Carbon-carbon cleavage during Birch-Hueckel-type reductions
作者:Clair J. Collins、Hans Peter Hombach、Brian Maxwell、Madge C. Woody、Ben M. Benjamin
DOI:10.1021/ja00522a074
日期:1980.1
Results of reactions of Na-K alloy in the solvent system glyme-triglyme on a series of compounds, bibenzyl, 1,2-diphenylpropane, diphenylmethane, and phenyl-p-tolylmethane, to determine whether the Birch-Hueckel reduction could be used in this solvent system to cleave C-C bonds are reported. Both methyl-/sup 14/C iodide and water were studied as quenchers, and the products from all reactions were analyzed
Na-K 合金在溶剂系统甘醇二甲醚-三甘醇二甲醚中对一系列化合物(联苄基、1,2-二苯基丙烷、二苯基甲烷和苯基-对甲苯基甲烷)的反应结果,以确定 Birch-Hueckel 还原是否可用于报道了这种裂解 CC 键的溶剂系统。研究了甲基-/sup 14/C 碘化物和水作为猝灭剂,所有反应的产物都通过气相色谱分析。结果表明,在本工作研究的条件下,通过 Na-K 合金的作用,脂肪族和芳香族 - 脂肪族 CC 键的裂解可以在低温下有效地降解煤。(BLM)
1,3-Dicyclohexylimidazol-2-ylidene as a Superior Ligand for the Nickel-Catalyzed Cross-Couplings of Aryl and Benzyl Methyl Ethers with Organoboron Reagents
A new catalytic system has been developed involving the use of Ni(cod)2 in conjunction with 1,3-dicyclohexylimidazol-2-ylidene for the cross-coupling of aryl and benzyl methyl ethers with organoboron reagents. This method not only allows for the use of readily available methyl ethers as halide surrogates but also provides a functional group tolerant method for the late-stage derivatization of complex molecules.
A possible nucleophilic ipso-aromatic substitution with a benzyl anion as the leaving group
作者:Clair J. Collins、Hans Peter Hombach、Brian E. Maxwell、Ben M. Benjamin、Donna McKamey