 2024 - thieme-connect.com
A new series of N-phenyl-carbazole (N-phCbz) appended pyranones were designed and
synthesized using α-oxo-ketene-S, S-acetal under mild reaction conditions in good yields …
synthesized using α-oxo-ketene-S, S-acetal under mild reaction conditions in good yields …