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ChemInform Abstract: Synthesis and Structural Studies of 5,11,17,23-Tetrahydroxyresorc[4]arenes.

✍ Scribed by Thorsten Gerkensmeier; Ceno Agena; Waldemar Iwanek; Roland Froehlich; Sirpa Kotila; Christian Naether; Jochen Mattay

Publisher
John Wiley and Sons
Year
2010
Weight
25 KB
Volume
33
Category
Article
ISSN
0931-7597

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## Abstract Treatment of 5,11,17,23‐tetrakis[(__p__‐carboxyphenyl)azo]‐25,26,27,28‐tetrahydroxy calix[4]arene (**2**) with HCl in DMF or NaOH in MeOH produced 5,11,17,23‐tetrakis[(__p__‐carboxyphenyl)azo]‐25,26,27,28‐tetrahydroxycalix[4]‐arene·4DMF (2·4DMF) and 5,11,17,23‐tetrakis[(__p__‐carboxyphe