Catalyst-free direct C(sp<sup>3</sup>)–H sulfenylation of xanthene derivatives using air as the oxidant
作者:Qian Chen、Guodian Yu、Xiaofeng Wang、Yingcong Ou、Yanping Huo
DOI:10.1039/c8gc03898h
日期:——
A catalyst-free direct C(sp3)–H sulfenylation has been achieved via the autoxidative cross-dehydrogenative coupling (CDC) between xanthene derivatives and thiophenols in ethanol using air as the sole oxidant at room temperature. This simple and efficient method provides straightforward access to 9-sulfenylated xanthenes, 9,10-dihydroacridines and thioxanthene with good functional group compatibility
Acridine derivative and organic electroluminescence device including the same
申请人:Kim Tae-Hyung
公开号:US08597802B2
公开(公告)日:2013-12-03
Disclosed are an acridine derivative and an organic electro-luminescence device including the same. Specifically, the disclosed acridine derivative compound has an aryl moiety or a heteroaryl moiety, linked to an acridine moiety and an amine moiety, and the disclosed organic electro-luminescence device including the acridine derivative compound requires a low operating voltage, shows high efficiency, and is enhanced in life-span.
Electrochemically Mediated S-Glycosylation of 1-Thiosugars with Xanthene Derivatives
作者:Rui-Qi Wang、Qing-Hui Jiang、Hui-Xiang Wang、Xiao-Wei Zhang、Nan Yan
DOI:10.1021/acs.orglett.3c01185
日期:2023.6.16
electrochemical dehydrogenativecross-coupling of benzylic C–H bonds with 1-thiosugars at room temperature is described. The direct S-glycosylation protocol avoids using any oxidant, which provides facile access to various glycosylated xanthene derivatives with up to 91% yield. This current electrooxidative reaction is characterized by high atom economy, high efficiency, mild reaction conditions, being
Photocatalytic C(sp3)–H phosphorylation of xanthenes and 9,10-dihydroacridines with P(O)–Hcompounds under the irradiation of 18 W blue LEDs at room temperature using fluorescein as the photocatalyst and molecular oxygen (O2) as the sole oxidant has been achieved. The newly developed reaction provides direct access to 9-phosphorylated xanthene derivatives with good functional group compatibility.
以荧光素为光催化剂,分子氧 (O 2 ) 为光催化剂,室温下 18 W 蓝光 LED 照射下,氧杂蒽和 9,10-二氢吖啶与 P(O)-H 化合物的光催化 C(sp 3 )–H磷酸化已实现唯一氧化剂。新开发的反应可以直接获得具有良好官能团相容性的9-磷酸化呫吨衍生物。