Photochemistry of the Nitrogen-Thiocarbonyl Systems. 30. Intermolecular Photoaddition Reaction of Arenecarbothioamides to 2-Methoxy- and 2-Trimethylsiloxyfurans. Facile Synthesis of Arene-Fused Aminobenzoates by Novel Photoinduced Benzannulation.
作者:Kazuaki ODA、Masayuki SAKAI、Minoru MACHIDA
DOI:10.1248/cpb.45.584
日期:——
Irradiation of arenecarbothioamides with 2-methoxyfuran in benzene solution gave arene-fused aminobenzoates in moderate yields accompanied by small smounts of arylpyrroles or arylthiophenes. In the case of 2-trimethylsiloxyfuran, arenecarbothioamides gave arene-fused aminobenzoates in good yields as sole products. It was demonstrated that certain furan derivatives are potentially useful as building blocks in photoinduced benzannulation.
对苯炔羰
亚胺在苯溶液中与2-甲氧基
呋喃辐照反应,得到中等产率的芳香族融合
氨基
苯甲酸酯,同时伴随少量的芳香族
吡咯或芳香族
噻吩。在2-三甲基
硅氧
呋喃的情况下,苯炔羰
亚胺作为唯一产物得到高产率的芳香族融合
氨基
苯甲酸酯。研究表明,某些
呋喃衍
生物在光诱导的苯环缩合反应中可能作为有用的构建块。