Room temperature cyclization of arylpropiolic acid anhydride: Synthesis of naphtho[2,3-<i>c</i>]furan-1,3-dione derivatives
作者:Jaerim Park、Ji Dang Kim、Gabriel Charles Edwin Raja、Hyun Chul Choi、Sunwoo Lee
DOI:10.1080/00397911.2017.1358369
日期:2017.11.2
ABSTRACT Cyclic anhydrides such as naphtho[2,3-c]furan-1,3-dione derivatives were synthesized from the reaction of arylpropiolic acids and 2-chloro-4,6-dimethoxy-1,3,5-triazine in the presence of N-methylmorpholine at room temperature. This mild condition provided the naphtho[2,3-c]furan-1,3-dione derivatives in good yields. Spectroscopic analysis suggested that the formation of arylpropiolate is the
摘要 芳基丙酸和 2-氯-4,6-二甲氧基-1,3,5-三嗪在存在下反应合成环酐,如萘并[2,3-c]呋喃-1,3-二酮衍生物N-甲基吗啉在室温下。这种温和的条件以良好的收率提供了萘并[2,3-c]呋喃-1,3-二酮衍生物。光谱分析表明芳基丙炔酸酯的形成是决定速率的步骤。图形概要