Q.B. Broxterman

Tetramethylcyclobutadiene radical cation

Q.B. Broxterman, H. Hogeveen, D. M. KOK · Tetrahedron Letters · 1981 · 17 citations

Heterocyclic, Tetramethylcyclobutadiene Radical Cation, Radical (Chemistry) +2

2-Azapyrylium salts from aluminum halide .sigma. complexes of cyclobutadienes and nitrosyl chloride. On the possible intermediacy of a heteroatom-substituted pyramidal cation

Q.B. Broxterman, H. Hogeveen, R. F. KINGMA et al. · Journal of the American Chemical Society · 1985 · 15 citations

2-Azapyrylium Salts, Inorganic Chemistry, Engineering +13

Cyclic delocalized 3 Π-electron systems. An ESR spectroscopic investigation of some tetra alkyl-substituted cyclobutadiene radical cations.

Q.B. Broxterman, H. Hogeveen · Tetrahedron Letters · 1983 · 14 citations

Esr Spectroscopic Investigation, π-Electron Systems, Heterocyclic +7

Synthesis, characterization, and solution conformational analysis of C alpha-methyl-, C alpha-benzylglycine [(alpha Me)Phe] model peptides.

Claudio Toniolo, Francesco Formaggio, Marco Crisma et al. · PubMed · 1992 · 11 citations

Peptide Engineering, Molecular Biology, Peptide Science +17

Towards persistent cyclobutadiene radical cations? The tetra-1-adamantyl-, and tetraneopentylcyclobutadiene radical cations.

Q.B. Broxterman, H. Hogeveen, R. F. KINGMA · Tetrahedron Letters · 1984 · 10 citations

Tetraneopentylcyclobutadiene Radical Cations, Heterocyclic, Biochemistry +4