Alexander Wittkopp

H-Bonding Additives Act Like Lewis Acid Catalysts

Peter R. Schreiner, Alexander Wittkopp · Organic Letters · 2002 · 462 citations · Full text

H-bond Association Constant, Chemical Engineering, Engineering +14

Metal‐Free, Noncovalent Catalysis of Diels–Alder Reactions by <i>Neutral</i> Hydrogen Bond Donors in Organic Solvents and in Water

Alexander Wittkopp, Peter R. Schreiner · Chemistry - A European Journal · 2003 · 409 citations

Can Fulvenes Form from Enediynes? A Systematic High-Level Computational Study on Parent and Benzannelated Enediyne and Enyne−Allene Cyclizations

Matthias Prall, Alexander Wittkopp, Peter R. Schreiner · The Journal of Physical Chemistry A · 2001 · 126 citations

Benzannelated Enediyne, Novel Cyclization Modes, Engineering +12

A Valence Bond Study of the Bergman Cyclization: Geometric Features, Resonance Energy, and Nucleus-Independent Chemical Shift (NICS) Values

John Morrison Galbraith, Peter R. Schreiner, Nathan Harris et al. · Chemistry - A European Journal · 2000 · 67 citations

Inorganic Chemistry, Bergman Cyclization, Engineering +14

Substituent effects on the Bergman cyclization of (<i>Z</i>)‐1,5‐hexadiyne‐3‐enes: a systematic computational study

Matthias Prall, Alexander Wittkopp, Andrey A. Fokin et al. · Journal of Computational Chemistry · 2001 · 65 citations

Halogenation, Chemical Engineering, Bergman Cyclization +13