4622-37-1Relevant articles and documents
Novel Syntheses of 1,6-Methanoannulene and 4-Methylazulene
Banwell, Martin G.,Papamihail, Con
, p. 1182 - 1183 (1981)
Reaction of 11,11-dichlorotricyclo1,6>undeca-3,8-diene (4) with potassium t-butoxide in dimethyl sulphoxide affords 1,6-methanoannulene (9) and 4-methylazulene (10); similar treatment of the dibromopropellane (5) yields the azulene (10), the monobromopropellane (11), but diminished yields of the annulene (9).