83300-99-6

Upstream product

• 100-52-7 benzaldehyde 
• 598-50-5 N-Methylurea 
• 623-47-2 propynoic acid ethyl ester 
• 53219-65-1 diethyl-1,4-dihydro-4-phenyl-pyridine-3,5-dicarboxylate 
• 74-88-4 methyl iodide 
• 83301-03-5 1,3,5-triethoxycarbonyl-4-phenyl-1,4-dihydropyridine 

Downstream Products

• 83301-10-4 1-Methyl-4-phenyl-1,4-dihydro-pyridine-3,5-dicarboxylic acid monoethyl ester 
• 83301-11-5 1-Methyl-4-phenyl-1,4-dihydro-pyridine-3,5-dicarboxylic acid 
• 120533-78-0 1-Methyl-4-phenyl-1,4-dihydro-pyridine-3,5-dicarbothioic acid di-O-ethyl ester 

Relevant academic research and scientific papers

1,2,3,4-TETRAHYDROPYRIMIDINES AND SOME OTHER COMPOUNDS BASED ON PROPIOLIC ACID DERIVATIVES

The reactions of ethyl propiolate and propiolamide with methylene and benzaldehyde and anisaldehyde in an acidic medium, in which the corresponding 2-oxo-1,2,3,4-tetrahydropyrimidines and 1,4-dihydropyrimidines or a 3,4-dihydropyrimidine derivative are formed, were studied.

SYNTHESIS AND PROPERTIES OF 1-SUBSTITUTED DERIVATIVES OF DIETHYL 4-ARYL-1,4-DIHYDROPYRIDINE-3,5-DICARBOXYLIC ACID ESTERS

1-Unsubstituted 4-aryl-3,5-diethoxycarbonyl-1,4-dihydropyridines in the presence of NaH form anions that react with alkyl halides, acid chlorides, and halo acid esters to form the corresponding 1-substituted derivatives of 1,4-dihydropyridine.Hydrolysis o