Synthesis and metal transport ability of a new series of thiamacrocycles containing thiol and disulfide groups inside the ring

✍ Scribed by Tatsuya Nabeshima; Taizo Aoki; Tsutomu Haruyama; Toshinobu Shinnai; Hideaki Ohshiro; Toshiyuki Saiki; Yumihiko Yano

• Publisher: John Wiley and Sons
• Year: 2001
• Tongue: English
• Weight: 112 KB
• Volume: 12
• Category: Article
• ISSN: 1042-7163
• DOI: 10.1002/hc.1044

✦ Synopsis

Abstract

Synthetic methods for thiamacrocycles containing two thiol groups or a disulfide linkage and their abilities to effect single heavy‐metal‐ion transport across a liquid membrane were examined. High Ag^+^ selectivity was accomplished by the thiol or disulfide hosts, although all the corresponding crown ether analogs bearing a disulfide group showed no Ag^+^ selectivity. The difference of the transport preferences among the thiacrown ethers prepared here is considered to be reflected by the position and the number of the sulfur atoms ligating to Ag^+^ and the cavity size of the hosts. © 2001 John Wiley & Sons, Inc. Heteroatom Chem 12:276–281, 2001