Synthesis of 4<i>H</i>-tetrazolo[1,5-<i>a</i>][1]benzazepines from the baylis-hillman adducts of 2-azidobenzaldehyde
作者:Chang Hoon Lee、Young Seok Song、Hyun In Cho、Je Woo Yang、Kee-Jung Lee
DOI:10.1002/jhet.5570400622
日期:2003.11
Novel heterocycles, 4H-tetrazolo[1,5-a][1]benzazepines 6 were prepared by the intramolecular 1,3-dipolar cycloaddition reaction of azidophenylcyanomethyl compounds 5. The latter were readily obtained from 2-azidobenzaldehyde through the Baylis-Hillman adducts 3 followed by acetylation to compounds 4 and nucleophilic substitution by cyanide to compounds 5.
新颖的杂环,4 ħ -tetrazolo [1,5-一个] [1]苯并吖庚因6由azidophenylcyanomethyl的分子内1,3-偶极环加成反应制备的化合物5.后者是容易从2- azidobenzaldehyde通过所获得的Baylis-希尔曼加合物3,然后乙酰化为化合物4,并通过氰化物进行亲核取代,形成化合物5。