R. H. Everhardus

Metallation of 1,3‐dienyl ethers and 1,3‐dienyl sulfides in the 1‐position

R. H. Everhardus, R. Gräfing, L. Brandsma · Recueil des Travaux Chimiques des Pays-Bas · 1978 · 33 citations

Complete Inversion, Chemical Engineering, Engineering +8

Preferred - 1,3- substitution by attack of organocuprates on the methane—sulfinate of (R)-(−)-3-hydroxy-3-phenylpropyne. An attractive route to chiral allenes.

G. Tadema, R. H. Everhardus, H. Westmijze et al. · Tetrahedron Letters · 1978 · 31 citations

1,3- Substitution, Engineering, Organic Chemistry +9

Preparation of 1,3‐dienyl ethers and thioethers by alkali amide induced elimination of alcohol, phenol or thiol from 1,4‐bis‐ethers and ‐thioethers derived from 2‐butene‐1,4‐diol

R. H. Everhardus, A. J. G. M. Peterse, P. Vermeer et al. · Recueil des Travaux Chimiques des Pays-Bas · 1974 · 23 citations

Chemical Engineering, Novel Organocatalysts, Engineering +10

On the synthesis of 2,5‐dihydrothiophene

R. H. Everhardus, R. Gräting, L. Brandsma · Recueil des Travaux Chimiques des Pays-Bas · 1976 · 16 citations

Chemical Engineering, Engineering, S 2 +6

Novel cyclisation of 1-(alkyl- or phenyl-thio)-4-(methylthio)buta-1,3-dienes to thiophen derivatives

R. H. Everhardus, Hans G. Eeuwhorst, L. Brandsma · Journal of the Chemical Society Chemical Communications · 1977 · 13 citations

Ring Closure, Room Temperature, Nucleophilic Attack +8