Mapping the Enantiomerization Routes of Triarylvinyl Propellers. Barriers for the Three-Ring Flip and the Three Different Two-Ring Flips of m-Methoxy-Substituted Trimesitylvinyl Isopropyl Ethers

Article abstract of DOI:10.1021/jo00093a018

E- and Z-(m-methoxymesityl)-1,2-dimesitylethenols (3a and 4a), their isopropyl ethers 3c and 4c, and 1-(m-methoxymesityl)-2,2-dimesitylvinyl isopropyl ether (2c) were prepared.X-ray structures of 3a and 3c were determinated.The rotational barriers for the