R. Kingma

Synthesis of phosphirenium salts

H. Hogeveen, K. S. Fongers, R. Kingma, 1983 .

A CONVENIENT SYNTHESIS OF CYCLOBUTADIENEIRON-TRICARBONYL COMPLEXES FROM ALKYNES VIA ALUMINUM HALIDE SIGMA-COMPLEXES OF CYCLOBUTADIENES

H. Hogeveen, K. S. Fongers, R. Kingma, 1982 .

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

H. Hogeveen, Q. Broxterman, R. Kingma, 1984 .

Reaction of aluminum halide σ complexes of cyclobutadienes with phosphonous dichlorides. Preparation of phospholium salts and phosphole oxides.

H. Hogeveen, K. S. Fongers, R. Kingma, 1983 .

2-AZAPYRYLIUM SALTS FROM ALUMINUM HALIDE SIGMA-COMPLEXES OF CYCLOBUTADIENES AND NOCL - ON THE POSSIBLE INTERMEDIACY OF A HETEROATOM-SUBSTITUTED PYRAMIDAL CATION

H. Hogeveen, F. Vanbolhuis, Q. Broxterman, 1985 .

Preparation of 1,3-dialkynyladamantanes and their aluminum bromide-mediated cycloaddition adducts

H. Hogeveen, Q. Broxterman, R. Kingma, 1986 .