📜5-溴香兰素置于palladium On Activated Charcoal 四氢吡咯,吡啶,Ammonium Hydroxide,Lithium Aluminium Tetrahydride,盐酸羟胺,氢气,Copper(II) Sulfate体系中,用 四氢呋喃,吡啶 用作溶剂,化学反应 40.0H,反应生成2-(4-羟基-3-甲氧基苯基)-7-甲氧基-5-苯并呋喃丙醇
参考文献:Compounds From Danshen. Part 7. Regioselective Introduction Of Carbon-3 Substituents To 5-Alkyl-7-Methoxy-2-Phenylbenzo[b]Furans: Synthesis Of A Novel Adenosine A1 Receptor Ligand And Its Derivatives
标题:Compounds From Danshen. Part 7. Regioselective Introduction Of Carbon-3 Substituents To 5-Alkyl-7-Methoxy-2-Phenylbenzo[b]Furans: Synthesis Of A Novel Adenosine A1 Receptor Ligand And Its Derivatives
摘要:By Maintaining The Balance Between The Electronic Requirements,The Stereochemical Restrictions As Well As The Kinetic And Thermodynamic Factors,The Unprecedented Regioselective Electrophilic Aromatic Substitution Of Formyl And Nitro Groups To Carbon-3 Of 5-Alkyl-7-Methoxy-2-Phenylbenzo[b]Furans Have Been Achieved. Subsequent Transformation Of The Resulting Formyl Group Into Methyl,Hydroxymethyl,1-Hydroxyethyl,And Cyano Groups Are Also Described.
Doi:10.1021/jo00052A046