The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 27, 2023
Filed:
May. 25, 2021
Nanjing University of Posts and Telecommunications, Nanjing, CN;
Guangwei Zhang, Nanjing, CN;
Jiayin Xiang, Nanjing, CN;
Wei Huang, Nanjing, CN;
Chuang Gao, Nanjing, CN;
Linghai Xie, Nanjing, CN;
Xinru Zhi, Nanjing, CN;
Nanjing University of Posts and Telecommunications, Nanjing, CN;
Abstract
A cyclic compound formed by a Friedel-Crafts reaction at positions 1 and 3 of carbazole and a preparation method thereof are disclosed. The compound is formed by connecting an achiral type I di-(tertiary alcohol) synthon constructed from fluorenyl and benzene or a derivative thereof, at position 9 of fluorenyl with positions 1 and 3 of carbazole, forming a closed ring structure with a clear and durable shape, having clear side lengths and vertices on the nanometer scale. The cyclic compound has a general structural formula of