Concepedia

Efficient Oxidation of Hantzsch 1,4-Dihydropyridines with Nicotinium Dichromate

Morteza Sadeghi, Iraj Mohammadpoor‐Baltork, Hamid Reza Memarian, Sara Sobhani

Synthetic Communications · 2000 · 35 citations · 12 references

DOI

Concepts

Abstract

Abstract A convenient method for the oxidation of various 4-substituted Hantzsch 1,4-dihydropyridines with nicotinium dichromate (NDC) in refluxing acetonitrile is reported. The yields obtained are excellent.

References

12

Oxidation of 4-aryl- and 4-alkyl-substituted 2,6-dimethyl-3,5-bis(alkoxycarbonyl)-1,4-dihydropyridines by human liver microsomes and immunochemical evidence for the involvement of a form of cytochrome P-450

Ronald Boecker, F. Peter Guengerich · Journal of Medicinal Chemistry · 1986 · 323 citations · Full text

, , +13

Old reagents, new results: Aromatization of Hantzsch 1,4-dihydropyridines with manganese dioxide and 2,3-dichloro-5,6-dicyano-1,4-benzoquinone

Jean Jacques Vanden Eynde, Florence Delfosse, Annie Mayence et al. · Tetrahedron · 1995 · 160 citations

, , +2

Rapid, High-Yield Oxidation of Hantzsch-Type 1,4-Dihydropyridines with Ceric Ammonium Nitrate

Jürg R. Pfister · Synthesis · 1990 · 137 citations

, , +7

A novel application of the oxidizing properties of pyridinium chlorochromate : aromatization of Hantzsch 1,4-dihydropyridines

Jean Jacques Vanden Eynde, Annie Mayence, A. Maquestiau · Tetrahedron · 1992 · 128 citations

, , +11

Potassium permanganate, a versatile reagent for the aromatization of Hantzsch 1,4-dihydropyridines

Jean Jacques Vanden Eynde, Rita D'Orazio, Yves Van Haverbeke · Tetrahedron · 1994 · 111 citations

, , +5