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. 2018 Apr 3;6:84. doi: 10.3389/fchem.2018.00084

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Copyright © 2018 De Rosa, La Manna, Talotta, Soriente, Gaeta and Neri.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Calixarenes as efficient organocatalyst for a vinylogous Mukaiyama aldol reaction (VMAR) under “on-water” conditions: (A) VMAR promoted by thioureido-calixarene derivatives 85 and 86; (B) VMAR catalyzed by tetraminocalix[4]arene 87.