highly efficient visible light-induced regioselective and stereoselective oxysulfonylation of alkynes with arylsulfonate phenol esters has been developed. This photocatalyst- and metal-free method proceeds smoothly under very mild conditions and exhibits a broad substrate scope, providing (E)-β-phenoxy vinylsulfones in moderate to excellent yields. Mechanisticstudies indicated the involvement of an electron
已经开发了一种高效的可见光诱导的区域选择性和立体选择性的炔烃与芳基磺酸酯酚酯的氧磺酰化。这种不含光催化剂和金属的方法在非常温和的条件下顺利进行,并表现出广泛的底物范围,以中等至优异的产率提供 ( E )-β-苯氧基乙烯基砜。机理研究表明电子供体-受体复合物介导的自由基过程的参与。
MIYANO, SCIJI;TATSUOKA, TOSHIO;SUZUKI, KENJI;IMAO, KAYOKO;SATOH, FUMIO;IS+, CHEM. AND PHARM. BULL., 38,(1990) N, C. 1570-1574
A series of 4, 4-diarylbutylamine and 4, 4-diarylbutanamide derivatives has been synthesized and evaluated for their antilipidperoxidation (ALP) activity and acute toxicity (LD50). Some of them were found to have significant ALP activity.
研究人员合成了一系列 4,4-二叔丁胺和 4,4-二叔丁酰胺衍生物,并对它们的抗脂质过氧化(ALP)活性和急性毒性(LD50)进行了评估。结果发现,其中一些衍生物具有显著的 ALP 活性。