𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Synthesis of Substituted Crown-Ethers by radical addition of 18-crown-6

✍ Scribed by Ju. B. Zeleconok; V. V. Orlovskij; Prof. Dr. S. S. Zlotskij; Prof. Dr. D. L. Rachmankulov

Publisher
John Wiley and Sons
Year
1990
Tongue
English
Weight
238 KB
Volume
332
Category
Article
ISSN
1615-4150

No coin nor oath required. For personal study only.

✦ Synopsis

Abstract

An example of the synthesis of substituted crown‐ethers by radical addition reaction of 18‐crown‐6 (1) to several α‐olefins (2a‐e), cyclohexene (2f), vinyl butyl ether (2g), allyl alcohol (2h), trimethylvinylsilane (2i), diethylmaleate (2j) and formaldehyde (2k) in the presence of a peroxide initiator was studied.

The dependence of the yield of the addition product upon reaction conditions was also investigated.

📜 SIMILAR VOLUMES

Chemistry of crown ethers. XVII. Triphas
Chemistry of crown ethers. XVII. Triphase catalysis by immobilized benzo-18-crown-6
✍ A. van Zon; F. de Jong; Y. Onwezen 📂 Article 📅 2010 🏛 Elsevier Science 🌐 English ⚖ 419 KB

## Abstract Several immobilized benzo‐18‐crown‐6 derivatives have been synthesized and a study has been made of their activities as triphase catalysts in the reaction between 1‐bromooctane in toluene and aqueous potassium cyanide. In each case the reaction rate was proportional to the 1‐bromooctane

Synthesis of Schiff Base-type Liquid Cry
Synthesis of Schiff Base-type Liquid Crystalline Crown Ethers Containing Dibenzo-18-Crown-6 Unit
✍ Shu-Yuan Zhang; Ke-Ke He; Shi-Jun Zheng; Si-Fu Tang; Xiao-Jing Zhang; Zi-Fa Li 📂 Article 📅 2010 🏛 John Wiley and Sons 🌐 English ⚖ 539 KB

## Abstract The synthesis and characterization of novel Schiff base liquid crystalline crown ethers prepared from the intermediates 4‐(4′‐alkoxylbiphenyl‐4‐carbonyl) benzaldehyde, __cis‐__ and __trans__‐4,4′‐diaminodibenzo‐18‐crown‐6 are described. The structure of these compounds have been well ch