Synthesis of 3-Benzylphthalide Derivatives by Using a TDAE
Strategy
作者:Patrice Vanelle、Maroua Ibrahimi、Omar Khoumeri、Raoudha Abderrahim、Thierry Terme
DOI:10.1055/a-1290-8349
日期:2021.2
A one-pot synthesis of new 3-benzylphthalide derivatives was developed by using a strategy based on tetrakis(dimethylamino)ethylene (TDAE). The reactions in the presence of TDAE of substituted benzyl chlorides with methyl 2-formylbenzoate or of substituted methyl-2-formylbenzoates with 4-nitrobenzyl chloride furnished the corresponding isobenzofuran-1(3H)-one products in moderate to good yields.
Synthesis of isocoumarins via palladium catalyzed reactions of methyl 2-(2′, 2′-dibromovinyl)benzoates
作者:Le Wang、Wang Shen
DOI:10.1016/s0040-4039(98)01690-6
日期:1998.10
3-Substituted isocoumarins are synthesized in good to excellent yields via palladium catalyzed coupling of 2-(2′,2′-dibromovinyl)benzoates and organostannanes. The process involves a Stille reaction, and a subsequent annulation reaction.