Cu(OAc)2–Et3N mediated oxidative coupling of α-azido ketones with pyridinium ylides: utilizing in situ generated imines for regioselective synthesis of imidazo[1,2-a]pyridines

2015 ◽  
Vol 51 (52) ◽  
pp. 10475-10478 ◽  
Author(s):  
Ahmed Kamal ◽  
Chada Narsimha Reddy ◽  
Malasala Satyaveni ◽  
D. Chandrasekhar ◽  
Jagadeesh Babu Nanubolu ◽  
...  
Keyword(s):  
Oxidative Coupling ◽  
Regioselective Synthesis ◽  
One Pot ◽  
Pyridinium Ylides

Imidazo[1,2-a]pyridines are synthesized via Cu(OAc)2–Et3N mediated one-pot coupling of pyridines, α-bromo ketones and α-azido ketones.

ChemInform Abstract: Cu(OAc)2-Et3N Mediated Oxidative Coupling of α-Azido Ketones with Pyridinium Ylides: Utilizing in situ Generated Imines for Regioselective Synthesis of Imidazo[1,2-a]pyridines.

ChemInform ◽  
2015 ◽  
Vol 46 (44) ◽  
pp. no-no
Author(s):  
Ahmed Kamal ◽  
Chada Narsimha Reddy ◽  
Malasala Satyaveni ◽  
D. Chandrasekhar ◽  
Jagadeesh Babu Nanubolu ◽  
...  
Keyword(s):  
Oxidative Coupling ◽  
Regioselective Synthesis ◽  
Pyridinium Ylides

Catalyst free Synthesis of Highly Functionalized Indolizines from In Situ Generated Pyridinium Ylides via One‐Pot Multicomponent Reaction

2019 ◽  
Vol 4 (13) ◽  
pp. 3717-3721 ◽  
Author(s):  
Vediyappan Ramesh ◽  
Natarajan Savitha Devi ◽  
Marappan Velusamy ◽  
Sivakumar Shanmugam
Keyword(s):  
Multicomponent Reaction ◽  
One Pot ◽  
Catalyst Free ◽  
Pyridinium Ylides

Pd(II) supramolecular cage-catalyzed successive oxidative coupling: One-pot and regioselective synthesis of functionalized carbazoles from indoles

2019 ◽  
Vol 124 ◽  
pp. 12-18
Author(s):  
Xi-Ren Wu ◽  
He-Long Peng ◽  
Lian-Qiang Wei ◽  
Li-Ping Li ◽  
Su-Yang Yao ◽  
...  
Keyword(s):  
Oxidative Coupling ◽  
Regioselective Synthesis ◽  
One Pot

One-pot cascade synthesis of 2,3-disubstituted 2,3-dihydrobenzofurans via ortho-quinone methide intermediates generated in situ

RSC Advances ◽  
2015 ◽  
Vol 5 (19) ◽  
pp. 14892-14896 ◽  
Author(s):  
Abdul kadar Shaikh ◽  
George Varvounis
Keyword(s):  
Cascade Reaction ◽  
Regioselective Synthesis ◽  
Quinone Methide ◽  
One Pot

A simple and efficient one-pot cascade reaction for the regioselective synthesis of trans or cis/trans-2,3-disubstituted 2,3-dihydrobenzofurans, is described.

Regioselective facile synthesis of novel isoxazole-linked glycoconjugates

RSC Advances ◽  
2015 ◽  
Vol 5 (52) ◽  
pp. 41520-41535 ◽  
Author(s):  
Amrita Mishra ◽  
Bhuwan B. Mishra ◽  
Vinod K. Tiwari
Keyword(s):  
Nitrile Oxide ◽  
Regioselective Synthesis ◽  
Facile Synthesis ◽  
One Pot

One-pot regioselective synthesis of novel isoxazole-linked glycoconjugates, by the reaction ofin situgenerated glycosyl-β-nitrile oxide and different alkynes, has been devised.

scholarly journals Copper-catalyzed in situ oxidative-coupling for one-pot synthesis of 5-aryl-1,4-disubstituted 1,2,3-triazoles under mild conditions

RSC Advances ◽  
2021 ◽  
Vol 11 (60) ◽  
pp. 38108-38114
Author(s):  
Chao Wang ◽  
Qianqian Li ◽  
Shilei Wang ◽  
Gongming Zhu ◽  
Anlian Zhu ◽  
...  
Keyword(s):  
Oxidative Coupling ◽  
Reaction System ◽  
One Pot ◽  
Mild Conditions ◽  
One Pot Synthesis ◽  
Chloramine T

A new reaction system with CuCl as catalyst, TEA as base and O2/chloramine-T as oxidant was developed for one-pot in situ oxidative-coupling to synthesize 5-aryl-1,4-disubstituted 1,2,3-triazoles in this paper.

Indium Bromide-catalyzed Unprecedented Hydrogenolysis: A Novel One-Pot Synthesis of Per-O-Acetylated β-carboxymethyl O and S-glycosides

2020 ◽  
Vol 24 (8) ◽  
pp. 900-908
Author(s):  
Ram Naresh Yadav ◽  
Amrendra K Singh ◽  
Bimal Banik
Keyword(s):  
Asymmetric Synthesis ◽  
Chiral Auxiliary ◽  
Bioactive Molecules ◽  
One Pot ◽  
Enantiomerically Pure ◽  
Stereoselective Glycosylation ◽  
One Pot Synthesis ◽  
Wide Range

Numerous O (oxa)- and S (thia)-glycosyl esters and their analogous glycosyl acids have been accomplished through stereoselective glycosylation of various peracetylated bromo sugar with benzyl glycolate using InBr3 as a glycosyl promotor followed by in situ hydrogenolysis of resulting glycosyl ester. A tandem glycosylating and hydrogenolytic activity of InBr3 has been successfully investigated in a one-pot procedure. The resulting synthetically valuable and virtually unexplored class of β-CMGL (glycosyl acids) could serve as an excellent potential chiral auxiliary in the asymmetric synthesis of a wide range of enantiomerically pure medicinally prevalent β-lactams and other bioactive molecules of diverse medicinal interest.

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