Nucleophilic Aromatic Substitution (S<sub>N</sub>Ar) as an Approach to Challenging Carbohydrate–Aryl Ethers
作者:Alexander S. Henderson、Sandra Medina、John F. Bower、M. Carmen Galan
DOI:10.1021/acs.orglett.5b02413
日期:2015.10.2
A general and practical route to carbohydrate–aryl ethers by nucleophilic aromatic substitution (SNAr) is reported. Upon treatment with KHMDS, C–O bond formation occurs between carbohydrate alcohols and a diverse range of fluorinated (hetero)aromatics to provide the targets in good to excellent yields. Commercially available arylating agents, high atom economy, and high regioselectivity are notable
据报道,通过亲核芳族取代(S N Ar)制取碳水化合物-芳基醚的通用方法是可行的。用KHMDS处理后,碳水化合物醇与各种氟化(杂)芳烃之间便会形成C–O键,从而以良好至极佳的收率提供了目标化合物。该方案的显着特征是可商购的芳基化剂,高原子经济性和高区域选择性。芳族醚产物具有广泛用途的潜力,如合成新型手性P,N-配体所举例说明的。