Pd(II)-Catalyzed Regioselective Multiple C–H Arylations of 1-Naphthamides with Cyclic Diaryliodonium Salts: One-Step Access to [4]- and [5]Carbohelicenes
作者:Menglei Wang、Min Zhang、Yuanyuan Luo、Zheng Liu、Chengyong Yang、Jingbo Lan、Di Wu、Jingsong You
DOI:10.1021/acs.orglett.9b04046
日期:2020.1.3
Highly efficient and rapid construction of carbohelicenes is a desired but challenging task, especially starting from simple substrates. Herein, Pd(II)-catalyzed regioselective multiple C-H arylations of 1-naphthamides with cyclic diaryliodoniums have been accomplished for the first time, which enables facile one-step syntheses of [4]- and [5]carbohelicenes from readily available starting materials
Benzyloxycalix[8]arene supported catalysts bearing N-heterocyclic carbene palladium complexes on each subunit were readily synthesized. Intermediates and catalysts were fully characterized, allowing for a fine control of their structure. X-ray diffraction analysis confirmed the formation of a calix[8]arenebearing eight well-defined NHC palladium complexes. The macrocyclic structure of calix[8]arenes allowed
[EN] FUNCTIONALIZED AND MULTIVARIATE BTB-BASED METAL ORGANIC FRAMEWORKS<br/>[FR] STRUCTURES DE SQUELETTES ORGANOMÉTALLIQUES À BASE DE BTB À PLUSIEURS VARIABLES ET FONCTIONNALISÉS
申请人:UNIV CALIFORNIA
公开号:WO2015157239A1
公开(公告)日:2015-10-15
The disclosure provides for metal organic frameworks (MOFs) which comprise a plurality of SBUs linked together by functionalized or multivariate BTB-based linking ligands. The disclosure further provides for the use of these MOFs in variety of applications, including for gas separation, gas storage, catalysis, and separation of compounds or bioproducts.