An Efficient Straightforward Synthesis of Benzazulene

Article abstract of DOI:10.1002/hlca.19950780321

Benzazulene (1) is synthesized in five steps (cf.Scheme 2) starting from commercially available 2-iodobenzyl alcohol (4) and tropylium tetrafluoroborate in an overall yield of 44percent.The key step (cf. also Scheme 1) is the intramolecular Heck reacti