A novel method for the upper rim alkoxy-substitution of calix[4]arene via a bis(spirodienone) route |
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| Authors: | Sreeja Thulasi |
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| Institution: | Organic Chemistry Section, Chemical Sciences and Technology Division, National Institute for Interdisciplinary Science and Technology (CSIR), Trivandrum 695 019, India |
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| Abstract: | A mild and efficient one-step procedure for the upper rim modification of calix4]arene via a bis(spirodienone) is described. The bis(spirodienone) on reaction with alcohols in the presence of p-TSA affords mono- and 1,3-disubstituted alkoxy derivatives in moderate to good yields. |
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| Keywords: | p-tert-Butyl-calix[4]arene Calix[4]bis(spirodienones) Upper rim Selective functionalization Nucleophilic attack |
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