scholarly journals PEG-Promoted One-Pot Synthesis of 1,4-Dihydropyridine Derivatives Via Hantzsch Reaction in H2O

2011 ◽  
Vol 55 (2) ◽  
pp. 313-316 ◽  
Author(s):  
Xiao-Ying Hua ◽  
Bing-Wei Xin
Keyword(s):  
Hantzsch Reaction ◽  
One Pot ◽  
One Pot Synthesis ◽  
Dihydropyridine Derivatives

ChemInform Abstract: Cobalt Triflate Catalyzed One-Pot Synthesis of Fluorophore 1,4-Dihydropyridine Derivatives via Hantzsch Reaction.

ChemInform ◽  
2014 ◽  
Vol 45 (17) ◽  
pp. no-no
Author(s):  
Prasanta Ray Bagdi ◽  
R. Sidick Basha ◽  
Mohan Lal ◽  
Rajkumar Misra ◽  
Abu T. Khan
Keyword(s):  
Hantzsch Reaction ◽  
One Pot ◽  
One Pot Synthesis ◽  
Dihydropyridine Derivatives

A simple and efficient one-pot synthesis of Hantzsch 1,4-dihydropyridines using silica sulphuric acid as a heterogeneous and reusable catalyst under solvent-free conditions

2011 ◽  
Vol 65 (6) ◽  
Author(s):  
Eskandar Kolvari ◽  
Mohammad Zolfigol ◽  
Nadiya Koukabi ◽  
Behzad Shirmardi-Shaghasemi
Keyword(s):  
Sulphuric Acid ◽  
Recyclable Catalyst ◽  
Solvent Free ◽  
Reusable Catalyst ◽  
One Pot ◽  
One Pot Synthesis ◽  
Solvent Free Conditions ◽  
Dihydropyridine Derivatives

AbstractA simple, inexpensive and efficient one-pot synthesis of 1,4-dihydropyridine derivatives under solvent-free conditions using silica sulphuric acid (SSA) as a heterogeneous and recyclable catalyst is reported.

Aqua-mediated one-pot synthesis and aromatization of pyrimido-fused 1,4-dihydropyridine derivatives using ammonium salts

2007 ◽  
Vol 85 (5) ◽  
pp. 400-405 ◽  
Author(s):  
Mazaahir Kidwai ◽  
Kavita Singhal
Keyword(s):  
Ammonium Nitrate ◽  
Single Step ◽  
Ammonium Salts ◽  
Environmentally Benign ◽  
High Yield ◽  
Pyridine Derivatives ◽  
One Pot ◽  
One Pot Synthesis ◽  
Synthetic Procedure ◽  
Dihydropyridine Derivatives

Dipyrimidine-fused pyridine derivatives were synthesized using 1,3-diketone, aldehyde, different ammonium salts, and water, as the solvent. Aromatization was observed when ammonium nitrate was used as the source of nitrogen, and thus, dipyrimidine-fused pyridine derivatives were synthesized in one-pot synthetic procedure. This environmentally benign procedure leads to high yield of products (80%–90%) in a single step, with greater purity using water as the solvent.Key words: water, aromatization, dipyrimidopyridine, ammonium salts.

ChemInform Abstract: One-Pot Synthesis of 2-(Dicyanomethylene)-1,2-dihydropyridine Derivatives.

ChemInform ◽  
2014 ◽  
Vol 45 (39) ◽  
pp. no-no
Author(s):  
Ivan N. Bardasov ◽  
Anastasiya U. Alekseeva ◽  
Denis L. Mihailov ◽  
Oleg V. Ershov ◽  
Oleg E. Nasakin ◽  
...  
Keyword(s):  
One Pot ◽  
One Pot Synthesis ◽  
Dihydropyridine Derivatives
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