Trinacrene – a Product of Structure‐Directed Synthesis

Abstract

Trinacrene (1) is a promising—and very attractive‐new cage compound with a name derived from an old designation for Sicily (Trinacrien). The synthesis of 1 was accomplished in two steps involving six (2 × 3) Diels–Alder reactions and highly symmetrical precursors, the second step being a high‐pressure reaction (10 kbar). Compound 1 displays D3h symmetry and gives only the predicted five 1H NMR signals. (Figure Presented.) Copyright © 1989 by VCH Verlagsgesellschaft mbH, Germany