Some fatty acids having an<i>O</i>-heterocycle in their terminal positions.<b>II</b>. ω-(3-Coumarinyl)alkanoic acids and ω-(2-chromonyl)alkanoic acids
作者:Seiji Yamaguchi、Miyuki Saitoh、Yoshiyuki Kawase
DOI:10.1002/jhet.5570280122
日期:1991.1
Some ω-3-coumarinyl)alkanoicacids 1a, n = 3-6 were synthesized by cyclization of corresponding ethyl o-formylphenyl alkanedioate 3 with DBU followed by hydrolysis. By a similar cyclization, someω-(2-chromonyl)alkanoicacids 2a, n = 3-6 were also obtained from the cyclization of corresponding o-acetylphenyl ethyl alkanedioate 4.