Intramolecular 4 + 3 cycloadditions. A theoretical analysis of simple diastereoselectivity in reactions of alkoxyallylic cations and furans.
[reaction--see text] A computational examination (B3LYP/6-31+G*//HF/6-31+G* + ZPVE) of an intramolecular 4 + 3 cycloaddition reaction suggests a stepwise process and the likelihood of reversibility in at least one of the pathways examined.
Harmata
M
M
Institut für Organische Chemie, Georg-August-Universität, Göttingen, Tammannstr. 2, 37077 Göttingen, Germany.
Schreiner
P R
PR