Access to 1<i>a</i>,6<i>b</i>-Dihydro-1<i>H</i>-benzofuro[2,3-<i>b</i>]azirines and Benzofuran-2-amines via Visible Light Triggered Decomposition of α-Azidochalcones
作者:Satheesh Borra、D. Chandrasekhar、Susmita Khound、Ram Awatar Maurya
DOI:10.1021/acs.orglett.7b02643
日期:2017.10.6
A novel, efficient, organic process that involves a photocatalyst-free visible light triggered decomposition of α-azidochalcones, followed by intramolecular cyclization, 1,2-acyl migration, and isomerization to construct benzofuran based molecular architectures, is described. The scope and limitation of the synthetic strategy were studied by synthesizing over 30 structurally diverse benzofurans in
描述了一种新颖,有效的有机过程,该过程涉及无光催化剂的可见光触发α-叠氮基苯并烷的分解,然后进行分子内环化,1,2-酰基迁移和异构化,以构建基于苯并呋喃的分子结构。通过合成高产率的30多种结构多样的苯并呋喃,研究了合成策略的范围和局限性。