Alkoxy Substituted Brominated <i>closo</i>-Dodecaborates with Functionalized Aliphatic Spacers

The utilization of dodecaborate boron clusters, [B<sub>12</sub>X<sub>12</sub>]<sup>2−</sup> (X = Cl, Br, or I), as membrane carriers has been demonstrated recently, and their activity is known to be due to their superchaotropic nature. In this work, the mono-alkyl...

Full description

Saved in:
Bibliographic Details
Main Authors: Satoshi Yamamoto, Hibiki Nakamura, Yumiko K. Kawamura, Taro Kitazawa, Mutsumi Kimura, Yu Kitazawa
Format: Article
Language:English
Published: MDPI AG 2024-12-01
Series:Chemistry
Subjects:
Online Access:https://www.mdpi.com/2624-8549/6/6/99
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The utilization of dodecaborate boron clusters, [B<sub>12</sub>X<sub>12</sub>]<sup>2−</sup> (X = Cl, Br, or I), as membrane carriers has been demonstrated recently, and their activity is known to be due to their superchaotropic nature. In this work, the mono-alkylation of [B<sub>12</sub>Br<sub>11</sub>OH]<sup>2−</sup> to functionalize it with an aliphatic spacer was developed with a view to expanding the known chemical space of membrane carriers based on [B<sub>12</sub>Br<sub>12</sub>]<sup>2−</sup>. A new and improved facile route for the preparation of [B<sub>12</sub>Br<sub>11</sub>OH]<sup>2−</sup>, which is an important precursor to other [B<sub>12</sub>Br<sub>11</sub>OR]<sup>2−</sup> species, is reported. Various alkoxylated [B<sub>12</sub>Br<sub>11</sub>O(CH<sub>2</sub>)<sub>5</sub>Z]<sup>2−</sup> (Z = OH, N(CO)<sub>2</sub>C<sub>6</sub>H<sub>4</sub>, CN and N<sub>3</sub>) derivatives were prepared via a divergent synthesis based on [B<sub>12</sub>Br<sub>11</sub>O(CH<sub>2</sub>)<sub>5</sub>Br]<sup>2−</sup>. One of the newly synthesized compounds was utilized as a membrane carrier, and its impact on cell viability was examined.
ISSN:2624-8549