Structure of .omega.-arylalkyl radicals: a carbon-13 CIDNP investigation
作者:George A. Olah、V. V. Krishnamurthy、Brij P. Singh、Pradeep S. Iyer
DOI:10.1021/jo00155a006
日期:1983.4
An Effective Use of Benzoic Anhydride and Its Derivatives for the Synthesis of Carboxylic Esters and Lactones: A Powerful and Convenient Mixed Anhydride Method Promoted by Basic Catalysts
4-(dimethylamino)pyridine. A similar reaction occurs with triethylamine when using a catalytic amount of 4-(dimethylamino)pyridine 1-oxide as an effective promoter for the intramolecular condensation reaction. These methods are successfully applied to the synthesis of erythro-aleuritic acid lactone and an eight-membered-ring lactone moiety of octalactins A and B. The efficiency of the cyclizations is