ChemInform Abstract: Syntheses of 3,4‐Benzotropolones by Ring‐Closing Metatheses.

Abstract

Syntheses of 3,4-Benzotropolones by Ring-Closing Metatheses. -For the first time, a nonbenzenoid aromatic such as tropolone is obtained via ring-closing metathesis. Using three different approaches, a series of mostly unknown 3,4-benzotropolones is synthesized. -(ARICAN, D.; BRUECKNER*, R.; Org. Lett. 15 (2013) 11, 2582-2585, http://dx.doi.org/10.1021/ol400510j ; Inst. Org. Chem., Albert-Ludwigs-Univ., D-79104 Freiburg/Br., Germany; Eng.) -H. Haber 39-054