已经开发了一种无金属的光催化策略,用于在廉价的NH 4 SCN中以氮化碳(gC 3 N 4)作为绿色溶剂中的普通多相催化剂,在空气气氛下和蓝色LED的照射下制备硫氰化杂环。各种硫氰酸盐杂环,包括吲哚[2,1- a ]异喹啉-6(5 H)-one,苯并咪唑并[2,1- a ]异喹啉-6(5 H)-one,硫代黄酮,氮杂螺[4.5]三烯酮和咪唑[ 1,2-一以高产率(高达96%)成功合成了]吡啶。重要的是,这种无金属和无外部氧化剂的方法使用碳酸二甲酯作为绿色介质,避免了传统的挥发性有机溶剂。此外,可循环使用的gC 3 N 4催化剂可使用至少8次,而不会显着降低活性。
Rh-Catalyzed oxidative C–H activation/annulation: converting anilines to indoles using molecular oxygen as the sole oxidant
作者:Guoying Zhang、Hui Yu、Guiping Qin、Hanmin Huang
DOI:10.1039/c3cc49751h
日期:——
A practical and efficient Rh(III)-catalyzed aerobic C-Hactivation has been developed for the facile synthesis of a broad range of indoles from simple anilines and alkynes. The protocol could be conducted under mild conditions and used environmentally friendly oxygen as the sole clear oxidant.
A redox‐neutral cobalt(III)‐catalyzed synthetic approach for the direct synthesis of unprotected indoles showcasing an N−Nbondcleavage is reported. The herein newly introduced Boc‐protected hydrazines establish a beneficial addition to the limited portfolio of oxidizing directing groups for cobalt(III) catalysis. Moreover, the developed catalytic methodology tolerates a good variety of functional
General and Efficient Synthesis of Indoles through Triazene-Directed C-H Annulation
作者:Chengming Wang、Huan Sun、Yan Fang、Yong Huang
DOI:10.1002/anie.201301742
日期:2013.5.27
Unprotected indoles are prepared with the title method, which has a wide scope for alkynes. Excellent regioselectivity was accomplished for aryl–alkyl and alkyl–alkyl disubstituted acetylenes. This reaction features an unusual 1,2 rhodium migration and ring‐contraction‐triggered NN bond cleavage. It allows rapid conversion of the reaction products into several functional molecules.
NOVEL COMPOUND AND ORGANIC ELECTROLUMINESCENCE DEVICE INCLUDING THESAME
申请人:DOOSAN CORPORATION
公开号:US20150236272A1
公开(公告)日:2015-08-20
The present invention relates to a novel indole-based compound having excellent hole injection and transport capabilities, light-emitting capabilities, and the like, and an organic electroluminescence device which includes the indole-based compound in one or more organic material layers thereof so as to improve characteristics such as light-emitting efficiency, driving voltage, and lifespan.