One-Pot Cascade Synthesis of Substituted Carbazoles from Indoles, Ketones, and Alkenes Using Oxygen as the Oxidant
作者:Shanping Chen、Yuxia Li、Penghui Ni、Baichuan Yang、Huawen Huang、Guo-Jun Deng
DOI:10.1021/acs.joc.6b02892
日期:2017.3.17
An efficient one-pot two-step indole-to-carbazole strategy has been developed. This transitionmetal-free methodology uses oxygen as the sole oxidant and starts from cheap and readily available indoles, ketones, and alkenes. The present protocol efficiently enables the assembly of a diverse array of substituted carbazole products with good regioselectivity and broad tolerance of functional groups.
ORGANOMETALLIC COMPOUND AND ORGANIC LIGHT-EMITTING DEVICE INCLUDING THE SAME
申请人:Samsung Electronics Co., Ltd.
公开号:US20190036039A1
公开(公告)日:2019-01-31
An organometallic compound represented by one of Formulae 1 to 4:
wherein, in Formulae 1 to 4, groups and variables are the same as described in the specification.
Novel Non‐toxic and Non‐hazardous Solvent Systems for the Chemistry of Indoles: Use of a Sulfone‐containing Brønsted Acid Ionic Liquid Catalyst in Butyl Acetate
Dipolar and aprotic solvents are often required in acid‐catalyzed reactions, however, many of them are listed in solvent selection guides as not‐recommended due to their toxicity or explosivity. A catalytically functionalized ionic liquid, namely a sulfone‐containing imidazolium‐based Brønsted acid ionic liquid, was synthesized. It alleviates the detrimental effect of classical dipolar aprotic solvents
Pd‐Catalyzed Cyclization of Alkynyl Norbornene Derivatives for the Synthesis of Benzofused Heteroarenes
作者:Hayeon Kwak、Eunsu Kang、Jae Yeong Song、Geunhee Kang、Jung Min Joo
DOI:10.1002/adsc.202100763
日期:2021.11.9
Modular approaches, which allow a systematic variation of heteroaromatic cores and substituents, are crucial for the development of heteroaromatic drug candidates and organic functional materials. A new strategy involving the cyclization of heteroarenes tethered with alkynes through a norbornene bridge was developed. The precursors were readily prepared by a three-component coupling process of heteroaryl