A facile route to 3,7-cis-disubstituted cycloocta-1,5-diene-1,2,5,6- tetracarboxylates through photochemical [2 + 2]cycloaddition of 3-substituted cyclobutene-1,2-dicarboxylates and thermal isomerization†
作者:Hisayuki Watanabe、Yasuyuki Nakajima、Michiaki Adachi、Hiroyasu Hotta、Kazutaka Arai、Yoshiyasu Baba、Carole Noutary、Satsuki Ichikawa、Tetsuo Kusumoto
DOI:10.1039/a903942b
日期:——
Photochemical dimerization of 3-substituted cyclobutene-1,2-dicarboxylates followed by thermal isomerization gives regio- and stereo-selectively 3,7-cis-disubstituted cycloocta-1,5-diene-1,2,5,6-tetracarboxylates.
3-取代环丁烯-1,2-二羧酸酯的光化学二聚反应随后经过热异构化,可以选择性地生成区域和立体选择性的 3,7-顺式二取代环辛烯-1,5-二烯-1,2,5,6-四羧酸酯。