High-yield preparation of [2]rotaxanes based on the bis(m-phenylene)-32-crown-10-based cryptand/paraquat derivative recognition motif.

نویسندگان

  • Shijun Li
  • Ming Liu
  • Jinqiang Zhang
  • Bo Zheng
  • Chuanju Zhang
  • Xianhong Wen
  • Ning Li
  • Feihe Huang
چکیده

Based on the complexation between bis(m-phenylene)-32-crown-10-based cryptands and a paraquat derivative, two [2]rotaxanes were synthesized by using a threading-followed-by-stoppering method. Due to the strong associations between the cryptands and the paraquat derivative, high yields were achieved even in dilute solution.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Synthesis of a water-soluble bis(m-phenylene)-32-crown-10-based cryptand and its pH-responsive binding to a paraquat derivative.

By introducing a third arm with two anionic carboxylate groups, a water-soluble bis(m-phenylene)-32-crown-10-based cryptand was synthesized. Its pH-controlled host-guest complexation with a paraquat derivative in water was studied.

متن کامل

Three-dimensional bis(m-phenylene)-32-crown-10-based cryptand/paraquat catenanes.

Two three-dimensional catenanes have been successfully synthesized from a bis(m-phenylene)-32-crown-10-based cryptand and paraquat derivatives in reasonable yields.

متن کامل

First pseudorotaxane-like [3]complexes based on cryptands and paraquat: self-assembly and crystal structures.

A new cryptand, bis(1,3,5-phenylene)tri(1,4,7,10-tetraoxadecyl) (3a), has been synthesized in good yield from bis(5-hydroxy-1,3-phenylene)-26-crown-8 (2a) and tri(ethylene glycol) ditosylate using pseudo-high dilution conditions. 3a forms a strong 1:1 complex with paraquat (1) in acetone solution with a high apparent association constant, 1.4 x 10(4) M(-)(1). A stoichiometry of 1:1 was also obs...

متن کامل

A pentiptycene-based bis(crown ether) host: synthesis and its complexation with cyclobis(paraquat-p-phenylene).

A novel pentiptycene-based bis(crown ether) host incorporating two dibenzo-24-crown-8 ether moieties has been synthesized, and its efficient complexation ability toward cyclobis(paraquat-p-phenylene) in solution and in the solid state has been explored.

متن کامل

Boron-based rotaxanes by multicomponent self-assembly.

The multicomponent reaction of 1,2-di(4-pyridyl)ethylene, catechol, 3,5-bis(trifluoromethyl)phenylboronic acid and 1,5-dinaphtho-38-crown-10 or bis-para-phenylene-34-crown-10, respectively, resulted in the formation of rotaxanes, which were characterized by X-ray crystallography.

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:
  • Organic & biomolecular chemistry

دوره 6 12  شماره 

صفحات  -

تاریخ انتشار 2008