134919-77-0Relevant articles and documents
A CONVENIENT, ONE-POT AZULENE SYNTHESIS FROM 2H-CYCLOHEPTAFURAN-2-ONES WITH VINYL ETHER AND ITS ANALOGUES III. ORTHOESTERS AS A REAGENT
Nozoe, Tetsuo,Wakabayashi, Hidetsugu,Shindo, Kimio,Ishikawa, Sumio,Wu, Chi-Phi,Yang, Paw-Wang
, p. 213 - 220 (2007/10/02)
2-Alkoxy and 2,4-dialkoxyazulene derivatives were synthesized in one-pot and in good yields by the reaction of 2H-cycloheptafuran-2-ones with orthoesters on heating either neat or in an aprotic solvent at 160-190 deg C.