Concepedia

Pyridazine Derivatives. Part 21: Synthesis and Structural Study of Novel 4-Aryl-2,5-dioxo-8-phenylpyrido[2,3-d]pyridazines

Beatriz Pita, Eddy Sotelo, Margarita Suárez, Enrique Raviña, Estael Ochoa, Yamila Verdecia, H. Novoa, N. M. Blaton, Caimle de Ranter, Oswald M. Peeters

Tetrahedron · 2000 · 51 citations · 24 references

DOI

Concepts

References

24

Development and use of quantum mechanical molecular models. 76. AM1: a new general purpose quantum mechanical molecular model

Michael J. S. Dewar, Eve G. Zoebisch, Eamonn F. Healy et al. · Journal of the American Chemical Society · 1985 · 13.1K citations

, , +10

General definition of ring puckering coordinates

Dieter Cremer, J. A. Pople · Journal of the American Chemical Society · 1975 · 7.2K citations

, , +5

Conformational analysis. 130. MM2. A hydrocarbon force field utilizing V1 and V2 torsional terms

Norman L. Allinger · Journal of the American Chemical Society · 1977 · 3.6K citations

, , +6

Conformational analysis of 4-aryl-dihydropyrimidine calcium channel modulators. A comparison of ab initio, semiempirical and X-ray crystallographic studies

C. Oliver Kappe, Walter M. F. Fabian, M.A. Semones · Tetrahedron · 1997 · 402 citations

, , +17

Rules for ring closure: application to intramolecular aldol condensations in polyketonic substrates

Jack E. Baldwin, Michael J. Lusch · Tetrahedron · 1982 · 237 citations

, , +7