Scalable synthesis of [8]cycloparaphenyleneacetylene carbon nanohoop using alkyne metathesis.
Chem Commun (Camb)
; 57(83): 10887-10890, 2021 Oct 19.
Article
em En
| MEDLINE
| ID: mdl-34604870
ABSTRACT
Large scale synthesis of cycloparaphenyleneacetylenes has been challenging due to low macrocyclization yields and harsh aromatization methods that often decompose strained alkynes. Herein, a cis-stilbene-based building block is subjected to alkyne metathesis macrocylization. The following sequence of alkene-selective bromination and dehydrobromination afforded a [8]cycloparaphenyleneacetylene derivative in high yield with good scalability. X-Ray crystal structure and computational analysis revealed a unique same-rim conformation for the eight methyl groups on the nanohoop.
Texto completo:
1
Base de dados:
MEDLINE
Idioma:
En
Ano de publicação:
2021
Tipo de documento:
Article