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.

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.

A Novel Copper-Assisted Synthesis Method for Dihydropyrano[2.3-b]Indole-4-ones by Domino Cascade Reaction

2021 ◽  
Author(s):  
Yang Luo ◽  
Xue Zhong ◽  
Jiangkun Huang ◽  
Ling He
Keyword(s):  
Synthesis Method ◽  
Cascade Reaction ◽  
Reaction Process ◽  
Regioselective Synthesis ◽  
One Pot

A novel copper-catalyzed cascade interolecular and intramolecular oxidation/cyclization domino one-pot reaction process for the regioselective synthesis of dihydropyrano[2.3-b]indol-4(9H)-ones has been successfully developed. In this methodology, it is proposed for the...

scholarly journals In Situ Growth of ZIF-8 Nanocrystals on the Pore Walls of 3D Ordered Macroporous TiO2 for a One-Pot Cascade Reaction

Catalysts ◽  
2021 ◽  
Vol 11 (5) ◽  
pp. 533
Author(s):  
Jing Chen ◽  
Yingchun Guo ◽  
Tengteng Kang ◽  
Xingchi Liu ◽  
Xiaomei Wang ◽  
...  
Keyword(s):  
Crystallization Process ◽  
Knoevenagel Condensation ◽  
Cascade Reaction ◽  
Multifunctional Composites ◽  
One Pot ◽  
Visible Light Absorption ◽  
Multiple Components ◽  
Ordered Macroporous ◽  
The One

It is wise to mimic a bioinspired system to design a nanoreactor as a catalyst containing multiple components for a cascade reaction. Here, we report the uniform growth of well-dispersed nano-scale ZIF-8 crystals on the pore walls of 3DOM TiO2 via the TEA-assisted crystallization process. The UV-vis spectra indicate that the ZIF-8 photosensitizer can extend the visible-light absorption of 3DOM TiO2. The obtained nanoreactor can efficiently catalyze the one-pot aromatic alcohol oxidization and Knoevenagel condensation cascade reaction for larger molecules. This work offers an important strategy for preparing semiconductor–MOF multifunctional composites with a spatially separated compartmentation for the cascade reaction.

scholarly journals One-pot regioselective synthesis of functionalized and fused furans from Morita–Baylis–Hillman and Rauhut–Currier adducts of nitroalkenes

RSC Advances ◽  
2015 ◽  
Vol 5 (86) ◽  
pp. 69990-69999 ◽  
Author(s):  
Vaijinath Mane ◽  
Tarun Kumar ◽  
Sourav Pradhan ◽  
Savita Katiyar ◽  
Irishi N. N. Namboothiri
Keyword(s):  
Cascade Reaction ◽  
Regioselective Synthesis ◽  
One Pot

Functionalized and fused furans were synthesized by a one-pot regioselective cascade reaction from Morita–Baylis–Hillman acetates and Rauhut–Currier adducts of nitroalkenes.

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.

Calcium-catalyzed formal [3 + 2] annulation of C,N-diacyliminium ions with nucleophilic phenols: a diversity oriented synthesis of 3-aminofurans

2021 ◽  
Author(s):  
Rajesh P. ◽  
Abdulrahman I. Almansour ◽  
Natarajan Arumugam ◽  
Srinivasarao Yaragorla
Keyword(s):  
Cascade Reaction ◽  
Solvent Free ◽  
One Pot ◽  
Diversity Oriented Synthesis

We report a one-pot, three-component, solvent-free, cascade reaction for the synthesis of 3-aminofurans using a calcium catalyst, in which, the in situ formed C,N-diacyliminium ion, is the key intermediate.

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