A Simple One-Pot Synthesis of 2-Aryl-5-alkyl-Substituted Oxazoles by Cs2CO3-Mediated Reactions of Aromatic Primary Amides with 2,3-Dibromopropene
作者:Jayanta Ray、Nasima Yasmin
DOI:10.1055/s-0029-1217995
日期:2009.10
A simple and efficient method for the synthesis of 2-aryl-5-alkyl-substituted oxazoles has been developed. A series of 2,5-disubstituted oxazoles were synthesized in a single step by Cs2CO3-mediated reactions of aromatic primary amides with 2,3-dibromopropene.
Rh(<scp>iii</scp>)-Catalyzed olefination to build diverse oxazole derivatives from functional alkynes
作者:Yuan He、Ting Zheng、Yin-Hui Huang、Lin Dong
DOI:10.1039/d1ob00507c
日期:——
A novel Rh(III)-catalyzed olefination reaction of oxazoles to generate diverse oxazole skeleton derivatives has been realized by directly using oxazole as the directing group. The reaction could tolerate many functional groups, affording complex oxazolederivatives with long chain alkenyls in moderate to good yields, which might find applications in the construction of diverse compounds.
通过直接使用恶唑作为导向基团,实现了一种新颖的Rh( III )催化恶唑烯化反应生成多种恶唑骨架衍生物。该反应可以耐受许多官能团,以中等至良好的产率提供具有长链烯基的复杂恶唑衍生物,这可能在构建多种化合物中得到应用。
Highly‐Selective Construction of Aza‐Fused Pyrrolo Isoquinoline Derivatives
作者:Jing Zheng、Yuan He、Lin Dong
DOI:10.1002/ejoc.202201267
日期:2023.1.17
A novel Rh(III)-catalyzed cascade C−H activation/annulation/nucleophilic attack/Michael addition of 2-phenyloxazoles with maleimides for highly-selective construction of pyrroloisoquinoline derivatives through conditions control is reported. In this reaction, oxazoles were used both as the directing group and potential functionalized reagents, H2O was the nucleophile. The notable features of this protocol
报道了一种新型 Rh(III) 催化的级联 C−H 活化/环化/亲核攻击/2-苯基恶唑与马来酰亚胺的迈克尔加成,用于通过条件控制高选择性地构建吡咯并异喹啉衍生物。在该反应中,恶唑被用作导向基团和潜在的功能化试剂,H 2 O 是亲核试剂。该协议的显着特点包括原子经济性和高度区域选择性。
ORGANIC ELECTROLUMINESCENT MATERIALS AND DEVICES
申请人:Universal Display Corporation
公开号:US20210095196A1
公开(公告)日:2021-04-01
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Synthesis of acridones via Ir(iii)-catalyzed amination annulation of oxazoles with anthranils
作者:Han-Yi Zhou、Lin Dong
DOI:10.1039/d4ob00377b
日期:——
An unprecedented Ir(III)-catalyzed C-H activation/amination/annulation of 2-phenyloxazoles with anthranils for the highly selective preparation of acridone derivatives in one-pot under controlled conditions is reported. This protocol is characterized by atom...