Synthesis of Benzo[<i>b</i>]furans by Intramolecular C–O Bond Formation Using Iron and Copper Catalysis
作者:Martyn C. Henry、Andrew Sutherland
DOI:10.1021/acs.orglett.0c00754
日期:2020.4.3
synthesis of benzo[b]furansfrom 1-aryl- or 1-alkylketones using nonprecious transition metal catalysts have been developed. Regioselective iron(III)-catalyzed halogenation of the aryl ring, followed by iron- or copper-catalyzed O-arylation allowed the synthesis of various structural analogues, including the benzo[b]furan-derived natural products corsifuran C, moracin F, and caleprunin B.
已经开发出使用非贵金属过渡金属催化剂从1-芳基酮或1-烷基酮合成苯并[ b ]呋喃的一锅法。区域选择性铁(III)催化的芳环卤化,然后是铁或铜催化的O-芳基化,可以合成各种结构类似物,包括苯并[ b ]呋喃衍生的天然产物corsifuran C、moracin F和卡普鲁宁 B.
Inhibitors of Histone Deacetylase
申请人:Moradei Oscar
公开号:US20080132503A1
公开(公告)日:2008-06-05
The invention relates to the inhibition of histone deacetylase. The invention provides compounds and methods for inhibiting histone deacetylase enzymatic activity. The invention also provides compositions and methods for treating cell proliferative diseases and conditions.
A convenient strategy for the preparation of compounds bearing the benzofuran skeleton starting from tyrosol, a phenol largely present in olive oil production waste, with no biological importance, is reported. A bromination/methoxylation sequence, already described for the synthetic transformation of naturally occurring compounds, was exploited. Depending on the solvent used for the methoxylation reaction together with the presence of a 4-phenol moiety respect to the side chain, benzodihydrofurans or a benzofurans derivative can be obtained.
699. Organic fluoro-compounds. Part VII. Some 2-trihalogenocoumarones
作者:W. B. Whalley
DOI:10.1039/jr9530003479
日期:——
Coumarones from o-Hydroxyaldehydes and Bromomalonic Ester