Synthesis of New Chromogenic Calix[4]arenes Bridged at the Upper Rim through Bisazobiphenyl Linkages
โ Scribed by Chawla, H. Mohindra; Srinivas, K.
- Book ID
- 127375464
- Publisher
- American Chemical Society
- Year
- 1996
- Tongue
- English
- Weight
- 212 KB
- Volume
- 61
- Category
- Article
- ISSN
- 0022-3263
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๐ SIMILAR VOLUMES
Introduction of one or two 2,2'-bipyridine units at the upper rim of the calix[4]arene platform was performed by means of the Wittig reaction. The resulting alkenes were hydrogenated to give two new bipyridyl-based calixarene podands, which were studied as ligands for Co II cation. The mono-bi-
Synthetic routes were developed to link L-alanine methyl ester or L-alanyl-L-alanine methyl ester at the upper rim of calix [4]arenes blocked in the cone conformation. Several tetra-(3 and 6) and difunctionalized (11 and 12) amino acids containing macrocycles were obtained. Reaction of these compoun