Synthesis of Benzofuropyridines and Dibenzofurans by a Metalation/Negishi Cross-Coupling/S<sub>N</sub>Ar Reaction Sequence
作者:Guy J. Clarkson、Stefan Roesner
DOI:10.1021/acs.joc.2c02111
日期:2023.1.6
methodology for the synthesis of benzofuropyridines and dibenzofurans from fluoropyridines or fluoroarenes and 2-bromophenyl acetates is reported. This streamlined one-pot procedure consists of a four-step directed ortho-lithiation, zincation, Negishi cross-coupling, and intramolecular nucleophilic aromatic substitution, allowing for the facile assembly of a diverse set of fused benzofuro heterocycles.
A method of killing or controlling insect, mite or nematode pests which method comprises applying to the pest or to the locus thereof an effective amount of a compound of formula (I):
wherein R is hydrogen or C1-4 alkyl; and X, Y and Z are independently selected from hydrogen, halogen, or OR¹ where R¹ is optionally substituted aryl or heteroaryl group.
Certain of the compounds of formula (I) are novel and these form a further aspect of the invention
一种杀灭或控制昆虫、螨虫或线虫害虫的方法,该方法包括向害虫或害虫所在地施用有效量的式(I)化合物:
其中 R 是氢或 C1-4 烷基;X、Y 和 Z 独立选自氢、卤素或 OR¹,其中 R¹ 是任选取代的芳基或杂芳基。
某些式(I)化合物是新颖的,它们构成了本发明的另一个方面
US4857551A
申请人:——
公开号:US4857551A
公开(公告)日:1989-08-15
[EN] ROR-GAMMA INHIBITORS<br/>[FR] INHIBITEURS DE ROR-GAMMA
申请人:GLAXOSMITHKLINE IP DEV LTD
公开号:WO2019063748A1
公开(公告)日:2019-04-04
The present invention relates to compounds of formula I and pharmaceutical compositions comprising compounds of formula I. Compounds of Formula I are useful in treatment of inflammatory, metabolic or autoimmune diseases which are mediated by RORy.
Samarium trifluoromethanesulfonate catalyzed the acylation of phenols, alcohols, thiols, free reducing sugars, and glycosides in excellent yields at ambient temperature undersolvent‐freecondition using stoichiometric amounts of various anhydrides.